external/liborcus/UnpackedTarball_liborcus.mk |    1 
 external/liborcus/boost_system.patch.1        |14378 ++++++++++++++++++++++++++
 2 files changed, 14379 insertions(+)

New commits:
commit 14db52add73b6bcbfd142032eabbc2a8336ce064
Author:     Thorsten Behrens <[email protected]>
AuthorDate: Sat Nov 8 14:54:35 2025 +0100
Commit:     Thorsten Behrens <[email protected]>
CommitDate: Wed Nov 12 03:42:00 2025 +0100

    Fix liborcus build against newer (>=1.89) system boost
    
    Pulled in updated m4/boost.m4 and re-ran autoconf.
    
    Change-Id: I3f5ee4b883e872e8c5d424ec69475fadb159b45f
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/193631
    Tested-by: Jenkins CollaboraOffice <[email protected]>
    Reviewed-by: Kohei Yoshida <[email protected]>

diff --git a/external/liborcus/UnpackedTarball_liborcus.mk 
b/external/liborcus/UnpackedTarball_liborcus.mk
index bb399826c358..7e6a2acc6edb 100644
--- a/external/liborcus/UnpackedTarball_liborcus.mk
+++ b/external/liborcus/UnpackedTarball_liborcus.mk
@@ -18,6 +18,7 @@ $(eval $(call 
gb_UnpackedTarball_update_autoconf_configs,liborcus))
 $(eval $(call gb_UnpackedTarball_add_patches,liborcus,\
        external/liborcus/rpath.patch.0 \
        external/liborcus/libtool.patch.0 \
+       external/liborcus/boost_system.patch.1 \
 ))
 
 ifeq ($(OS),WNT)
diff --git a/external/liborcus/boost_system.patch.1 
b/external/liborcus/boost_system.patch.1
new file mode 100644
index 000000000000..7a4316ad2848
--- /dev/null
+++ b/external/liborcus/boost_system.patch.1
@@ -0,0 +1,14378 @@
+diff -ur liborcus.org/configure liborcus/configure
+--- liborcus.org/configure     2025-11-08 14:20:44.934846921 +0100
++++ liborcus/configure 2025-11-08 14:21:16.950341095 +0100
+@@ -1,9 +1,9 @@
+ #! /bin/sh
+ # Guess values for system-dependent variables and create Makefiles.
+-# Generated by GNU Autoconf 2.71 for liborcus 0.19.2.
++# Generated by GNU Autoconf 2.72 for liborcus 0.19.2.
+ #
+ #
+-# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
++# Copyright (C) 1992-1996, 1998-2017, 2020-2023 Free Software Foundation,
+ # Inc.
+ #
+ #
+@@ -15,7 +15,6 @@
+ 
+ # Be more Bourne compatible
+ DUALCASE=1; export DUALCASE # for MKS sh
+-as_nop=:
+ if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+ then :
+   emulate sh
+@@ -24,12 +23,13 @@
+   # is contrary to our usage.  Disable this feature.
+   alias -g '${1+"$@"}'='"$@"'
+   setopt NO_GLOB_SUBST
+-else $as_nop
+-  case `(set -o) 2>/dev/null` in #(
++else case e in #(
++  e) case `(set -o) 2>/dev/null` in #(
+   *posix*) :
+     set -o posix ;; #(
+   *) :
+      ;;
++esac ;;
+ esac
+ fi
+ 
+@@ -101,7 +101,7 @@
+ 
+      ;;
+ esac
+-# We did not find ourselves, most probably we were run as `sh COMMAND'
++# We did not find ourselves, most probably we were run as 'sh COMMAND'
+ # in which case we are not to be found in the path.
+ if test "x$as_myself" = x; then
+   as_myself=$0
+@@ -131,15 +131,14 @@
+ esac
+ exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+ # Admittedly, this is quite paranoid, since all the known shells bail
+-# out after a failed `exec'.
++# out after a failed 'exec'.
+ printf "%s
" "$0: could not re-execute with $CONFIG_SHELL" >&2
+ exit 255
+   fi
+   # We don't want this to propagate to other subprocesses.
+           { _as_can_reexec=; unset _as_can_reexec;}
+ if test "x$CONFIG_SHELL" = x; then
+-  as_bourne_compatible="as_nop=:
+-if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
++  as_bourne_compatible="if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 
2>&1
+ then :
+   emulate sh
+   NULLCMD=:
+@@ -147,12 +146,13 @@
+   # is contrary to our usage.  Disable this feature.
+   alias -g '\${1+\"\$@\"}'='\"\$@\"'
+   setopt NO_GLOB_SUBST
+-else \$as_nop
+-  case \`(set -o) 2>/dev/null\` in #(
++else case e in #(
++  e) case \`(set -o) 2>/dev/null\` in #(
+   *posix*) :
+     set -o posix ;; #(
+   *) :
+      ;;
++esac ;;
+ esac
+ fi
+ "
+@@ -170,8 +170,9 @@
+ if ( set x; as_fn_ret_success y && test x = \"\$1\" )
+ then :
+ 
+-else \$as_nop
+-  exitcode=1; echo positional parameters were not saved.
++else case e in #(
++  e) exitcode=1; echo positional parameters were not saved. ;;
++esac
+ fi
+ test x\$exitcode = x0 || exit 1
+ blah=\$(echo \$(echo blah))
+@@ -193,14 +194,15 @@
+   if (eval "$as_required") 2>/dev/null
+ then :
+   as_have_required=yes
+-else $as_nop
+-  as_have_required=no
++else case e in #(
++  e) as_have_required=no ;;
++esac
+ fi
+   if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
+ then :
+ 
+-else $as_nop
+-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
++else case e in #(
++  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+ as_found=false
+ for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+ do
+@@ -233,12 +235,13 @@
+ if $as_found
+ then :
+ 
+-else $as_nop
+-  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
++else case e in #(
++  e) if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+             as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 
2>/dev/null
+ then :
+   CONFIG_SHELL=$SHELL as_have_required=yes
+-fi
++fi ;;
++esac
+ fi
+ 
+ 
+@@ -260,7 +263,7 @@
+ esac
+ exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+ # Admittedly, this is quite paranoid, since all the known shells bail
+-# out after a failed `exec'.
++# out after a failed 'exec'.
+ printf "%s
" "$0: could not re-execute with $CONFIG_SHELL" >&2
+ exit 255
+ fi
+@@ -279,7 +282,8 @@
+ $0: the script under such a shell if you do have one."
+   fi
+   exit 1
+-fi
++fi ;;
++esac
+ fi
+ fi
+ SHELL=${CONFIG_SHELL-/bin/sh}
+@@ -318,14 +322,6 @@
+   as_fn_set_status $1
+   exit $1
+ } # as_fn_exit
+-# as_fn_nop
+-# ---------
+-# Do nothing but, unlike ":", preserve the value of $?.
+-as_fn_nop ()
+-{
+-  return $?
+-}
+-as_nop=as_fn_nop
+ 
+ # as_fn_mkdir_p
+ # -------------
+@@ -394,11 +390,12 @@
+   {
+     eval $1+=\$2
+   }'
+-else $as_nop
+-  as_fn_append ()
++else case e in #(
++  e) as_fn_append ()
+   {
+     eval $1=\$$1\$2
+-  }
++  } ;;
++esac
+ fi # as_fn_append
+ 
+ # as_fn_arith ARG...
+@@ -412,21 +409,14 @@
+   {
+     as_val=$(( $* ))
+   }'
+-else $as_nop
+-  as_fn_arith ()
++else case e in #(
++  e) as_fn_arith ()
+   {
+     as_val=`expr "$@" || test $? -eq 1`
+-  }
++  } ;;
++esac
+ fi # as_fn_arith
+ 
+-# as_fn_nop
+-# ---------
+-# Do nothing but, unlike ":", preserve the value of $?.
+-as_fn_nop ()
+-{
+-  return $?
+-}
+-as_nop=as_fn_nop
+ 
+ # as_fn_error STATUS ERROR [LINENO LOG_FD]
+ # ----------------------------------------
+@@ -500,6 +490,8 @@
+     /[$]LINENO/=
+   ' <$as_myself |
+     sed '
++      t clear
++      :clear
+       s/[$]LINENO.*/&-/
+       t lineno
+       b
+@@ -548,7 +540,6 @@
+ as_echo='printf %s
'
+ as_echo_n='printf %s'
+ 
+-
+ rm -f conf$$ conf$$.exe conf$$.file
+ if test -d conf$$.dir; then
+   rm -f conf$$.dir/conf$$.file
+@@ -560,9 +551,9 @@
+   if ln -s conf$$.file conf$$ 2>/dev/null; then
+     as_ln_s='ln -s'
+     # ... but there are two gotchas:
+-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+-    # In both cases, we have to default to `cp -pR'.
++    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
++    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
++    # In both cases, we have to default to 'cp -pR'.
+     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+       as_ln_s='cp -pR'
+   elif ln conf$$.file conf$$ 2>/dev/null; then
+@@ -587,10 +578,12 @@
+ as_executable_p=as_fn_executable_p
+ 
+ # Sed expression to map a string onto a valid CPP name.
+-as_tr_cpp="eval sed 
'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
++as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
++as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
+ 
+ # Sed expression to map a string onto a valid variable name.
+-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
++as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
++as_tr_sh="eval sed '$as_sed_sh'" # deprecated
+ 
+ SHELL=${CONFIG_SHELL-/bin/sh}
+ 
+@@ -764,6 +757,7 @@
+ RANLIB
+ ac_ct_AR
+ AR
++FILECMD
+ LN_S
+ NM
+ ac_ct_DUMPBIN
+@@ -809,6 +803,8 @@
+ LDFLAGS
+ CXXFLAGS
+ CXX
++am__xargs_n
++am__rm_f_notfound
+ AM_BACKSLASH
+ AM_DEFAULT_VERBOSITY
+ AM_DEFAULT_V
+@@ -885,9 +881,11 @@
+ enable_silent_rules
+ enable_dependency_tracking
+ enable_static
++enable_pic
+ with_pic
+ enable_shared
+ enable_fast_install
++enable_aix_soname
+ with_aix_soname
+ with_gnu_ld
+ with_sysroot
+@@ -1054,7 +1052,7 @@
+     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+     # Reject names that are not valid shell variable names.
+     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
++      as_fn_error $? "invalid feature name: '$ac_useropt'"
+     ac_useropt_orig=$ac_useropt
+     ac_useropt=`printf "%s
" "$ac_useropt" | sed 's/[-+.]/_/g'`
+     case $ac_user_opts in
+@@ -1080,7 +1078,7 @@
+     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+     # Reject names that are not valid shell variable names.
+     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
++      as_fn_error $? "invalid feature name: '$ac_useropt'"
+     ac_useropt_orig=$ac_useropt
+     ac_useropt=`printf "%s
" "$ac_useropt" | sed 's/[-+.]/_/g'`
+     case $ac_user_opts in
+@@ -1293,7 +1291,7 @@
+     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+     # Reject names that are not valid shell variable names.
+     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+-      as_fn_error $? "invalid package name: \`$ac_useropt'"
++      as_fn_error $? "invalid package name: '$ac_useropt'"
+     ac_useropt_orig=$ac_useropt
+     ac_useropt=`printf "%s
" "$ac_useropt" | sed 's/[-+.]/_/g'`
+     case $ac_user_opts in
+@@ -1309,7 +1307,7 @@
+     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+     # Reject names that are not valid shell variable names.
+     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+-      as_fn_error $? "invalid package name: \`$ac_useropt'"
++      as_fn_error $? "invalid package name: '$ac_useropt'"
+     ac_useropt_orig=$ac_useropt
+     ac_useropt=`printf "%s
" "$ac_useropt" | sed 's/[-+.]/_/g'`
+     case $ac_user_opts in
+@@ -1339,8 +1337,8 @@
+   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+     x_libraries=$ac_optarg ;;
+ 
+-  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+-Try \`$0 --help' for more information"
++  -*) as_fn_error $? "unrecognized option: '$ac_option'
++Try '$0 --help' for more information"
+     ;;
+ 
+   *=*)
+@@ -1348,7 +1346,7 @@
+     # Reject names that are not valid shell variable names.
+     case $ac_envvar in #(
+       '' | [0-9]* | *[!_$as_cr_alnum]* )
+-      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
++      as_fn_error $? "invalid variable name: '$ac_envvar'" ;;
+     esac
+     eval $ac_envvar=\$ac_optarg
+     export $ac_envvar ;;
+@@ -1398,7 +1396,7 @@
+   as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+ done
+ 
+-# There might be people who depend on the old broken behavior: `$host'
++# There might be people who depend on the old broken behavior: '$host'
+ # used to hold the argument of --host etc.
+ # FIXME: To remove some day.
+ build=$build_alias
+@@ -1466,7 +1464,7 @@
+   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+   as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+ fi
+-ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
++ac_msg="sources are in $srcdir, but 'cd $srcdir' does not work"
+ ac_abs_confdir=`(
+       cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+       pwd)`
+@@ -1494,7 +1492,7 @@
+   # Omit some internal or obsolete options to make the list less imposing.
+   # This message is too long to be a string in the A/UX 3.1 sh.
+   cat <<_ACEOF
+-\`configure' configures liborcus 0.19.2 to adapt to many kinds of systems.
++'configure' configures liborcus 0.19.2 to adapt to many kinds of systems.
+ 
+ Usage: $0 [OPTION]... [VAR=VALUE]...
+ 
+@@ -1508,11 +1506,11 @@
+       --help=short        display options specific to this package
+       --help=recursive    display the short help of all the included packages
+   -V, --version           display version information and exit
+-  -q, --quiet, --silent   do not print \`checking ...' messages
++  -q, --quiet, --silent   do not print 'checking ...' messages
+       --cache-file=FILE   cache test results in FILE [disabled]
+-  -C, --config-cache      alias for \`--cache-file=config.cache'
++  -C, --config-cache      alias for '--cache-file=config.cache'
+   -n, --no-create         do not create output files
+-      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
++      --srcdir=DIR        find the sources in DIR [configure dir or '..']
+ 
+ Installation directories:
+   --prefix=PREFIX         install architecture-independent files in PREFIX
+@@ -1520,10 +1518,10 @@
+   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                           [PREFIX]
+ 
+-By default, \`make install' will install all the files in
+-\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+-an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+-for instance \`--prefix=\$HOME'.
++By default, 'make install' will install all the files in
++'$ac_default_prefix/bin', '$ac_default_prefix/lib' etc.  You can specify
++an installation prefix other than '$ac_default_prefix' using '--prefix',
++for instance '--prefix=\$HOME'.
+ 
+ For better control, use the options below.
+ 
+@@ -1580,9 +1578,14 @@
+   --disable-dependency-tracking
+                           speeds up one-time build
+   --enable-static[=PKGS]  build static libraries [default=no]
++  --enable-pic[=PKGS]     try to use only PIC/non-PIC objects [default=use
++                          both]
+   --enable-shared[=PKGS]  build shared libraries [default=yes]
+   --enable-fast-install[=PKGS]
+                           optimize for fast installation [default=yes]
++  --enable-aix-soname=aix|svr4|both
++                          shared library versioning (aka "SONAME") variant to
++                          provide on AIX, [default=aix].
+   --disable-libtool-lock  avoid locking (might break parallel builds)
+   --enable-static-boost   Prefer the static boost libraries over the shared
+                           ones [no]
+@@ -1607,11 +1610,6 @@
+ Optional Packages:
+   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+-  --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
+-                          both]
+-  --with-aix-soname=aix|svr4|both
+-                          shared library versioning (aka "SONAME") variant to
+-                          provide on AIX, [default=aix].
+   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
+   --with-sysroot[=DIR]    Search for dependent libraries within DIR (or the
+                           compiler's sysroot if not specified).
+@@ -1674,7 +1672,7 @@
+               C compiler flags for PYTHON, overriding pkg-config
+   PYTHON_LIBS linker flags for PYTHON, overriding pkg-config
+ 
+-Use these variables to override the choices made by `configure' or to help
++Use these variables to override the choices made by 'configure' or to help
+ it to find libraries and programs with nonstandard names/locations.
+ 
+ Report bugs to the package provider.
+@@ -1742,9 +1740,9 @@
+ if $ac_init_version; then
+   cat <<\_ACEOF
+ liborcus configure 0.19.2
+-generated by GNU Autoconf 2.71
++generated by GNU Autoconf 2.72
+ 
+-Copyright (C) 2021 Free Software Foundation, Inc.
++Copyright (C) 2023 Free Software Foundation, Inc.
+ This configure script is free software; the Free Software Foundation
+ gives unlimited permission to copy, distribute and modify it.
+ _ACEOF
+@@ -1783,11 +1781,12 @@
+        } && test -s conftest.$ac_objext
+ then :
+   ac_retval=0
+-else $as_nop
+-  printf "%s
" "$as_me: failed program was:" >&5
++else case e in #(
++  e) printf "%s
" "$as_me: failed program was:" >&5
+ sed 's/^/| /' conftest.$ac_ext >&5
+ 
+-      ac_retval=1
++      ac_retval=1 ;;
++esac
+ fi
+   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+   as_fn_set_status $ac_retval
+@@ -1822,11 +1821,12 @@
+        } && test -s conftest.$ac_objext
+ then :
+   ac_retval=0
+-else $as_nop
+-  printf "%s
" "$as_me: failed program was:" >&5
++else case e in #(
++  e) printf "%s
" "$as_me: failed program was:" >&5
+ sed 's/^/| /' conftest.$ac_ext >&5
+ 
+-      ac_retval=1
++      ac_retval=1 ;;
++esac
+ fi
+   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+   as_fn_set_status $ac_retval
+@@ -1860,11 +1860,12 @@
+        }
+ then :
+   ac_retval=0
+-else $as_nop
+-  printf "%s
" "$as_me: failed program was:" >&5
++else case e in #(
++  e) printf "%s
" "$as_me: failed program was:" >&5
+ sed 's/^/| /' conftest.$ac_ext >&5
+ 
+-    ac_retval=1
++    ac_retval=1 ;;
++esac
+ fi
+   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+   as_fn_set_status $ac_retval
+@@ -1902,11 +1903,12 @@
+        }
+ then :
+   ac_retval=0
+-else $as_nop
+-  printf "%s
" "$as_me: failed program was:" >&5
++else case e in #(
++  e) printf "%s
" "$as_me: failed program was:" >&5
+ sed 's/^/| /' conftest.$ac_ext >&5
+ 
+-      ac_retval=1
++      ac_retval=1 ;;
++esac
+ fi
+   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+@@ -1930,8 +1932,8 @@
+ if eval test \${$3+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++else case e in #(
++  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ $4
+ #include <$2>
+@@ -1939,10 +1941,12 @@
+ if ac_fn_c_try_compile "$LINENO"
+ then :
+   eval "$3=yes"
+-else $as_nop
+-  eval "$3=no"
++else case e in #(
++  e) eval "$3=no" ;;
++esac
+ fi
+-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
++rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
++esac
+ fi
+ eval ac_res=\$$3
+              { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+@@ -1962,15 +1966,15 @@
+ if eval test \${$3+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++else case e in #(
++  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ /* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+    For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+ #define $2 innocuous_$2
+ 
+ /* System header to define __stub macros and hopefully few prototypes,
+-   which can conflict with char $2 (); below.  */
++   which can conflict with char $2 (void); below.  */
+ 
+ #include <limits.h>
+ #undef $2
+@@ -1981,7 +1985,7 @@
+ #ifdef __cplusplus
+ extern "C"
+ #endif
+-char $2 ();
++char $2 (void);
+ /* The GNU C library defines this for functions which it implements
+     to always fail with ENOSYS.  Some functions are actually named
+     something starting with __ and the normal name is an alias.  */
+@@ -2000,11 +2004,13 @@
+ if ac_fn_c_try_link "$LINENO"
+ then :
+   eval "$3=yes"
+-else $as_nop
+-  eval "$3=no"
++else case e in #(
++  e) eval "$3=no" ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam \
+-    conftest$ac_exeext conftest.$ac_ext
++    conftest$ac_exeext conftest.$ac_ext ;;
++esac
+ fi
+ eval ac_res=\$$3
+              { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+@@ -2040,11 +2046,12 @@
+        }
+ then :
+   ac_retval=0
+-else $as_nop
+-  printf "%s
" "$as_me: failed program was:" >&5
++else case e in #(
++  e) printf "%s
" "$as_me: failed program was:" >&5
+ sed 's/^/| /' conftest.$ac_ext >&5
+ 
+-    ac_retval=1
++    ac_retval=1 ;;
++esac
+ fi
+   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+   as_fn_set_status $ac_retval
+@@ -2082,11 +2089,12 @@
+        }
+ then :
+   ac_retval=0
+-else $as_nop
+-  printf "%s
" "$as_me: failed program was:" >&5
++else case e in #(
++  e) printf "%s
" "$as_me: failed program was:" >&5
+ sed 's/^/| /' conftest.$ac_ext >&5
+ 
+-      ac_retval=1
++      ac_retval=1 ;;
++esac
+ fi
+   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+@@ -2110,8 +2118,8 @@
+ if eval test \${$3+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++else case e in #(
++  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ $4
+ #include <$2>
+@@ -2119,10 +2127,12 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+   eval "$3=yes"
+-else $as_nop
+-  eval "$3=no"
++else case e in #(
++  e) eval "$3=no" ;;
++esac
+ fi
+-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
++rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
++esac
+ fi
+ eval ac_res=\$$3
+              { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+@@ -2143,8 +2153,8 @@
+ if eval test \${$3+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  eval "$3=no"
++else case e in #(
++  e) eval "$3=no"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ $4
+@@ -2174,12 +2184,14 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+ 
+-else $as_nop
+-  eval "$3=yes"
++else case e in #(
++  e) eval "$3=yes" ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ fi
+-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
++rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
++esac
+ fi
+ eval ac_res=\$$3
+              { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+@@ -2218,12 +2230,13 @@
+   test $ac_status = 0; }; }
+ then :
+   ac_retval=0
+-else $as_nop
+-  printf "%s
" "$as_me: program exited with status $ac_status" >&5
++else case e in #(
++  e) printf "%s
" "$as_me: program exited with status $ac_status" >&5
+        printf "%s
" "$as_me: failed program was:" >&5
+ sed 's/^/| /' conftest.$ac_ext >&5
+ 
+-       ac_retval=$ac_status
++       ac_retval=$ac_status ;;
++esac
+ fi
+   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+@@ -2276,18 +2289,19 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+   ac_hi=$ac_mid; break
+-else $as_nop
+-  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
++else case e in #(
++  e) as_fn_arith $ac_mid + 1 && ac_lo=$as_val
+                       if test $ac_lo -le $ac_mid; then
+                         ac_lo= ac_hi=
+                         break
+                       fi
+-                      as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
++                      as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+   done
+-else $as_nop
+-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++else case e in #(
++  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ $4
+ int
+@@ -2322,20 +2336,23 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+   ac_lo=$ac_mid; break
+-else $as_nop
+-  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
++else case e in #(
++  e) as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
+                       if test $ac_mid -le $ac_hi; then
+                         ac_lo= ac_hi=
+                         break
+                       fi
+-                      as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
++                      as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+   done
+-else $as_nop
+-  ac_lo= ac_hi=
++else case e in #(
++  e) ac_lo= ac_hi= ;;
++esac
+ fi
+-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
++rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ # Binary search between lo and hi bounds.
+@@ -2358,8 +2375,9 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+   ac_hi=$ac_mid
+-else $as_nop
+-  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
++else case e in #(
++  e) as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ done
+@@ -2407,8 +2425,9 @@
+ if ac_fn_cxx_try_run "$LINENO"
+ then :
+   echo >>conftest.val; read $3 <conftest.val; ac_retval=0
+-else $as_nop
+-  ac_retval=1
++else case e in #(
++  e) ac_retval=1 ;;
++esac
+ fi
+ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+   conftest.$ac_objext conftest.beam conftest.$ac_ext
+@@ -2431,15 +2450,15 @@
+ if eval test \${$3+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++else case e in #(
++  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ /* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+    For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+ #define $2 innocuous_$2
+ 
+ /* System header to define __stub macros and hopefully few prototypes,
+-   which can conflict with char $2 (); below.  */
++   which can conflict with char $2 (void); below.  */
+ 
+ #include <limits.h>
+ #undef $2
+@@ -2450,7 +2469,7 @@
+ #ifdef __cplusplus
+ extern "C"
+ #endif
+-char $2 ();
++char $2 (void);
+ /* The GNU C library defines this for functions which it implements
+     to always fail with ENOSYS.  Some functions are actually named
+     something starting with __ and the normal name is an alias.  */
+@@ -2469,11 +2488,13 @@
+ if ac_fn_cxx_try_link "$LINENO"
+ then :
+   eval "$3=yes"
+-else $as_nop
+-  eval "$3=no"
++else case e in #(
++  e) eval "$3=no" ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam \
+-    conftest$ac_exeext conftest.$ac_ext
++    conftest$ac_exeext conftest.$ac_ext ;;
++esac
+ fi
+ eval ac_res=\$$3
+              { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+@@ -2506,7 +2527,7 @@
+ running configure, to aid debugging if configure makes a mistake.
+ 
+ It was created by liborcus $as_me 0.19.2, which was
+-generated by GNU Autoconf 2.71.  Invocation command line was
++generated by GNU Autoconf 2.72.  Invocation command line was
+ 
+   $ $0$ac_configure_args_raw
+ 
+@@ -2752,10 +2773,10 @@
+ printf "%s
" "$as_me: loading site script $ac_site_file" >&6;}
+     sed 's/^/| /' "$ac_site_file" >&5
+     . "$ac_site_file" \
+-      || { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+-printf "%s
" "$as_me: error: in \`$ac_pwd':" >&2;}
++      || { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
++printf "%s
" "$as_me: error: in '$ac_pwd':" >&2;}
+ as_fn_error $? "failed to load site script $ac_site_file
+-See \`config.log' for more details" "$LINENO" 5; }
++See 'config.log' for more details" "$LINENO" 5; }
+   fi
+ done
+ 
+@@ -3007,9 +3028,7 @@
+ /* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
+ struct buf { int x; };
+ struct buf * (*rcsopen) (struct buf *, struct stat *, int);
+-static char *e (p, i)
+-     char **p;
+-     int i;
++static char *e (char **p, int i)
+ {
+   return p[i];
+ }
+@@ -3023,6 +3042,21 @@
+   return s;
+ }
+ 
++/* C89 style stringification. */
++#define noexpand_stringify(a) #a
++const char *stringified = noexpand_stringify(arbitrary+token=sequence);
++
++/* C89 style token pasting.  Exercises some of the corner cases that
++   e.g. old MSVC gets wrong, but not very hard. */
++#define noexpand_concat(a,b) a##b
++#define expand_concat(a,b) noexpand_concat(a,b)
++extern int vA;
++extern int vbee;
++#define aye A
++#define bee B
++int *pvA = &expand_concat(v,aye);
++int *pvbee = &noexpand_concat(v,bee);
++
+ /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+    function prototypes and stuff, but not \xHH hex character constants.
+    These do not provoke an error unfortunately, instead are silently treated
+@@ -3050,16 +3084,19 @@
+ 
+ # Test code for whether the C compiler supports C99 (global declarations)
+ ac_c_conftest_c99_globals='
+-// Does the compiler advertise C99 conformance?
++/* Does the compiler advertise C99 conformance? */
+ #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
+ # error "Compiler does not advertise C99 conformance"
+ #endif
+ 
++// See if C++-style comments work.
++
+ #include <stdbool.h>
+ extern int puts (const char *);
+ extern int printf (const char *, ...);
+ extern int dprintf (int, const char *, ...);
+ extern void *malloc (size_t);
++extern void free (void *);
+ 
+ // Check varargs macros.  These examples are taken from C99 6.10.3.5.
+ // dprintf is used instead of fprintf to avoid needing to declare
+@@ -3109,7 +3146,6 @@
+ static inline int
+ test_restrict (ccp restrict text)
+ {
+-  // See if C++-style comments work.
+   // Iterate through items via the restricted pointer.
+   // Also check for declarations in for loops.
+   for (unsigned int i = 0; *(text+i) != '\''
+@@ -3175,6 +3211,8 @@
+   ia->datasize = 10;
+   for (int i = 0; i < ia->datasize; ++i)
+     ia->data[i] = i * 1.234;
++  // Work around memory leak warnings.
++  free (ia);
+ 
+   // Check named initializers.
+   struct named_init ni = {
+@@ -3196,7 +3234,7 @@
+ 
+ # Test code for whether the C compiler supports C11 (global declarations)
+ ac_c_conftest_c11_globals='
+-// Does the compiler advertise C11 conformance?
++/* Does the compiler advertise C11 conformance? */
+ #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
+ # error "Compiler does not advertise C11 conformance"
+ #endif
+@@ -3388,8 +3426,9 @@
+ if $as_found
+ then :
+ 
+-else $as_nop
+-  as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" 
"$LINENO" 5
++else case e in #(
++  e) as_fn_error $? "cannot find required auxiliary 
files:$ac_missing_aux_files" "$LINENO" 5 ;;
++esac
+ fi
+ 
+ 
+@@ -3417,12 +3456,12 @@
+   eval ac_new_val=\$ac_env_${ac_var}_value
+   case $ac_old_set,$ac_new_set in
+     set,)
+-      { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in 
the previous run" >&5
+-printf "%s
" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" 
>&2;}
++      { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was set to '$ac_old_val' in 
the previous run" >&5
++printf "%s
" "$as_me: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&2;}
+       ac_cache_corrupted=: ;;
+     ,set)
+-      { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous 
run" >&5
+-printf "%s
" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
++      { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was not set in the previous 
run" >&5
++printf "%s
" "$as_me: error: '$ac_var' was not set in the previous run" >&2;}
+       ac_cache_corrupted=: ;;
+     ,);;
+     *)
+@@ -3431,18 +3470,18 @@
+       ac_old_val_w=`echo x $ac_old_val`
+       ac_new_val_w=`echo x $ac_new_val`
+       if test "$ac_old_val_w" != "$ac_new_val_w"; then
+-        { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the 
previous run:" >&5
+-printf "%s
" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
++        { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' has changed since the previous 
run:" >&5
++printf "%s
" "$as_me: error: '$ac_var' has changed since the previous run:" >&2;}
+         ac_cache_corrupted=:
+       else
+-        { printf "%s
" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in 
\`$ac_var' since the previous run:" >&5
+-printf "%s
" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the 
previous run:" >&2;}
++        { printf "%s
" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in 
'$ac_var' since the previous run:" >&5
++printf "%s
" "$as_me: warning: ignoring whitespace changes in '$ac_var' since the previous 
run:" >&2;}
+         eval $ac_var=\$ac_old_val
+       fi
+-      { printf "%s
" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+-printf "%s
" "$as_me:   former value:  \`$ac_old_val'" >&2;}
+-      { printf "%s
" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+-printf "%s
" "$as_me:   current value: \`$ac_new_val'" >&2;}
++      { printf "%s
" "$as_me:${as_lineno-$LINENO}:   former value:  '$ac_old_val'" >&5
++printf "%s
" "$as_me:   former value:  '$ac_old_val'" >&2;}
++      { printf "%s
" "$as_me:${as_lineno-$LINENO}:   current value: '$ac_new_val'" >&5
++printf "%s
" "$as_me:   current value: '$ac_new_val'" >&2;}
+       fi;;
+   esac
+   # Pass precious variables to config.status.
+@@ -3458,11 +3497,11 @@
+   fi
+ done
+ if $ac_cache_corrupted; then
+-  { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+-printf "%s
" "$as_me: error: in \`$ac_pwd':" >&2;}
++  { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
++printf "%s
" "$as_me: error: in '$ac_pwd':" >&2;}
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can 
compromise the build" >&5
+ printf "%s
" "$as_me: error: changes in the environment can compromise the build" >&2;}
+-  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
++  as_fn_error $? "run '${MAKE-make} distclean' and/or 'rm $cache_file'
+           and start over" "$LINENO" 5
+ fi
+ ## -------------------- ##
+@@ -3480,7 +3519,7 @@
+ 
+ ac_config_headers="$ac_config_headers config.h"
+ 
+-am__api_version='1.16'
++am__api_version='1.18'
+ 
+ 
+ 
+@@ -3504,8 +3543,8 @@
+ if test ${ac_cv_path_install+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
++else case e in #(
++  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+ for as_dir in $PATH
+ do
+   IFS=$as_save_IFS
+@@ -3559,7 +3598,8 @@
+ IFS=$as_save_IFS
+ 
+ rm -rf conftest.one conftest.two conftest.dir
+-
++ ;;
++esac
+ fi
+   if test ${ac_cv_path_install+y}; then
+     INSTALL=$ac_cv_path_install
+@@ -3582,6 +3622,165 @@
+ 
+ test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+ 
++{ printf "%s
" "$as_me:${as_lineno-$LINENO}: checking whether sleep supports fractional 
seconds" >&5
++printf %s "checking whether sleep supports fractional seconds... " >&6; }
++if test ${am_cv_sleep_fractional_seconds+y}
++then :
++  printf %s "(cached) " >&6
++else case e in #(
++  e) if sleep 0.001 2>/dev/null
++then :
++  am_cv_sleep_fractional_seconds=yes
++else case e in #(
++  e) am_cv_sleep_fractional_seconds=no ;;
++esac
++fi
++ ;;
++esac
++fi
++{ printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_cv_sleep_fractional_seconds" >&5
++printf "%s
" "$am_cv_sleep_fractional_seconds" >&6; }
++
++{ printf "%s
" "$as_me:${as_lineno-$LINENO}: checking filesystem timestamp resolution" >&5
++printf %s "checking filesystem timestamp resolution... " >&6; }
++if test ${am_cv_filesystem_timestamp_resolution+y}
++then :
++  printf %s "(cached) " >&6
++else case e in #(
++  e) # Default to the worst case.
++am_cv_filesystem_timestamp_resolution=2
++
++# Only try to go finer than 1 sec if sleep can do it.
++# Don't try 1 sec, because if 0.01 sec and 0.1 sec don't work,
++# - 1 sec is not much of a win compared to 2 sec, and
++# - it takes 2 seconds to perform the test whether 1 sec works.
++#
++# Instead, just use the default 2s on platforms that have 1s resolution,
++# accept the extra 1s delay when using $sleep in the Automake tests, in
++# exchange for not incurring the 2s delay for running the test for all
++# packages.
++#
++am_try_resolutions=
++if test "$am_cv_sleep_fractional_seconds" = yes; then
++  # Even a millisecond often causes a bunch of false positives,
++  # so just try a hundredth of a second. The time saved between .001 and
++  # .01 is not terribly consequential.
++  am_try_resolutions="0.01 0.1 $am_try_resolutions"
++fi
++
++# In order to catch current-generation FAT out, we must *modify* files
++# that already exist; the *creation* timestamp is finer.  Use names
++# that make ls -t sort them differently when they have equal
++# timestamps than when they have distinct timestamps, keeping
++# in mind that ls -t prints the *newest* file first.
++rm -f conftest.ts?
++: > conftest.ts1
++: > conftest.ts2
++: > conftest.ts3
++
++# Make sure ls -t actually works.  Do 'set' in a subshell so we don't
++# clobber the current shell's arguments. (Outer-level square brackets
++# are removed by m4; they're present so that m4 does not expand
++# <dollar><star>; be careful, easy to get confused.)
++if (
++     set X `ls -t conftest.ts[12]` &&
++     {
++       test "$*" != "X conftest.ts1 conftest.ts2" ||
++       test "$*" != "X conftest.ts2 conftest.ts1";
++     }
++); then :; else
++  # If neither matched, then we have a broken ls.  This can happen
++  # if, for instance, CONFIG_SHELL is bash and it inherits a
++  # broken ls alias from the environment.  This has actually
++  # happened.  Such a system could not be considered "sane".
++  printf "%s
" ""Bad output from ls -t: \"`ls -t conftest.ts[12]`\""" >&5
++  { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
++printf "%s
" "$as_me: error: in '$ac_pwd':" >&2;}
++as_fn_error $? "ls -t produces unexpected output.
++Make sure there is not a broken ls alias in your environment.
++See 'config.log' for more details" "$LINENO" 5; }
++fi
++
++for am_try_res in $am_try_resolutions; do
++  # Any one fine-grained sleep might happen to cross the boundary
++  # between two values of a coarser actual resolution, but if we do
++  # two fine-grained sleeps in a row, at least one of them will fall
++  # entirely within a coarse interval.
++  echo alpha > conftest.ts1
++  sleep $am_try_res
++  echo beta > conftest.ts2
++  sleep $am_try_res
++  echo gamma > conftest.ts3
++
++  # We assume that 'ls -t' will make use of high-resolution
++  # timestamps if the operating system supports them at all.
++  if (set X `ls -t conftest.ts?` &&
++      test "$2" = conftest.ts3 &&
++      test "$3" = conftest.ts2 &&
++      test "$4" = conftest.ts1); then
++    #
++    # Ok, ls -t worked. If we're at a resolution of 1 second, we're done,
++    # because we don't need to test make.
++    make_ok=true
++    if test $am_try_res != 1; then
++      # But if we've succeeded so far with a subsecond resolution, we
++      # have one more thing to check: make. It can happen that
++      # everything else supports the subsecond mtimes, but make doesn't;
++      # notably on macOS, which ships make 3.81 from 2006 (the last one
++      # released under GPLv2). https://bugs.gnu.org/68808
++      #
++      # We test $MAKE if it is defined in the environment, else "make".
++      # It might get overridden later, but our hope is that in practice
++      # it does not matter: it is the system "make" which is (by far)
++      # the most likely to be broken, whereas if the user overrides it,
++      # probably they did so with a better, or at least not worse, make.
++      # https://lists.gnu.org/archive/html/automake/2024-06/msg00051.html
++      #
++      # Create a Makefile (real tab character here):
++      rm -f conftest.mk
++      echo 'conftest.ts1: conftest.ts2' >conftest.mk
++      echo '  touch conftest.ts2' >>conftest.mk
++      #
++      # Now, running
++      #   touch conftest.ts1; touch conftest.ts2; make
++      # should touch ts1 because ts2 is newer. This could happen by luck,
++      # but most often, it will fail if make's support is insufficient. So
++      # test for several consecutive successes.
++      #
++      # (We reuse conftest.ts[12] because we still want to modify existing
++      # files, not create new ones, per above.)
++      n=0
++      make=${MAKE-make}
++      until test $n -eq 3; do
++        echo one > conftest.ts1
++        sleep $am_try_res
++        echo two > conftest.ts2 # ts2 should now be newer than ts1
++        if $make -f conftest.mk | grep 'up to date' >/dev/null; then
++          make_ok=false
++          break # out of $n loop
++        fi
++        n=`expr $n + 1`
++      done
++    fi
++    #
++    if $make_ok; then
++      # Everything we know to check worked out, so call this resolution good.
++      am_cv_filesystem_timestamp_resolution=$am_try_res
++      break # out of $am_try_res loop
++    fi
++    # Otherwise, we'll go on to check the next resolution.
++  fi
++done
++rm -f conftest.ts?
++# (end _am_filesystem_timestamp_resolution)
++ ;;
++esac
++fi
++{ printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_cv_filesystem_timestamp_resolution" 
>&5
++printf "%s
" "$am_cv_filesystem_timestamp_resolution" >&6; }
++
++# This check should not be cached, as it may vary across builds of
++# different projects.
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
+ printf %s "checking whether build environment is sane... " >&6; }
+ # Reject unsafe characters in $srcdir or the absolute working directory
+@@ -3590,10 +3789,14 @@
+ '
+ case `pwd` in
+   *[\\"\#\$\&\'\`$am_lf]*)
++    { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: no" >&5
++printf "%s
" "no" >&6; }
+     as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
+ esac
+ case $srcdir in
+   *[\\"\#\$\&\'\`$am_lf\ \    ]*)
++    { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: no" >&5
++printf "%s
" "no" >&6; }
+     as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
+ esac
+ 
+@@ -3602,49 +3805,45 @@
+ # symlink; some systems play weird games with the mod time of symlinks
+ # (eg FreeBSD returns the mod time of the symlink's containing
+ # directory).
+-if (
+-   am_has_slept=no
+-   for am_try in 1 2; do
+-     echo "timestamp, slept: $am_has_slept" > conftest.file
+-     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+-     if test "$*" = "X"; then
+-      # -L didn't work.
+-      set X `ls -t "$srcdir/configure" conftest.file`
+-     fi
+-     if test "$*" != "X $srcdir/configure conftest.file" \
+-      && test "$*" != "X conftest.file $srcdir/configure"; then
++am_build_env_is_sane=no
++am_has_slept=no
++rm -f conftest.file
++for am_try in 1 2; do
++  echo "timestamp, slept: $am_has_slept" > conftest.file
++  if (
++    set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
++    if test "$*" = "X"; then
++      # -L didn't work.
++      set X `ls -t "$srcdir/configure" conftest.file`
++    fi
++    test "$2" = conftest.file
++  ); then
++    am_build_env_is_sane=yes
++    break
++  fi
++  # Just in case.
++  sleep "$am_cv_filesystem_timestamp_resolution"
++  am_has_slept=yes
++done
+ 
+-      # If neither matched, then we have a broken ls.  This can happen
+-      # if, for instance, CONFIG_SHELL is bash and it inherits a
+-      # broken ls alias from the environment.  This has actually
+-      # happened.  Such a system could not be considered "sane".
+-      as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
+-  alias in your environment" "$LINENO" 5
+-     fi
+-     if test "$2" = conftest.file || test $am_try -eq 2; then
+-       break
+-     fi
+-     # Just in case.
+-     sleep 1
+-     am_has_slept=yes
+-   done
+-   test "$2" = conftest.file
+-   )
+-then
+-   # Ok.
+-   :
+-else
+-   as_fn_error $? "newly created file is older than distributed files!
++{ printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_build_env_is_sane" >&5
++printf "%s
" "$am_build_env_is_sane" >&6; }
++if test "$am_build_env_is_sane" = no; then
++  as_fn_error $? "newly created file is older than distributed files!
+ Check your system clock" "$LINENO" 5
+ fi
+-{ printf "%s
" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+-printf "%s
" "yes" >&6; }
++
+ # If we didn't sleep, we still need to ensure time stamps of config.status and
+ # generated files are strictly newer.
+ am_sleep_pid=
+-if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+-  ( sleep 1 ) &
++if test -e conftest.file || grep 'slept: no' conftest.file >/dev/null 2>&1
++then :
++
++else case e in #(
++  e)   ( sleep "$am_cv_filesystem_timestamp_resolution" ) &
+   am_sleep_pid=$!
++ ;;
++esac
+ fi
+ 
+ rm -f conftest.file
+@@ -3655,7 +3854,7 @@
+ test "$program_suffix" != NONE &&
+   program_transform_name="s&\$&$program_suffix&;$program_transform_name"
+ # Double any \ or $.
+-# By default was `s,x,x', remove it if useless.
++# By default was 's,x,x', remove it if useless.
+ ac_script='s/[\$]/&&/g;s/;s,x,x,$//'
+ program_transform_name=`printf "%s
" "$program_transform_name" | sed "$ac_script"`
+ 
+@@ -3698,8 +3897,8 @@
+ if test ${ac_cv_prog_STRIP+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$STRIP"; then
++else case e in #(
++  e) if test -n "$STRIP"; then
+   ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -3721,7 +3920,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ STRIP=$ac_cv_prog_STRIP
+ if test -n "$STRIP"; then
+@@ -3743,8 +3943,8 @@
+ if test ${ac_cv_prog_ac_ct_STRIP+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$ac_ct_STRIP"; then
++else case e in #(
++  e) if test -n "$ac_ct_STRIP"; then
+   ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -3766,7 +3966,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+ if test -n "$ac_ct_STRIP"; then
+@@ -3802,8 +4003,8 @@
+   if test ${ac_cv_path_mkdir+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
++else case e in #(
++  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+ for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+ do
+   IFS=$as_save_IFS
+@@ -3817,7 +4018,7 @@
+          as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext" || continue
+          case `"$as_dir$ac_prog$ac_exec_ext" --version 2>&1` in #(
+            'mkdir ('*'coreutils) '* | \
+-           'BusyBox '* | \
++           *'BusyBox '* | \
+            'mkdir (fileutils) '4.1*)
+              ac_cv_path_mkdir=$as_dir$ac_prog$ac_exec_ext
+              break 3;;
+@@ -3826,18 +4027,17 @@
+        done
+   done
+ IFS=$as_save_IFS
+-
++ ;;
++esac
+ fi
+ 
+   test -d ./--version && rmdir ./--version
+   if test ${ac_cv_path_mkdir+y}; then
+     MKDIR_P="$ac_cv_path_mkdir -p"
+   else
+-    # As a last resort, use the slow shell script.  Don't cache a
+-    # value for MKDIR_P within a source directory, because that will
+-    # break other packages using the cache if that directory is
+-    # removed, or if the value is a relative name.
+-    MKDIR_P="$ac_install_sh -d"
++    # As a last resort, use plain mkdir -p,
++    # in the hope it doesn't have the bugs of ancient mkdir.
++    MKDIR_P='mkdir -p'
+   fi
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
+@@ -3852,8 +4052,8 @@
+ if test ${ac_cv_prog_AWK+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$AWK"; then
++else case e in #(
++  e) if test -n "$AWK"; then
+   ac_cv_prog_AWK="$AWK" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -3875,7 +4075,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ AWK=$ac_cv_prog_AWK
+ if test -n "$AWK"; then
+@@ -3897,8 +4098,8 @@
+ if eval test \${ac_cv_prog_make_${ac_make}_set+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  cat >conftest.make <<\_ACEOF
++else case e in #(
++  e) cat >conftest.make <<\_ACEOF
+ SHELL = /bin/sh
+ all:
+       @echo '@@@%%%=$(MAKE)=@@@%%%'
+@@ -3910,7 +4111,8 @@
+   *)
+     eval ac_cv_prog_make_${ac_make}_set=no;;
+ esac
+-rm -f conftest.make
++rm -f conftest.make ;;
++esac
+ fi
+ if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+@@ -3931,25 +4133,21 @@
+ fi
+ rmdir .tst 2>/dev/null
+ 
++AM_DEFAULT_VERBOSITY=1
+ # Check whether --enable-silent-rules was given.
+ if test ${enable_silent_rules+y}
+ then :
+   enableval=$enable_silent_rules;
+ fi
+ 
+-case $enable_silent_rules in # (((
+-  yes) AM_DEFAULT_VERBOSITY=0;;
+-   no) AM_DEFAULT_VERBOSITY=1;;
+-    *) AM_DEFAULT_VERBOSITY=1;;
+-esac
+ am_make=${MAKE-make}
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested 
variables" >&5
+ printf %s "checking whether $am_make supports nested variables... " >&6; }
+ if test ${am_cv_make_support_nested_variables+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if printf "%s
" 'TRUE=$(BAR$(V))
++else case e in #(
++  e) if printf "%s
" 'TRUE=$(BAR$(V))
+ BAR0=false
+ BAR1=true
+ V=1
+@@ -3959,19 +4157,50 @@
+   am_cv_make_support_nested_variables=yes
+ else
+   am_cv_make_support_nested_variables=no
+-fi
++fi ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" 
>&5
+ printf "%s
" "$am_cv_make_support_nested_variables" >&6; }
+-if test $am_cv_make_support_nested_variables = yes; then
+-    AM_V='$(V)'
+-  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+-else
+-  AM_V=$AM_DEFAULT_VERBOSITY
+-  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+-fi
+ AM_BACKSLASH='\'
+ 
++am__rm_f_notfound=
++if (rm -f && rm -fr && rm -rf) 2>/dev/null
++then :
++
++else case e in #(
++  e) am__rm_f_notfound='""' ;;
++esac
++fi
++
++
++{ printf "%s
" "$as_me:${as_lineno-$LINENO}: checking xargs -n works" >&5
++printf %s "checking xargs -n works... " >&6; }
++if test ${am_cv_xargs_n_works+y}
++then :
++  printf %s "(cached) " >&6
++else case e in #(
++  e) if test "`echo 1 2 3 | xargs -n2 echo`" = "1 2
++3"
++then :
++  am_cv_xargs_n_works=yes
++else case e in #(
++  e) am_cv_xargs_n_works=no ;;
++esac
++fi ;;
++esac
++fi
++{ printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_cv_xargs_n_works" >&5
++printf "%s
" "$am_cv_xargs_n_works" >&6; }
++if test "$am_cv_xargs_n_works" = yes
++then :
++  am__xargs_n='xargs -n'
++else case e in #(
++  e)   am__xargs_n='am__xargs_n () { shift; sed "s/ /\n/g" | while read 
am__xargs_n_arg; do "" "$am__xargs_n_arg"; done; }'
++ ;;
++esac
++fi
++
+ if test "`cd $srcdir && pwd`" != "`pwd`"; then
+   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+   # is not polluted with repeated "-I."
+@@ -4032,9 +4261,133 @@
+ 
+ 
+ # We'll loop over all known methods to create a tar archive until one works.
+-_am_tools='gnutar  pax cpio none'
++_am_tools='gnutar plaintar pax cpio none'
+ 
+-am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
++# The POSIX 1988 'ustar' format is defined with fixed-size fields.
++      # There is notably a 21 bits limit for the UID and the GID.  In fact,
++      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
++      # and bug#13588).
++      am_max_uid=2097151 # 2^21 - 1
++      am_max_gid=$am_max_uid
++      # The $UID and $GID variables are not portable, so we need to resort
++      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
++      # below are definitely unexpected, so allow the users to see them
++      # (that is, avoid stderr redirection).
++      am_uid=`id -u || echo unknown`
++      am_gid=`id -g || echo unknown`
++      { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking whether UID '$am_uid' is supported by 
ustar format" >&5
++printf %s "checking whether UID '$am_uid' is supported by ustar format... " 
>&6; }
++      if test x$am_uid = xunknown; then
++        { printf "%s
" "$as_me:${as_lineno-$LINENO}: WARNING: ancient id detected; assuming current 
UID is ok, but dist-ustar might not work" >&5
++printf "%s
" "$as_me: WARNING: ancient id detected; assuming current UID is ok, but 
dist-ustar might not work" >&2;}
++      elif test $am_uid -le $am_max_uid; then
++        { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
++printf "%s
" "yes" >&6; }
++      else
++        { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: no" >&5
++printf "%s
" "no" >&6; }
++        _am_tools=none
++      fi
++      { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking whether GID '$am_gid' is supported by 
ustar format" >&5
++printf %s "checking whether GID '$am_gid' is supported by ustar format... " 
>&6; }
++      if test x$gm_gid = xunknown; then
++        { printf "%s
" "$as_me:${as_lineno-$LINENO}: WARNING: ancient id detected; assuming current 
GID is ok, but dist-ustar might not work" >&5
++printf "%s
" "$as_me: WARNING: ancient id detected; assuming current GID is ok, but 
dist-ustar might not work" >&2;}
++      elif test $am_gid -le $am_max_gid; then
++        { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
++printf "%s
" "yes" >&6; }
++      else
++        { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: no" >&5
++printf "%s
" "no" >&6; }
++        _am_tools=none
++      fi
++
++  { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking how to create a ustar tar archive" >&5
++printf %s "checking how to create a ustar tar archive... " >&6; }
++
++  # Go ahead even if we have the value already cached.  We do so because we
++  # need to set the values for the 'am__tar' and 'am__untar' variables.
++  _am_tools=${am_cv_prog_tar_ustar-$_am_tools}
++
++  for _am_tool in $_am_tools; do
++    case $_am_tool in
++    gnutar)
++      for _am_tar in tar gnutar gtar; do
++        { echo "$as_me:$LINENO: $_am_tar --version" >&5
++   ($_am_tar --version) >&5 2>&5
++   ac_status=$?
++   echo "$as_me:$LINENO: \$? = $ac_status" >&5
++   (exit $ac_status); } && break
++      done
++      am__tar="$_am_tar --format=ustar -chf - "'"$$tardir"'
++      am__tar_="$_am_tar --format=ustar -chf - "'"$tardir"'
++      am__untar="$_am_tar -xf -"
++      ;;
++    plaintar)
++      # Must skip GNU tar: if it does not support --format= it doesn't create
++      # ustar tarball either.
++      (tar --version) >/dev/null 2>&1 && continue
++      am__tar='tar chf - "$$tardir"'
++      am__tar_='tar chf - "$tardir"'
++      am__untar='tar xf -'
++      ;;
++    pax)
++      am__tar='pax -L -x ustar -w "$$tardir"'
++      am__tar_='pax -L -x ustar -w "$tardir"'
++      am__untar='pax -r'
++      ;;
++    cpio)
++      am__tar='find "$$tardir" -print | cpio -o -H ustar -L'
++      am__tar_='find "$tardir" -print | cpio -o -H ustar -L'
++      am__untar='cpio -i -H ustar -d'
++      ;;
++    none)
++      am__tar=false
++      am__tar_=false
++      am__untar=false
++      ;;
++    esac
++
++    # If the value was cached, stop now.  We just wanted to have am__tar
++    # and am__untar set.
++    test -n "${am_cv_prog_tar_ustar}" && break
++
++    # tar/untar a dummy directory, and stop if the command works.
++    rm -rf conftest.dir
++    mkdir conftest.dir
++    echo GrepMe > conftest.dir/file
++    { echo "$as_me:$LINENO: tardir=conftest.dir && eval $am__tar_ 
>conftest.tar" >&5
++   (tardir=conftest.dir && eval $am__tar_ >conftest.tar) >&5 2>&5
++   ac_status=$?
++   echo "$as_me:$LINENO: \$? = $ac_status" >&5
++   (exit $ac_status); }
++    rm -rf conftest.dir
++    if test -s conftest.tar; then
++      { echo "$as_me:$LINENO: $am__untar <conftest.tar" >&5
++   ($am__untar <conftest.tar) >&5 2>&5
++   ac_status=$?
++   echo "$as_me:$LINENO: \$? = $ac_status" >&5
++   (exit $ac_status); }
++      { echo "$as_me:$LINENO: cat conftest.dir/file" >&5
++   (cat conftest.dir/file) >&5 2>&5
++   ac_status=$?
++   echo "$as_me:$LINENO: \$? = $ac_status" >&5
++   (exit $ac_status); }
++      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
++    fi
++  done
++  rm -rf conftest.dir
++
++  if test ${am_cv_prog_tar_ustar+y}
++then :
++  printf %s "(cached) " >&6
++else case e in #(
++  e) am_cv_prog_tar_ustar=$_am_tool ;;
++esac
++fi
++
++  { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_tar_ustar" >&5
++printf "%s
" "$am_cv_prog_tar_ustar" >&6; }
+ 
+ 
+ 
+@@ -4055,88 +4408,13 @@
+ 
+ 
+ 
+-# POSIX will say in a future version that running "rm -f" with no argument
+-# is OK; and we want to be able to make that assumption in our Makefile
+-# recipes.  So use an aggressive probe to check that the usage we want is
+-# actually supported "in the wild" to an acceptable degree.
+-# See automake bug#10828.
+-# To make any issue more visible, cause the running configure to be aborted
+-# by default if the 'rm' program in use doesn't match our expectations; the
+-# user can still override this though.
+-if rm -f && rm -fr && rm -rf; then : OK; else
+-  cat >&2 <<'END'
+-Oops!
+-
+-Your 'rm' program seems unable to run without file operands specified
+-on the command line, even when the '-f' option is present.  This is contrary
+-to the behaviour of most rm programs out there, and not conforming with
+-the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
+-
+-Please tell [email protected] about your system, including the value
+-of your $PATH and any error possibly output before this message.  This
+-can help us improve future automake versions.
+ 
+-END
+-  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+-    echo 'Configuration will proceed anyway, since you have set the' >&2
+-    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+-    echo >&2
+-  else
+-    cat >&2 <<'END'
+-Aborting the configuration process, to ensure you take notice of the issue.
+-
+-You can download and install GNU coreutils to get an 'rm' implementation
+-that behaves properly: <https://www.gnu.org/software/coreutils/>.
+-
+-If you want to complete the configuration process using your problematic
+-'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+-to "yes", and re-run configure.
+ 
+-END
+-    as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5
+-  fi
+-fi
+ 
+-# Check whether --enable-silent-rules was given.
+-if test ${enable_silent_rules+y}
+-then :
+-  enableval=$enable_silent_rules;
+-fi
+ 
+-case $enable_silent_rules in # (((
+-  yes) AM_DEFAULT_VERBOSITY=0;;
+-   no) AM_DEFAULT_VERBOSITY=1;;
+-    *) AM_DEFAULT_VERBOSITY=0;;
+-esac
+-am_make=${MAKE-make}
+-{ printf "%s
" "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested 
variables" >&5
+-printf %s "checking whether $am_make supports nested variables... " >&6; }
+-if test ${am_cv_make_support_nested_variables+y}
+-then :
+-  printf %s "(cached) " >&6
+-else $as_nop
+-  if printf "%s
" 'TRUE=$(BAR$(V))
+-BAR0=false
+-BAR1=true
+-V=1
+-am__doit:
+-      @$(TRUE)
+-.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+-  am_cv_make_support_nested_variables=yes
+-else
+-  am_cv_make_support_nested_variables=no
+-fi
+-fi
+-{ printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" 
>&5
+-printf "%s
" "$am_cv_make_support_nested_variables" >&6; }
+-if test $am_cv_make_support_nested_variables = yes; then
+-    AM_V='$(V)'
+-  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+-else
+-  AM_V=$AM_DEFAULT_VERBOSITY
+-  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+-fi
+-AM_BACKSLASH='\'
++
++AM_DEFAULT_VERBOSITY=0
++
+ 
+ ac_ext=cpp
+ ac_cpp='$CXXCPP $CPPFLAGS'
+@@ -4233,8 +4511,8 @@
+ if test ${ac_cv_prog_CXX+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$CXX"; then
++else case e in #(
++  e) if test -n "$CXX"; then
+   ac_cv_prog_CXX="$CXX" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -4256,7 +4534,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ CXX=$ac_cv_prog_CXX
+ if test -n "$CXX"; then
+@@ -4282,8 +4561,8 @@
+ if test ${ac_cv_prog_ac_ct_CXX+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$ac_ct_CXX"; then
++else case e in #(
++  e) if test -n "$ac_ct_CXX"; then
+   ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -4305,7 +4584,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+ if test -n "$ac_ct_CXX"; then
+@@ -4405,8 +4685,8 @@
+   printf "%s
" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+   test $ac_status = 0; }
+ then :
+-  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+-# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
++  # Autoconf-2.13 could set the ac_cv_exeext variable to 'no'.
++# So ignore a value of 'no', otherwise this would lead to 'EXEEXT = no'
+ # in a Makefile.  We should not override ac_cv_exeext if it was cached,
+ # so that the user can short-circuit this test for compilers unknown to
+ # Autoconf.
+@@ -4426,7 +4706,7 @@
+          ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+       fi
+       # We set ac_cv_exeext here because the later test for it is not
+-      # safe: cross compilers may not add the suffix if given an `-o'
++      # safe: cross compilers may not add the suffix if given an '-o'
+       # argument, so we may need to know it at that point already.
+       # Even if this section looks crufty: it has the advantage of
+       # actually working.
+@@ -4437,8 +4717,9 @@
+ done
+ test "$ac_cv_exeext" = no && ac_cv_exeext=
+ 
+-else $as_nop
+-  ac_file=''
++else case e in #(
++  e) ac_file='' ;;
++esac
+ fi
+ if test -z "$ac_file"
+ then :
+@@ -4447,13 +4728,14 @@
+ printf "%s
" "$as_me: failed program was:" >&5
+ sed 's/^/| /' conftest.$ac_ext >&5
+ 
+-{ { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+-printf "%s
" "$as_me: error: in \`$ac_pwd':" >&2;}
++{ { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
++printf "%s
" "$as_me: error: in '$ac_pwd':" >&2;}
+ as_fn_error 77 "C++ compiler cannot create executables
+-See \`config.log' for more details" "$LINENO" 5; }
+-else $as_nop
+-  { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+-printf "%s
" "yes" >&6; }
++See 'config.log' for more details" "$LINENO" 5; }
++else case e in #(
++  e) { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
++printf "%s
" "yes" >&6; } ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking for C++ compiler default output file 
name" >&5
+ printf %s "checking for C++ compiler default output file name... " >&6; }
+@@ -4477,10 +4759,10 @@
+   printf "%s
" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+   test $ac_status = 0; }
+ then :
+-  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+-# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+-# work properly (i.e., refer to `conftest.exe'), while it won't with
+-# `rm'.
++  # If both 'conftest.exe' and 'conftest' are 'present' (well, observable)
++# catch 'conftest.exe'.  For instance with Cygwin, 'ls conftest' will
++# work properly (i.e., refer to 'conftest.exe'), while it won't with
++# 'rm'.
+ for ac_file in conftest.exe conftest conftest.*; do
+   test -f "$ac_file" || continue
+   case $ac_file in
+@@ -4490,11 +4772,12 @@
+     * ) break;;
+   esac
+ done
+-else $as_nop
+-  { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+-printf "%s
" "$as_me: error: in \`$ac_pwd':" >&2;}
++else case e in #(
++  e) { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
++printf "%s
" "$as_me: error: in '$ac_pwd':" >&2;}
+ as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+-See \`config.log' for more details" "$LINENO" 5; }
++See 'config.log' for more details" "$LINENO" 5; } ;;
++esac
+ fi
+ rm -f conftest conftest$ac_cv_exeext
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+@@ -4510,6 +4793,8 @@
+ main (void)
+ {
+ FILE *f = fopen ("conftest.out", "w");
++ if (!f)
++  return 1;
+  return ferror (f) || fclose (f) != 0;
+ 
+   ;
+@@ -4549,26 +4834,27 @@
+     if test "$cross_compiling" = maybe; then
+       cross_compiling=yes
+     else
+-      { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+-printf "%s
" "$as_me: error: in \`$ac_pwd':" >&2;}
++      { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
++printf "%s
" "$as_me: error: in '$ac_pwd':" >&2;}
+ as_fn_error 77 "cannot run C++ compiled programs.
+-If you meant to cross compile, use \`--host'.
+-See \`config.log' for more details" "$LINENO" 5; }
++If you meant to cross compile, use '--host'.
++See 'config.log' for more details" "$LINENO" 5; }
+     fi
+   fi
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+ printf "%s
" "$cross_compiling" >&6; }
+ 
+-rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
++rm -f conftest.$ac_ext conftest$ac_cv_exeext \
++  conftest.o conftest.obj conftest.out
+ ac_clean_files=$ac_clean_files_save
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+ printf %s "checking for suffix of object files... " >&6; }
+ if test ${ac_cv_objext+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++else case e in #(
++  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+ int
+@@ -4600,16 +4886,18 @@
+        break;;
+   esac
+ done
+-else $as_nop
+-  printf "%s
" "$as_me: failed program was:" >&5
++else case e in #(
++  e) printf "%s
" "$as_me: failed program was:" >&5
+ sed 's/^/| /' conftest.$ac_ext >&5
+ 
+-{ { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+-printf "%s
" "$as_me: error: in \`$ac_pwd':" >&2;}
++{ { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
++printf "%s
" "$as_me: error: in '$ac_pwd':" >&2;}
+ as_fn_error $? "cannot compute suffix of object files: cannot compile
+-See \`config.log' for more details" "$LINENO" 5; }
++See 'config.log' for more details" "$LINENO" 5; } ;;
++esac
+ fi
+-rm -f conftest.$ac_cv_objext conftest.$ac_ext
++rm -f conftest.$ac_cv_objext conftest.$ac_ext ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+ printf "%s
" "$ac_cv_objext" >&6; }
+@@ -4620,8 +4908,8 @@
+ if test ${ac_cv_cxx_compiler_gnu+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++else case e in #(
++  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+ int
+@@ -4638,12 +4926,14 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+   ac_compiler_gnu=yes
+-else $as_nop
+-  ac_compiler_gnu=no
++else case e in #(
++  e) ac_compiler_gnu=no ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+-
++ ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+ printf "%s
" "$ac_cv_cxx_compiler_gnu" >&6; }
+@@ -4661,8 +4951,8 @@
+ if test ${ac_cv_prog_cxx_g+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
++else case e in #(
++  e) ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+    ac_cxx_werror_flag=yes
+    ac_cv_prog_cxx_g=no
+    CXXFLAGS="-g"
+@@ -4680,8 +4970,8 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+   ac_cv_prog_cxx_g=yes
+-else $as_nop
+-  CXXFLAGS=""
++else case e in #(
++  e) CXXFLAGS=""
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+@@ -4696,8 +4986,8 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+ 
+-else $as_nop
+-  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
++else case e in #(
++  e) ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+        CXXFLAGS="-g"
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -4714,12 +5004,15 @@
+ then :
+   ac_cv_prog_cxx_g=yes
+ fi
+-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
++rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
++esac
+ fi
+-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
++rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+-   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
++   ac_cxx_werror_flag=$ac_save_cxx_werror_flag ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+ printf "%s
" "$ac_cv_prog_cxx_g" >&6; }
+@@ -4743,11 +5036,11 @@
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++11 
features" >&5
+ printf %s "checking for $CXX option to enable C++11 features... " >&6; }
+-if test ${ac_cv_prog_cxx_11+y}
++if test ${ac_cv_prog_cxx_cxx11+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_cv_prog_cxx_11=no
++else case e in #(
++  e) ac_cv_prog_cxx_cxx11=no
+ ac_save_CXX=$CXX
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -4764,36 +5057,39 @@
+   test "x$ac_cv_prog_cxx_cxx11" != "xno" && break
+ done
+ rm -f conftest.$ac_ext
+-CXX=$ac_save_CXX
++CXX=$ac_save_CXX ;;
++esac
+ fi
+ 
+ if test "x$ac_cv_prog_cxx_cxx11" = xno
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+ printf "%s
" "unsupported" >&6; }
+-else $as_nop
+-  if test "x$ac_cv_prog_cxx_cxx11" = x
++else case e in #(
++  e) if test "x$ac_cv_prog_cxx_cxx11" = x
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+ printf "%s
" "none needed" >&6; }
+-else $as_nop
+-  { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
++else case e in #(
++  e) { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
+ printf "%s
" "$ac_cv_prog_cxx_cxx11" >&6; }
+-     CXX="$CXX $ac_cv_prog_cxx_cxx11"
++     CXX="$CXX $ac_cv_prog_cxx_cxx11" ;;
++esac
+ fi
+   ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11
+-  ac_prog_cxx_stdcxx=cxx11
++  ac_prog_cxx_stdcxx=cxx11 ;;
++esac
+ fi
+ fi
+ if test x$ac_prog_cxx_stdcxx = xno
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++98 
features" >&5
+ printf %s "checking for $CXX option to enable C++98 features... " >&6; }
+-if test ${ac_cv_prog_cxx_98+y}
++if test ${ac_cv_prog_cxx_cxx98+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_cv_prog_cxx_98=no
++else case e in #(
++  e) ac_cv_prog_cxx_cxx98=no
+ ac_save_CXX=$CXX
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -4810,25 +5106,28 @@
+   test "x$ac_cv_prog_cxx_cxx98" != "xno" && break
+ done
+ rm -f conftest.$ac_ext
+-CXX=$ac_save_CXX
++CXX=$ac_save_CXX ;;
++esac
+ fi
+ 
+ if test "x$ac_cv_prog_cxx_cxx98" = xno
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+ printf "%s
" "unsupported" >&6; }
+-else $as_nop
+-  if test "x$ac_cv_prog_cxx_cxx98" = x
++else case e in #(
++  e) if test "x$ac_cv_prog_cxx_cxx98" = x
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+ printf "%s
" "none needed" >&6; }
+-else $as_nop
+-  { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
++else case e in #(
++  e) { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
+ printf "%s
" "$ac_cv_prog_cxx_cxx98" >&6; }
+-     CXX="$CXX $ac_cv_prog_cxx_cxx98"
++     CXX="$CXX $ac_cv_prog_cxx_cxx98" ;;
++esac
+ fi
+   ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98
+-  ac_prog_cxx_stdcxx=cxx98
++  ac_prog_cxx_stdcxx=cxx98 ;;
++esac
+ fi
+ fi
+ 
+@@ -4845,8 +5144,8 @@
+ if test ${am_cv_CXX_dependencies_compiler_type+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
++else case e in #(
++  e) if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+   # We make a subdir and do the tests there.  Otherwise we can end up
+   # making bogus files that we don't know about and never remove.  For
+   # instance it was reported that on HP-UX the gcc test will end up
+@@ -4933,7 +5232,7 @@
+       # icc doesn't choke on unknown options, it will just issue warnings
+       # or remarks (even with -Werror).  So we grep stderr for any message
+       # that says an option was ignored or not supported.
+-      # When given -MP, icc 7.0 and 7.1 complain thusly:
++      # When given -MP, icc 7.0 and 7.1 complain thus:
+       #   icc: Command line warning: ignoring option '-M'; no argument 
required
+       # The diagnosis changed in icc 8.0:
+       #   icc: Command line remark: option '-MP' not supported
+@@ -4950,7 +5249,8 @@
+ else
+   am_cv_CXX_dependencies_compiler_type=none
+ fi
+-
++ ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_cv_CXX_dependencies_compiler_type" 
>&5
+ printf "%s
" "$am_cv_CXX_dependencies_compiler_type" >&6; }
+@@ -4981,14 +5281,14 @@
+     if test x$ac_success = xno; then
+                 for alternative in ${ax_cxx_compile_alternatives}; do
+       for switch in -std=c++${alternative} +std=c++${alternative} "-h 
std=c++${alternative}"; do
+-        cachevar=`printf "%s
" "ax_cv_cxx_compile_cxx17_$switch" | $as_tr_sh`
++        cachevar=`printf "%s
" "ax_cv_cxx_compile_cxx17_$switch" | sed "$as_sed_sh"`
+         { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++17 features 
with $switch" >&5
+ printf %s "checking whether $CXX supports C++17 features with $switch... " 
>&6; }
+ if eval test \${$cachevar+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_save_CXX="$CXX"
++else case e in #(
++  e) ac_save_CXX="$CXX"
+            CXX="$CXX $switch"
+            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -5782,11 +6082,13 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+   eval $cachevar=yes
+-else $as_nop
+-  eval $cachevar=no
++else case e in #(
++  e) eval $cachevar=no ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+-           CXX="$ac_save_CXX"
++           CXX="$ac_save_CXX" ;;
++esac
+ fi
+ eval ac_res=\$$cachevar
+              { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+@@ -5855,8 +6157,8 @@
+ if test ${ac_cv_prog_CC+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$CC"; then
++else case e in #(
++  e) if test -n "$CC"; then
+   ac_cv_prog_CC="$CC" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -5878,7 +6180,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ CC=$ac_cv_prog_CC
+ if test -n "$CC"; then
+@@ -5900,8 +6203,8 @@
+ if test ${ac_cv_prog_ac_ct_CC+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$ac_ct_CC"; then
++else case e in #(
++  e) if test -n "$ac_ct_CC"; then
+   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -5923,7 +6226,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ ac_ct_CC=$ac_cv_prog_ac_ct_CC
+ if test -n "$ac_ct_CC"; then
+@@ -5958,8 +6262,8 @@
+ if test ${ac_cv_prog_CC+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$CC"; then
++else case e in #(
++  e) if test -n "$CC"; then
+   ac_cv_prog_CC="$CC" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -5981,7 +6285,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ CC=$ac_cv_prog_CC
+ if test -n "$CC"; then
+@@ -6003,8 +6308,8 @@
+ if test ${ac_cv_prog_CC+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$CC"; then
++else case e in #(
++  e) if test -n "$CC"; then
+   ac_cv_prog_CC="$CC" # Let the user override the test.
+ else
+   ac_prog_rejected=no
+@@ -6043,7 +6348,8 @@
+     ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
+   fi
+ fi
+-fi
++fi ;;
++esac
+ fi
+ CC=$ac_cv_prog_CC
+ if test -n "$CC"; then
+@@ -6067,8 +6373,8 @@
+ if test ${ac_cv_prog_CC+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$CC"; then
++else case e in #(
++  e) if test -n "$CC"; then
+   ac_cv_prog_CC="$CC" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -6090,7 +6396,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ CC=$ac_cv_prog_CC
+ if test -n "$CC"; then
+@@ -6116,8 +6423,8 @@
+ if test ${ac_cv_prog_ac_ct_CC+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$ac_ct_CC"; then
++else case e in #(
++  e) if test -n "$ac_ct_CC"; then
+   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -6139,7 +6446,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ ac_ct_CC=$ac_cv_prog_ac_ct_CC
+ if test -n "$ac_ct_CC"; then
+@@ -6177,8 +6485,8 @@
+ if test ${ac_cv_prog_CC+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$CC"; then
++else case e in #(
++  e) if test -n "$CC"; then
+   ac_cv_prog_CC="$CC" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -6200,7 +6508,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ CC=$ac_cv_prog_CC
+ if test -n "$CC"; then
+@@ -6222,8 +6531,8 @@
+ if test ${ac_cv_prog_ac_ct_CC+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$ac_ct_CC"; then
++else case e in #(
++  e) if test -n "$ac_ct_CC"; then
+   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -6245,7 +6554,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ ac_ct_CC=$ac_cv_prog_ac_ct_CC
+ if test -n "$ac_ct_CC"; then
+@@ -6274,10 +6584,10 @@
+ fi
+ 
+ 
+-test -z "$CC" && { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+-printf "%s
" "$as_me: error: in \`$ac_pwd':" >&2;}
++test -z "$CC" && { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
++printf "%s
" "$as_me: error: in '$ac_pwd':" >&2;}
+ as_fn_error $? "no acceptable C compiler found in \$PATH
+-See \`config.log' for more details" "$LINENO" 5; }
++See 'config.log' for more details" "$LINENO" 5; }
+ 
+ # Provide some information about the compiler.
+ printf "%s
" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+@@ -6309,8 +6619,8 @@
+ if test ${ac_cv_c_compiler_gnu+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++else case e in #(
++  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+ int
+@@ -6327,12 +6637,14 @@
+ if ac_fn_c_try_compile "$LINENO"
+ then :
+   ac_compiler_gnu=yes
+-else $as_nop
+-  ac_compiler_gnu=no
++else case e in #(
++  e) ac_compiler_gnu=no ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ ac_cv_c_compiler_gnu=$ac_compiler_gnu
+-
++ ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+ printf "%s
" "$ac_cv_c_compiler_gnu" >&6; }
+@@ -6350,8 +6662,8 @@
+ if test ${ac_cv_prog_cc_g+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_save_c_werror_flag=$ac_c_werror_flag
++else case e in #(
++  e) ac_save_c_werror_flag=$ac_c_werror_flag
+    ac_c_werror_flag=yes
+    ac_cv_prog_cc_g=no
+    CFLAGS="-g"
+@@ -6369,8 +6681,8 @@
+ if ac_fn_c_try_compile "$LINENO"
+ then :
+   ac_cv_prog_cc_g=yes
+-else $as_nop
+-  CFLAGS=""
++else case e in #(
++  e) CFLAGS=""
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+@@ -6385,8 +6697,8 @@
+ if ac_fn_c_try_compile "$LINENO"
+ then :
+ 
+-else $as_nop
+-  ac_c_werror_flag=$ac_save_c_werror_flag
++else case e in #(
++  e) ac_c_werror_flag=$ac_save_c_werror_flag
+        CFLAGS="-g"
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -6403,12 +6715,15 @@
+ then :
+   ac_cv_prog_cc_g=yes
+ fi
+-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
++rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
++esac
+ fi
+-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
++rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+-   ac_c_werror_flag=$ac_save_c_werror_flag
++   ac_c_werror_flag=$ac_save_c_werror_flag ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+ printf "%s
" "$ac_cv_prog_cc_g" >&6; }
+@@ -6435,8 +6750,8 @@
+ if test ${ac_cv_prog_cc_c11+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_cv_prog_cc_c11=no
++else case e in #(
++  e) ac_cv_prog_cc_c11=no
+ ac_save_CC=$CC
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -6453,25 +6768,28 @@
+   test "x$ac_cv_prog_cc_c11" != "xno" && break
+ done
+ rm -f conftest.$ac_ext
+-CC=$ac_save_CC
++CC=$ac_save_CC ;;
++esac
+ fi
+ 
+ if test "x$ac_cv_prog_cc_c11" = xno
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+ printf "%s
" "unsupported" >&6; }
+-else $as_nop
+-  if test "x$ac_cv_prog_cc_c11" = x
++else case e in #(
++  e) if test "x$ac_cv_prog_cc_c11" = x
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+ printf "%s
" "none needed" >&6; }
+-else $as_nop
+-  { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
++else case e in #(
++  e) { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+ printf "%s
" "$ac_cv_prog_cc_c11" >&6; }
+-     CC="$CC $ac_cv_prog_cc_c11"
++     CC="$CC $ac_cv_prog_cc_c11" ;;
++esac
+ fi
+   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
+-  ac_prog_cc_stdc=c11
++  ac_prog_cc_stdc=c11 ;;
++esac
+ fi
+ fi
+ if test x$ac_prog_cc_stdc = xno
+@@ -6481,8 +6799,8 @@
+ if test ${ac_cv_prog_cc_c99+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_cv_prog_cc_c99=no
++else case e in #(
++  e) ac_cv_prog_cc_c99=no
+ ac_save_CC=$CC
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -6499,25 +6817,28 @@
+   test "x$ac_cv_prog_cc_c99" != "xno" && break
+ done
+ rm -f conftest.$ac_ext
+-CC=$ac_save_CC
++CC=$ac_save_CC ;;
++esac
+ fi
+ 
+ if test "x$ac_cv_prog_cc_c99" = xno
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+ printf "%s
" "unsupported" >&6; }
+-else $as_nop
+-  if test "x$ac_cv_prog_cc_c99" = x
++else case e in #(
++  e) if test "x$ac_cv_prog_cc_c99" = x
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+ printf "%s
" "none needed" >&6; }
+-else $as_nop
+-  { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
++else case e in #(
++  e) { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+ printf "%s
" "$ac_cv_prog_cc_c99" >&6; }
+-     CC="$CC $ac_cv_prog_cc_c99"
++     CC="$CC $ac_cv_prog_cc_c99" ;;
++esac
+ fi
+   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
+-  ac_prog_cc_stdc=c99
++  ac_prog_cc_stdc=c99 ;;
++esac
+ fi
+ fi
+ if test x$ac_prog_cc_stdc = xno
+@@ -6527,8 +6848,8 @@
+ if test ${ac_cv_prog_cc_c89+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_cv_prog_cc_c89=no
++else case e in #(
++  e) ac_cv_prog_cc_c89=no
+ ac_save_CC=$CC
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -6545,25 +6866,28 @@
+   test "x$ac_cv_prog_cc_c89" != "xno" && break
+ done
+ rm -f conftest.$ac_ext
+-CC=$ac_save_CC
++CC=$ac_save_CC ;;
++esac
+ fi
+ 
+ if test "x$ac_cv_prog_cc_c89" = xno
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+ printf "%s
" "unsupported" >&6; }
+-else $as_nop
+-  if test "x$ac_cv_prog_cc_c89" = x
++else case e in #(
++  e) if test "x$ac_cv_prog_cc_c89" = x
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+ printf "%s
" "none needed" >&6; }
+-else $as_nop
+-  { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
++else case e in #(
++  e) { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+ printf "%s
" "$ac_cv_prog_cc_c89" >&6; }
+-     CC="$CC $ac_cv_prog_cc_c89"
++     CC="$CC $ac_cv_prog_cc_c89" ;;
++esac
+ fi
+   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
+-  ac_prog_cc_stdc=c89
++  ac_prog_cc_stdc=c89 ;;
++esac
+ fi
+ fi
+ 
+@@ -6584,8 +6908,8 @@
+ if test ${am_cv_prog_cc_c_o+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++else case e in #(
++  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+ int
+@@ -6614,8 +6938,12 @@
+       break
+     fi
+   done
+-  rm -f core conftest*
+-  unset am_i
++  # aligned with autoconf, so not including core; see bug#72225.
++  rm -f -r a.out a.exe b.out conftest.$ac_ext conftest.$ac_objext \
++    conftest.dSYM conftest1.$ac_ext conftest1.$ac_objext conftest1.dSYM \
++    conftest2.$ac_ext conftest2.$ac_objext conftest2.dSYM
++  unset am_i ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
+ printf "%s
" "$am_cv_prog_cc_c_o" >&6; }
+@@ -6641,8 +6969,8 @@
+ if test ${am_cv_CC_dependencies_compiler_type+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
++else case e in #(
++  e) if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+   # We make a subdir and do the tests there.  Otherwise we can end up
+   # making bogus files that we don't know about and never remove.  For
+   # instance it was reported that on HP-UX the gcc test will end up
+@@ -6729,7 +7057,7 @@
+       # icc doesn't choke on unknown options, it will just issue warnings
+       # or remarks (even with -Werror).  So we grep stderr for any message
+       # that says an option was ignored or not supported.
+-      # When given -MP, icc 7.0 and 7.1 complain thusly:
++      # When given -MP, icc 7.0 and 7.1 complain thus:
+       #   icc: Command line warning: ignoring option '-M'; no argument 
required
+       # The diagnosis changed in icc 8.0:
+       #   icc: Command line remark: option '-MP' not supported
+@@ -6746,7 +7074,8 @@
+ else
+   am_cv_CC_dependencies_compiler_type=none
+ fi
+-
++ ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" 
>&5
+ printf "%s
" "$am_cv_CC_dependencies_compiler_type" >&6; }
+@@ -6778,8 +7107,8 @@
+   if test ${ac_cv_prog_CPP+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-      # Double quotes because $CC needs to be expanded
++else case e in #(
++  e)     # Double quotes because $CC needs to be expanded
+     for CPP in "$CC -E" "$CC -E -traditional-cpp" cpp /lib/cpp
+     do
+       ac_preproc_ok=false
+@@ -6797,9 +7126,10 @@
+ if ac_fn_c_try_cpp "$LINENO"
+ then :
+ 
+-else $as_nop
+-  # Broken: fails on valid input.
+-continue
++else case e in #(
++  e) # Broken: fails on valid input.
++continue ;;
++esac
+ fi
+ rm -f conftest.err conftest.i conftest.$ac_ext
+ 
+@@ -6813,15 +7143,16 @@
+ then :
+   # Broken: success on invalid input.
+ continue
+-else $as_nop
+-  # Passes both tests.
++else case e in #(
++  e) # Passes both tests.
+ ac_preproc_ok=:
+-break
++break ;;
++esac
+ fi
+ rm -f conftest.err conftest.i conftest.$ac_ext
+ 
+ done
+-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
++# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+ rm -f conftest.i conftest.err conftest.$ac_ext
+ if $ac_preproc_ok
+ then :
+@@ -6830,7 +7161,8 @@
+ 
+     done
+     ac_cv_prog_CPP=$CPP
+-
++   ;;
++esac
+ fi
+   CPP=$ac_cv_prog_CPP
+ else
+@@ -6853,9 +7185,10 @@
+ if ac_fn_c_try_cpp "$LINENO"
+ then :
+ 
+-else $as_nop
+-  # Broken: fails on valid input.
+-continue
++else case e in #(
++  e) # Broken: fails on valid input.
++continue ;;
++esac
+ fi
+ rm -f conftest.err conftest.i conftest.$ac_ext
+ 
+@@ -6869,24 +7202,26 @@
+ then :
+   # Broken: success on invalid input.
+ continue
+-else $as_nop
+-  # Passes both tests.
++else case e in #(
++  e) # Passes both tests.
+ ac_preproc_ok=:
+-break
++break ;;
++esac
+ fi
+ rm -f conftest.err conftest.i conftest.$ac_ext
+ 
+ done
+-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
++# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+ rm -f conftest.i conftest.err conftest.$ac_ext
+ if $ac_preproc_ok
+ then :
+ 
+-else $as_nop
+-  { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+-printf "%s
" "$as_me: error: in \`$ac_pwd':" >&2;}
++else case e in #(
++  e) { { printf "%s
" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
++printf "%s
" "$as_me: error: in '$ac_pwd':" >&2;}
+ as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+-See \`config.log' for more details" "$LINENO" 5; }
++See 'config.log' for more details" "$LINENO" 5; } ;;
++esac
+ fi
+ 
+ ac_ext=cpp
+@@ -6914,8 +7249,8 @@
+ if test ${ac_cv_prog_CXX+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$CXX"; then
++else case e in #(
++  e) if test -n "$CXX"; then
+   ac_cv_prog_CXX="$CXX" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -6937,7 +7272,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ CXX=$ac_cv_prog_CXX
+ if test -n "$CXX"; then
+@@ -6963,8 +7299,8 @@
+ if test ${ac_cv_prog_ac_ct_CXX+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -n "$ac_ct_CXX"; then
++else case e in #(
++  e) if test -n "$ac_ct_CXX"; then
+   ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+ else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -6986,7 +7322,8 @@
+   done
+ IFS=$as_save_IFS
+ 
+-fi
++fi ;;
++esac
+ fi
+ ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+ if test -n "$ac_ct_CXX"; then
+@@ -7046,8 +7383,8 @@
+ if test ${ac_cv_cxx_compiler_gnu+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++else case e in #(
++  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+ int
+@@ -7064,12 +7401,14 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+   ac_compiler_gnu=yes
+-else $as_nop
+-  ac_compiler_gnu=no
++else case e in #(
++  e) ac_compiler_gnu=no ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+-
++ ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+ printf "%s
" "$ac_cv_cxx_compiler_gnu" >&6; }
+@@ -7087,8 +7426,8 @@
+ if test ${ac_cv_prog_cxx_g+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
++else case e in #(
++  e) ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+    ac_cxx_werror_flag=yes
+    ac_cv_prog_cxx_g=no
+    CXXFLAGS="-g"
+@@ -7106,8 +7445,8 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+   ac_cv_prog_cxx_g=yes
+-else $as_nop
+-  CXXFLAGS=""
++else case e in #(
++  e) CXXFLAGS=""
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+@@ -7122,8 +7461,8 @@
+ if ac_fn_cxx_try_compile "$LINENO"
+ then :
+ 
+-else $as_nop
+-  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
++else case e in #(
++  e) ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+        CXXFLAGS="-g"
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -7140,12 +7479,15 @@
+ then :
+   ac_cv_prog_cxx_g=yes
+ fi
+-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
++rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
++esac
+ fi
+-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
++rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
++esac
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+-   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
++   ac_cxx_werror_flag=$ac_save_cxx_werror_flag ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+ printf "%s
" "$ac_cv_prog_cxx_g" >&6; }
+@@ -7169,11 +7511,11 @@
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++11 
features" >&5
+ printf %s "checking for $CXX option to enable C++11 features... " >&6; }
+-if test ${ac_cv_prog_cxx_11+y}
++if test ${ac_cv_prog_cxx_cxx11+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_cv_prog_cxx_11=no
++else case e in #(
++  e) ac_cv_prog_cxx_cxx11=no
+ ac_save_CXX=$CXX
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -7190,36 +7532,39 @@
+   test "x$ac_cv_prog_cxx_cxx11" != "xno" && break
+ done
+ rm -f conftest.$ac_ext
+-CXX=$ac_save_CXX
++CXX=$ac_save_CXX ;;
++esac
+ fi
+ 
+ if test "x$ac_cv_prog_cxx_cxx11" = xno
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+ printf "%s
" "unsupported" >&6; }
+-else $as_nop
+-  if test "x$ac_cv_prog_cxx_cxx11" = x
++else case e in #(
++  e) if test "x$ac_cv_prog_cxx_cxx11" = x
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+ printf "%s
" "none needed" >&6; }
+-else $as_nop
+-  { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
++else case e in #(
++  e) { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
+ printf "%s
" "$ac_cv_prog_cxx_cxx11" >&6; }
+-     CXX="$CXX $ac_cv_prog_cxx_cxx11"
++     CXX="$CXX $ac_cv_prog_cxx_cxx11" ;;
++esac
+ fi
+   ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11
+-  ac_prog_cxx_stdcxx=cxx11
++  ac_prog_cxx_stdcxx=cxx11 ;;
++esac
+ fi
+ fi
+ if test x$ac_prog_cxx_stdcxx = xno
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++98 
features" >&5
+ printf %s "checking for $CXX option to enable C++98 features... " >&6; }
+-if test ${ac_cv_prog_cxx_98+y}
++if test ${ac_cv_prog_cxx_cxx98+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_cv_prog_cxx_98=no
++else case e in #(
++  e) ac_cv_prog_cxx_cxx98=no
+ ac_save_CXX=$CXX
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+@@ -7236,25 +7581,28 @@
+   test "x$ac_cv_prog_cxx_cxx98" != "xno" && break
+ done
+ rm -f conftest.$ac_ext
+-CXX=$ac_save_CXX
++CXX=$ac_save_CXX ;;
++esac
+ fi
+ 
+ if test "x$ac_cv_prog_cxx_cxx98" = xno
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+ printf "%s
" "unsupported" >&6; }
+-else $as_nop
+-  if test "x$ac_cv_prog_cxx_cxx98" = x
++else case e in #(
++  e) if test "x$ac_cv_prog_cxx_cxx98" = x
+ then :
+   { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+ printf "%s
" "none needed" >&6; }
+-else $as_nop
+-  { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
++else case e in #(
++  e) { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
+ printf "%s
" "$ac_cv_prog_cxx_cxx98" >&6; }
+-     CXX="$CXX $ac_cv_prog_cxx_cxx98"
++     CXX="$CXX $ac_cv_prog_cxx_cxx98" ;;
++esac
+ fi
+   ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98
+-  ac_prog_cxx_stdcxx=cxx98
++  ac_prog_cxx_stdcxx=cxx98 ;;
++esac
+ fi
+ fi
+ 
+@@ -7271,8 +7619,8 @@
+ if test ${am_cv_CXX_dependencies_compiler_type+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
++else case e in #(
++  e) if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+   # We make a subdir and do the tests there.  Otherwise we can end up
+   # making bogus files that we don't know about and never remove.  For
+   # instance it was reported that on HP-UX the gcc test will end up
+@@ -7359,7 +7707,7 @@
+       # icc doesn't choke on unknown options, it will just issue warnings
+       # or remarks (even with -Werror).  So we grep stderr for any message
+       # that says an option was ignored or not supported.
+-      # When given -MP, icc 7.0 and 7.1 complain thusly:
++      # When given -MP, icc 7.0 and 7.1 complain thus:
+       #   icc: Command line warning: ignoring option '-M'; no argument 
required
+       # The diagnosis changed in icc 8.0:
+       #   icc: Command line remark: option '-MP' not supported
+@@ -7376,7 +7724,8 @@
+ else
+   am_cv_CXX_dependencies_compiler_type=none
+ fi
+-
++ ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $am_cv_CXX_dependencies_compiler_type" 
>&5
+ printf "%s
" "$am_cv_CXX_dependencies_compiler_type" >&6; }
+@@ -7401,8 +7750,8 @@
+ 
+ 
+ 
+-macro_version='2.4.6'
+-macro_revision='2.4.6'
++macro_version='2.5.4'
++macro_revision='2.5.4'
+ 
+ 
+ 
+@@ -7430,15 +7779,16 @@
+ if test ${ac_cv_build+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  ac_build_alias=$build_alias
++else case e in #(
++  e) ac_build_alias=$build_alias
+ test "x$ac_build_alias" = x &&
+   ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"`
+ test "x$ac_build_alias" = x &&
+   as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` ||
+   as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" 
"$LINENO" 5
+-
++ ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+ printf "%s
" "$ac_cv_build" >&6; }
+@@ -7465,14 +7815,15 @@
+ if test ${ac_cv_host+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test "x$host_alias" = x; then
++else case e in #(
++  e) if test "x$host_alias" = x; then
+   ac_cv_host=$ac_cv_build
+ else
+   ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` ||
+     as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" 
"$LINENO" 5
+ fi
+-
++ ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+ printf "%s
" "$ac_cv_host" >&6; }
+@@ -7568,8 +7919,8 @@
+ if test ${ac_cv_path_SED+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-            
ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
++else case e in #(
++  e)           
ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+      for ac_i in 1 2 3 4 5 6 7; do
+        ac_script="$ac_script$as_nl$ac_script"
+      done
+@@ -7594,9 +7945,10 @@
+       as_fn_executable_p "$ac_path_SED" || continue
+ # Check for GNU ac_path_SED and select it if it is found.
+   # Check for GNU $ac_path_SED
+-case `"$ac_path_SED" --version 2>&1` in
++case `"$ac_path_SED" --version 2>&1` in #(
+ *GNU*)
+   ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
++#(
+ *)
+   ac_count=0
+   printf %s 0123456789 >"conftest.in"
+@@ -7631,7 +7983,8 @@
+ else
+   ac_cv_path_SED=$SED
+ fi
+-
++ ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+ printf "%s
" "$ac_cv_path_SED" >&6; }
+@@ -7656,8 +8009,8 @@
+ if test ${ac_cv_path_GREP+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if test -z "$GREP"; then
++else case e in #(
++  e) if test -z "$GREP"; then
+   ac_path_GREP_found=false
+   # Loop through the user's path and test for each of PROGNAME-LIST
+   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+@@ -7676,9 +8029,10 @@
+       as_fn_executable_p "$ac_path_GREP" || continue
+ # Check for GNU ac_path_GREP and select it if it is found.
+   # Check for GNU $ac_path_GREP
+-case `"$ac_path_GREP" --version 2>&1` in
++case `"$ac_path_GREP" --version 2>&1` in #(
+ *GNU*)
+   ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
++#(
+ *)
+   ac_count=0
+   printf %s 0123456789 >"conftest.in"
+@@ -7713,7 +8067,8 @@
+ else
+   ac_cv_path_GREP=$GREP
+ fi
+-
++ ;;
++esac
+ fi
+ { printf "%s
" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+ printf "%s
" "$ac_cv_path_GREP" >&6; }
+@@ -7725,8 +8080,8 @@
+ if test ${ac_cv_path_EGREP+y}
+ then :
+   printf %s "(cached) " >&6
+-else $as_nop
+-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
++else case e in #(
++  e) if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+    then ac_cv_path_EGREP="$GREP -E"
+    else
+      if test -z "$EGREP"; then
-e 
... etc. - the rest is truncated

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