I understand that some people might find function exports useful, but
there is also some utility in being able to turn it off.
I've added a configure flag, --disable-function-export which prevents
bash from attempting to parse environment variables that look like
functions upon startup. The default behavior is still to allow
function exports. You can note that this actually adds symmetry with
array exports for which there is already a flag that does the same
thing.
Let me know if there is interest in this, or what I might need to do
further to get this accepted.
Thanks,
Dave
From 9f8f691304329618556c8c33dfc0b30cd10fcf26 Mon Sep 17 00:00:00 2001
From: David Galos <davega...@google.com>
Date: Thu, 25 Sep 2014 13:27:43 -0400
Subject: [PATCH 1/4] add a flag to enable or disable function import on
startup
---
configure.in | 6 ++++++
variables.c | 4 ++++
2 files changed, 10 insertions(+)
diff --git a/configure.in b/configure.in
index d7e0998..c48bf07 100644
--- a/configure.in
+++ b/configure.in
@@ -186,6 +186,7 @@ opt_single_longdoc_strings=yes
opt_casemod_attrs=yes
opt_casemod_expansions=yes
opt_extglob_default=no
+opt_function_export=yes
dnl options that affect how bash is compiled and linked
opt_static_link=no
@@ -206,6 +207,7 @@ if test $opt_minimal_config = yes; then
opt_net_redirs=no opt_progcomp=no opt_separate_help=no
opt_multibyte=yes opt_cond_regexp=no opt_coproc=no
opt_casemod_attrs=no opt_casemod_expansions=no opt_extglob_default=no
+ opt_function_export=no
fi
AC_ARG_ENABLE(alias, AC_HELP_STRING([--enable-alias], [enable shell aliases]), opt_alias=$enableval)
@@ -241,6 +243,7 @@ AC_ARG_ENABLE(single-help-strings, AC_HELP_STRING([--enable-single-help-strings]
AC_ARG_ENABLE(strict-posix-default, AC_HELP_STRING([--enable-strict-posix-default], [configure bash to be posix-conformant by default]), opt_strict_posix=$enableval)
AC_ARG_ENABLE(usg-echo-default, AC_HELP_STRING([--enable-usg-echo-default], [a synonym for --enable-xpg-echo-default]), opt_xpg_echo=$enableval)
AC_ARG_ENABLE(xpg-echo-default, AC_HELP_STRING([--enable-xpg-echo-default], [make the echo builtin expand escape sequences by default]), opt_xpg_echo=$enableval)
+AC_ARG_ENABLE(function-export, AC_HELP_STRING([--enable-function-export], [allow bash to treat certain environment variables as functions]), opt_function_export=$enableval)
dnl options that alter how bash is compiled and linked
AC_ARG_ENABLE(mem-scramble, AC_HELP_STRING([--enable-mem-scramble], [scramble memory on calls to malloc and free]), opt_memscramble=$enableval)
@@ -333,6 +336,9 @@ fi
if test $opt_casemod_expansions = yes; then
AC_DEFINE(CASEMOD_EXPANSIONS)
fi
+if test $opt_function_export = yes; then
+AC_DEFINE(FUNCTION_EXPORT)
+fi
if test $opt_memscramble = yes; then
AC_DEFINE(MEMSCRAMBLE)
diff --git a/variables.c b/variables.c
index 92a5a10..f33f66c 100644
--- a/variables.c
+++ b/variables.c
@@ -349,7 +349,11 @@ initialize_shell_variables (env, privmode)
/* If exported function, define it now. Don't import functions from
the environment in privileged mode. */
+#if defined (FUNCTION_EXPORT)
if (privmode == 0 && read_but_dont_execute == 0 && STREQN ("() {", string, 4))
+#else
+ if (0)
+#endif
{
string_length = strlen (string);
temp_string = (char *)xmalloc (3 + string_length + char_index);
--
2.1.0.rc2.206.gedb03e5
From 0f6618bfd1a714b10205b20bb682e4de21a2a7f0 Mon Sep 17 00:00:00 2001
From: David Galos <davega...@google.com>
Date: Thu, 25 Sep 2014 13:41:35 -0400
Subject: [PATCH 2/4] merge configure.in changes to configure.ac
---
configure.ac | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 97e8e04..2b116f8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -193,6 +193,7 @@ opt_casemod_expansions=yes
opt_extglob_default=no
opt_dircomplete_expand_default=no
opt_globascii_default=no
+opt_function_export=yes
dnl options that affect how bash is compiled and linked
opt_static_link=no
@@ -213,7 +214,7 @@ if test $opt_minimal_config = yes; then
opt_net_redirs=no opt_progcomp=no opt_separate_help=no
opt_multibyte=yes opt_cond_regexp=no opt_coproc=no
opt_casemod_attrs=no opt_casemod_expansions=no opt_extglob_default=no
- opt_globascii_default=no
+ opt_globascii_default=no opt_function_export=no
fi
AC_ARG_ENABLE(alias, AC_HELP_STRING([--enable-alias], [enable shell aliases]), opt_alias=$enableval)
@@ -251,6 +252,7 @@ AC_ARG_ENABLE(single-help-strings, AC_HELP_STRING([--enable-single-help-strings]
AC_ARG_ENABLE(strict-posix-default, AC_HELP_STRING([--enable-strict-posix-default], [configure bash to be posix-conformant by default]), opt_strict_posix=$enableval)
AC_ARG_ENABLE(usg-echo-default, AC_HELP_STRING([--enable-usg-echo-default], [a synonym for --enable-xpg-echo-default]), opt_xpg_echo=$enableval)
AC_ARG_ENABLE(xpg-echo-default, AC_HELP_STRING([--enable-xpg-echo-default], [make the echo builtin expand escape sequences by default]), opt_xpg_echo=$enableval)
+AC_ARG_ENABLE(function-export, AC_HELP_STRING([--enable-function-export], [allow bash to treat certain environment variables as functions]), opt_function_export=$enableval)
dnl options that alter how bash is compiled and linked
AC_ARG_ENABLE(mem-scramble, AC_HELP_STRING([--enable-mem-scramble], [scramble memory on calls to malloc and free]), opt_memscramble=$enableval)
@@ -357,6 +359,9 @@ AC_DEFINE(GLOBASCII_DEFAULT, 1)
else
AC_DEFINE(GLOBASCII_DEFAULT, 0)
fi
+if test $opt_function_export = yes; then
+AC_DEFINE(FUNCTION_EXPORT)
+fi
if test $opt_memscramble = yes; then
AC_DEFINE(MEMSCRAMBLE)
--
2.1.0.rc2.206.gedb03e5
From c65179afe77a6b8582aa12de140ad63a259970db Mon Sep 17 00:00:00 2001
From: David Galos <davega...@google.com>
Date: Thu, 25 Sep 2014 15:18:01 -0400
Subject: [PATCH 3/4] add FUNCTION_EXPORT to config.h.in
---
config.h.in | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/config.h.in b/config.h.in
index 08af2ba..3968f03 100644
--- a/config.h.in
+++ b/config.h.in
@@ -107,6 +107,10 @@
/* Define ARRAY_VARS if you want ksh-style one-dimensional array variables. */
#undef ARRAY_VARS
+/* Define FUNCTION_EXPORT if you want bash to eval function-like environment
+ variables */
+#undef FUNCTION_EXPORT
+
/* Define DPAREN_ARITHMETIC if you want the ksh-style ((...)) arithmetic
evaluation command. */
#undef DPAREN_ARITHMETIC
--
2.1.0.rc2.206.gedb03e5
From 1c7ff8ca95caceed3de004d4acbc8d2350e95a81 Mon Sep 17 00:00:00 2001
From: David Galos <davega...@google.com>
Date: Thu, 25 Sep 2014 15:36:06 -0400
Subject: [PATCH 4/4] re-run autoconf to regen configure
---
configure | 307 +++++++++++++++++++++++++++++++-------------------------------
1 file changed, 156 insertions(+), 151 deletions(-)
diff --git a/configure b/configure
index 98bf890..a3adbcd 100755
--- a/configure
+++ b/configure
@@ -1,12 +1,14 @@
#! /bin/sh
# From configure.ac for Bash 4.3, version 4.063.
# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for bash 4.3-release.
+# Generated by GNU Autoconf 2.68 for bash 4.3-release.
#
# Report bugs to <bug-bash@gnu.org>.
#
#
-# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
+# Foundation, Inc.
#
#
# This configure script is free software; the Free Software Foundation
@@ -135,31 +137,6 @@ export LANGUAGE
# CDPATH.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-# Use a proper internal environment variable to ensure we don't fall
- # into an infinite loop, continuously re-executing ourselves.
- if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
- _as_can_reexec=no; export _as_can_reexec;
- # We cannot yet assume a decent shell, so we have to provide a
-# neutralization value for shells without unset; and this also
-# works around shells that cannot unset nonexistent variables.
-# Preserve -v and -x to the replacement shell.
-BASH_ENV=/dev/null
-ENV=/dev/null
-(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-case $- in # ((((
- *v*x* | *x*v* ) as_opts=-vx ;;
- *v* ) as_opts=-v ;;
- *x* ) as_opts=-x ;;
- * ) as_opts= ;;
-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'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-as_fn_exit 255
- fi
- # We don't want this to propagate to other subprocesses.
- { _as_can_reexec=; unset _as_can_reexec;}
if test "x$CONFIG_SHELL" = x; then
as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
emulate sh
@@ -193,8 +170,7 @@ if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
else
exitcode=1; echo positional parameters were not saved.
fi
-test x\$exitcode = x0 || exit 1
-test -x / || exit 1"
+test x\$exitcode = x0 || exit 1"
as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
@@ -239,25 +215,21 @@ IFS=$as_save_IFS
if test "x$CONFIG_SHELL" != x; then :
- export CONFIG_SHELL
- # We cannot yet assume a decent shell, so we have to provide a
-# neutralization value for shells without unset; and this also
-# works around shells that cannot unset nonexistent variables.
-# Preserve -v and -x to the replacement shell.
-BASH_ENV=/dev/null
-ENV=/dev/null
-(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-case $- in # ((((
- *v*x* | *x*v* ) as_opts=-vx ;;
- *v* ) as_opts=-v ;;
- *x* ) as_opts=-x ;;
- * ) as_opts= ;;
-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'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-exit 255
+ # We cannot yet assume a decent shell, so we have to provide a
+ # neutralization value for shells without unset; and this also
+ # works around shells that cannot unset nonexistent variables.
+ # Preserve -v and -x to the replacement shell.
+ BASH_ENV=/dev/null
+ ENV=/dev/null
+ (unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+ export CONFIG_SHELL
+ case $- in # ((((
+ *v*x* | *x*v* ) as_opts=-vx ;;
+ *v* ) as_opts=-v ;;
+ *x* ) as_opts=-x ;;
+ * ) as_opts= ;;
+ esac
+ exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"}
fi
if test x$as_have_required = xno; then :
@@ -360,14 +332,6 @@ $as_echo X"$as_dir" |
} # as_fn_mkdir_p
-
-# as_fn_executable_p FILE
-# -----------------------
-# Test if FILE is an executable regular file.
-as_fn_executable_p ()
-{
- test -f "$1" && test -x "$1"
-} # as_fn_executable_p
# as_fn_append VAR VALUE
# ----------------------
# Append the text in VALUE to the end of the definition contained in VAR. Take
@@ -489,10 +453,6 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
chmod +x "$as_me.lineno" ||
{ $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
- # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
- # already done that, so ensure we don't try to do so again and fall
- # in an infinite loop. This has already happened in practice.
- _as_can_reexec=no; export _as_can_reexec
# Don't try to exec as it changes $[0], causing all sort of problems
# (the dirname of $[0] is not the place where we might find the
# original and so on. Autoconf is especially sensitive to this).
@@ -527,16 +487,16 @@ if (echo >conf$$.file) 2>/dev/null; then
# ... but there are two gotchas:
# 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
# 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
- # In both cases, we have to default to `cp -pR'.
+ # In both cases, we have to default to `cp -p'.
ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
- as_ln_s='cp -pR'
+ as_ln_s='cp -p'
elif ln conf$$.file conf$$ 2>/dev/null; then
as_ln_s=ln
else
- as_ln_s='cp -pR'
+ as_ln_s='cp -p'
fi
else
- as_ln_s='cp -pR'
+ as_ln_s='cp -p'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null
@@ -548,8 +508,28 @@ else
as_mkdir_p=false
fi
-as_test_x='test -x'
-as_executable_p=as_fn_executable_p
+if test -x / >/dev/null 2>&1; then
+ as_test_x='test -x'
+else
+ if ls -dL / >/dev/null 2>&1; then
+ as_ls_L_option=L
+ else
+ as_ls_L_option=
+ fi
+ as_test_x='
+ eval sh -c '\''
+ if test -d "$1"; then
+ test -d "$1/.";
+ else
+ case $1 in #(
+ -*)set "./$1";;
+ esac;
+ case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+ ???[sx]*):;;*)false;;esac;fi
+ '\'' sh
+ '
+fi
+as_executable_p=$as_test_x
# 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%[^_$as_cr_alnum]%_%g'"
@@ -826,6 +806,7 @@ enable_single_help_strings
enable_strict_posix_default
enable_usg_echo_default
enable_xpg_echo_default
+enable_function_export
enable_mem_scramble
enable_profiling
enable_static_link
@@ -1308,6 +1289,8 @@ target=$target_alias
if test "x$host_alias" != x; then
if test "x$build_alias" = x; then
cross_compiling=maybe
+ $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't use --host.
+ If a cross compiler is detected then cross compile mode will be used" >&2
elif test "x$build_alias" != "x$host_alias"; then
cross_compiling=yes
fi
@@ -1528,6 +1511,9 @@ Optional Features:
--enable-xpg-echo-default
make the echo builtin expand escape sequences by
default
+ --enable-function-export
+ allow bash to treat certain environment variables as
+ functions
--enable-mem-scramble scramble memory on calls to malloc and free
--enable-profiling allow profiling with gprof
--enable-static-link link bash statically, for use as a root shell
@@ -1651,9 +1637,9 @@ test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
bash configure 4.3-release
-generated by GNU Autoconf 2.69
+generated by GNU Autoconf 2.68
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2010 Free Software Foundation, Inc.
This configure script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it.
_ACEOF
@@ -1729,7 +1715,7 @@ $as_echo "$ac_try_echo"; } >&5
test ! -s conftest.err
} && test -s conftest$ac_exeext && {
test "$cross_compiling" = yes ||
- test -x conftest$ac_exeext
+ $as_test_x conftest$ac_exeext
}; then :
ac_retval=0
else
@@ -2133,8 +2119,7 @@ int
main ()
{
static int test_array [1 - 2 * !(($2) >= 0)];
-test_array [0] = 0;
-return test_array [0];
+test_array [0] = 0
;
return 0;
@@ -2150,8 +2135,7 @@ int
main ()
{
static int test_array [1 - 2 * !(($2) <= $ac_mid)];
-test_array [0] = 0;
-return test_array [0];
+test_array [0] = 0
;
return 0;
@@ -2177,8 +2161,7 @@ int
main ()
{
static int test_array [1 - 2 * !(($2) < 0)];
-test_array [0] = 0;
-return test_array [0];
+test_array [0] = 0
;
return 0;
@@ -2194,8 +2177,7 @@ int
main ()
{
static int test_array [1 - 2 * !(($2) >= $ac_mid)];
-test_array [0] = 0;
-return test_array [0];
+test_array [0] = 0
;
return 0;
@@ -2229,8 +2211,7 @@ int
main ()
{
static int test_array [1 - 2 * !(($2) <= $ac_mid)];
-test_array [0] = 0;
-return test_array [0];
+test_array [0] = 0
;
return 0;
@@ -2360,7 +2341,7 @@ This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
It was created by bash $as_me 4.3-release, which was
-generated by GNU Autoconf 2.69. Invocation command line was
+generated by GNU Autoconf 2.68. Invocation command line was
$ $0 $@
@@ -3002,6 +2983,7 @@ opt_casemod_expansions=yes
opt_extglob_default=no
opt_dircomplete_expand_default=no
opt_globascii_default=no
+opt_function_export=yes
opt_static_link=no
opt_profiling=no
@@ -3022,7 +3004,7 @@ if test $opt_minimal_config = yes; then
opt_net_redirs=no opt_progcomp=no opt_separate_help=no
opt_multibyte=yes opt_cond_regexp=no opt_coproc=no
opt_casemod_attrs=no opt_casemod_expansions=no opt_extglob_default=no
- opt_globascii_default=no
+ opt_globascii_default=no opt_function_export=no
fi
# Check whether --enable-alias was given.
@@ -3200,6 +3182,11 @@ if test "${enable_xpg_echo_default+set}" = set; then :
enableval=$enable_xpg_echo_default; opt_xpg_echo=$enableval
fi
+# Check whether --enable-function-export was given.
+if test "${enable_function_export+set}" = set; then :
+ enableval=$enable_function_export; opt_function_export=$enableval
+fi
+
# Check whether --enable-mem-scramble was given.
if test "${enable_mem_scramble+set}" = set; then :
@@ -3342,6 +3329,10 @@ else
$as_echo "#define GLOBASCII_DEFAULT 0" >>confdefs.h
fi
+if test $opt_function_export = yes; then
+$as_echo "#define FUNCTION_EXPORT 1" >>confdefs.h
+
+fi
if test $opt_memscramble = yes; then
$as_echo "#define MEMSCRAMBLE 1" >>confdefs.h
@@ -3414,7 +3405,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_CC="${ac_tool_prefix}gcc"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -3454,7 +3445,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_ac_ct_CC="gcc"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -3507,7 +3498,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_CC="${ac_tool_prefix}cc"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -3548,7 +3539,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
ac_prog_rejected=yes
continue
@@ -3606,7 +3597,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -3650,7 +3641,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_ac_ct_CC="$ac_prog"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -4096,7 +4087,8 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <stdarg.h>
#include <stdio.h>
-struct stat;
+#include <sys/types.h>
+#include <sys/stat.h>
/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
struct buf { int x; };
FILE * (*rcsopen) (struct buf *, struct stat *, int);
@@ -4380,7 +4372,7 @@ do
for ac_prog in grep ggrep; do
for ac_exec_ext in '' $ac_executable_extensions; do
ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
- as_fn_executable_p "$ac_path_GREP" || continue
+ { test -f "$ac_path_GREP" && $as_test_x "$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
@@ -4446,7 +4438,7 @@ do
for ac_prog in egrep; do
for ac_exec_ext in '' $ac_executable_extensions; do
ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
- as_fn_executable_p "$ac_path_EGREP" || continue
+ { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
# Check for GNU ac_path_EGREP and select it if it is found.
# Check for GNU $ac_path_EGREP
case `"$ac_path_EGREP" --version 2>&1` in
@@ -4653,8 +4645,8 @@ else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-# define __EXTENSIONS__ 1
- $ac_includes_default
+# define __EXTENSIONS__ 1
+ $ac_includes_default
int
main ()
{
@@ -4882,8 +4874,6 @@ _ACEOF
esac
rm -rf conftest*
fi
-
-
fi
@@ -5523,7 +5513,7 @@ case $as_dir/ in #((
# by default.
for ac_prog in ginstall scoinst install; do
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
if test $ac_prog = install &&
grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
# AIX install. It has an incompatible calling convention.
@@ -5596,7 +5586,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_AR="${ac_tool_prefix}ar"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -5636,7 +5626,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_ac_ct_AR="ar"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -5689,7 +5679,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -5729,7 +5719,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_ac_ct_RANLIB="ranlib"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -5782,7 +5772,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_YACC="$ac_prog"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -5921,11 +5911,11 @@ else
int
main ()
{
-
+/* FIXME: Include the comments suggested by Paul. */
#ifndef __cplusplus
- /* Ultrix mips cc rejects this sort of thing. */
+ /* Ultrix mips cc rejects this. */
typedef int charset[2];
- const charset cs = { 0, 0 };
+ const charset cs;
/* SunOS 4.1.1 cc rejects this. */
char const *const *pcpcc;
char **ppc;
@@ -5942,9 +5932,8 @@ main ()
++pcpcc;
ppc = (char**) pcpcc;
pcpcc = (char const *const *) ppc;
- { /* SCO 3.2v4 cc rejects this sort of thing. */
- char tx;
- char *t = &tx;
+ { /* SCO 3.2v4 cc rejects this. */
+ char *t;
char const *s = 0 ? (char *) 0 : (char const *) 0;
*t++ = 0;
@@ -5960,10 +5949,10 @@ main ()
iptr p = 0;
++p;
}
- { /* AIX XL C 1.02.0.0 rejects this sort of thing, saying
+ { /* AIX XL C 1.02.0.0 rejects this saying
"k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
- struct s { int j; const int *ap[3]; } bx;
- struct s *b = &bx; b->j = 5;
+ struct s { int j; const int *ap[3]; };
+ struct s *b; b->j = 5;
}
{ /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
const int foo = 10;
@@ -6316,8 +6305,7 @@ static int test_array [1 - 2 * !((0 < ((DBL_MAX_EXP < LDBL_MAX_EXP)
- (LDBL_MANT_DIG < DBL_MANT_DIG)))
&& (int) LDBL_EPSILON == 0
)];
-test_array [0] = 0;
-return test_array [0];
+test_array [0] = 0
;
return 0;
@@ -6373,8 +6361,7 @@ int
main ()
{
static int test_array [1 - 2 * !(((char) -1) < 0)];
-test_array [0] = 0;
-return test_array [0];
+test_array [0] = 0
;
return 0;
@@ -6592,7 +6579,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_path_GMSGFMT="$as_dir/$ac_word$ac_exec_ext"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -6956,20 +6943,23 @@ else
/* end confdefs.h. */
$ac_includes_default
int
-find_stack_direction (int *addr, int depth)
+find_stack_direction ()
{
- int dir, dummy = 0;
- if (! addr)
- addr = &dummy;
- *addr = addr < &dummy ? 1 : addr == &dummy ? 0 : -1;
- dir = depth ? find_stack_direction (addr, depth - 1) : 0;
- return dir + dummy;
+ static char *addr = 0;
+ auto char dummy;
+ if (addr == 0)
+ {
+ addr = &dummy;
+ return find_stack_direction ();
+ }
+ else
+ return (&dummy > addr) ? 1 : -1;
}
int
-main (int argc, char **argv)
+main ()
{
- return find_stack_direction (0, argc + !argv + 20) < 0;
+ return find_stack_direction () < 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
@@ -8327,7 +8317,7 @@ do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
ac_cv_prog_INTLBISON="$ac_prog"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
@@ -9471,20 +9461,23 @@ else
/* end confdefs.h. */
$ac_includes_default
int
-find_stack_direction (int *addr, int depth)
+find_stack_direction ()
{
- int dir, dummy = 0;
- if (! addr)
- addr = &dummy;
- *addr = addr < &dummy ? 1 : addr == &dummy ? 0 : -1;
- dir = depth ? find_stack_direction (addr, depth - 1) : 0;
- return dir + dummy;
+ static char *addr = 0;
+ auto char dummy;
+ if (addr == 0)
+ {
+ addr = &dummy;
+ return find_stack_direction ();
+ }
+ else
+ return (&dummy > addr) ? 1 : -1;
}
int
-main (int argc, char **argv)
+main ()
{
- return find_stack_direction (0, argc + !argv + 20) < 0;
+ return find_stack_direction () < 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
@@ -16452,16 +16445,16 @@ if (echo >conf$$.file) 2>/dev/null; then
# ... but there are two gotchas:
# 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
# 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
- # In both cases, we have to default to `cp -pR'.
+ # In both cases, we have to default to `cp -p'.
ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
- as_ln_s='cp -pR'
+ as_ln_s='cp -p'
elif ln conf$$.file conf$$ 2>/dev/null; then
as_ln_s=ln
else
- as_ln_s='cp -pR'
+ as_ln_s='cp -p'
fi
else
- as_ln_s='cp -pR'
+ as_ln_s='cp -p'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null
@@ -16521,16 +16514,28 @@ else
as_mkdir_p=false
fi
-
-# as_fn_executable_p FILE
-# -----------------------
-# Test if FILE is an executable regular file.
-as_fn_executable_p ()
-{
- test -f "$1" && test -x "$1"
-} # as_fn_executable_p
-as_test_x='test -x'
-as_executable_p=as_fn_executable_p
+if test -x / >/dev/null 2>&1; then
+ as_test_x='test -x'
+else
+ if ls -dL / >/dev/null 2>&1; then
+ as_ls_L_option=L
+ else
+ as_ls_L_option=
+ fi
+ as_test_x='
+ eval sh -c '\''
+ if test -d "$1"; then
+ test -d "$1/.";
+ else
+ case $1 in #(
+ -*)set "./$1";;
+ esac;
+ case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+ ???[sx]*):;;*)false;;esac;fi
+ '\'' sh
+ '
+fi
+as_executable_p=$as_test_x
# 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%[^_$as_cr_alnum]%_%g'"
@@ -16552,7 +16557,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# values after options handling.
ac_log="
This file was extended by bash $as_me 4.3-release, which was
-generated by GNU Autoconf 2.69. Invocation command line was
+generated by GNU Autoconf 2.68. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
CONFIG_HEADERS = $CONFIG_HEADERS
@@ -16618,10 +16623,10 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
ac_cs_version="\\
bash config.status 4.3-release
-configured by $0, generated by GNU Autoconf 2.69,
+configured by $0, generated by GNU Autoconf 2.68,
with options \\"\$ac_cs_config\\"
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2010 Free Software Foundation, Inc.
This config.status script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it."
@@ -16710,7 +16715,7 @@ fi
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
if \$ac_cs_recheck; then
- set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+ set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
shift
\$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
CONFIG_SHELL='$SHELL'
--
2.1.0.rc2.206.gedb03e5
