On Tue, 2020-01-14 at 23:33 +0000, Joseph Myers wrote: > My preference is still what I said in > <https://gcc.gnu.org/ml/gcc-patches/2019-11/msg02003.html>;: either > eliminate C alloca from libiberty, or don't build it with any compiler > defining __GNUC__. I'd be surprised if there are host compilers that > build libiberty, have the relevant optimizations but don't support alloca. So here's a patch that I think kills the alloca bits.
intl/ was the most interesting in that it has several #if ALLOCA thingies. But I reviewed all them and I'm pretty sure we'll do the right thing (they define HAVE_ALLOCA anytime __GNUC__ is defined). I've bootstrapped and regression tested without issue, of course. But that doesn't really exercise the worrisome cases. I wanted to try and bootstrap on aix7.2, but the machine is the farm takes several seconds for every file/directory operation. Clearly not feasible. So I then wanted to try on aix7.1, but it doesn't look like we've got a usable xlc++. Then I tried to build on Solaris 11 in the farm. But no Oracle C++ compiler seems to be installed on that box. So I'd really appreciated it if someone could do a bootstrap with something other than GCC, preferably on AIX, but Solaris would be fine too. Anyway, here's the patch which removes all the alloca crud that I think should disappear.
config/ * gettext.m4 (AC_FUNC_ALLOCA): No longer required. intl/ * config.h.in: Rebuilt. * configure: Rebuilt. libcpp/ * configure.ac (AC_FUNC_ALLOCA): No longer required. * config.h.in: Rebuilt. * configure: Rebuilt. libffi/ * configure.ac (AC_FUNC_ALLOC): No longer required. * Makefile.in: Rebuilt. * fficonfig.h.in: Rebuilt. * configure: Rebuilt. * include/Makefile.in * man/Makefile.in * testsuite/Makefile.in libiberty: * aclocal.m4 (libiberty_AC_FUNC_C_ALLOCA): Remove * configure.in (libiberty_AC_FUNC_C_ALLOC): No longer required * Makefile.in: Rebuilt. * configure: Rebuilt. * alloca.c: Remove. diff --git a/config/gettext.m4 b/config/gettext.m4 index 45fa6b4ab76..83f4eb98a99 100644 --- a/config/gettext.m4 +++ b/config/gettext.m4 @@ -357,7 +357,6 @@ AC_DEFUN([AM_INTL_SUBDIR], AC_REQUIRE([AC_C_INLINE])dnl AC_REQUIRE([AC_TYPE_OFF_T])dnl AC_REQUIRE([AC_TYPE_SIZE_T])dnl - AC_REQUIRE([AC_FUNC_ALLOCA])dnl AC_REQUIRE([AC_FUNC_MMAP])dnl AC_REQUIRE([jm_GLIBC21])dnl AC_REQUIRE([gt_INTDIV0])dnl diff --git a/intl/config.h.in b/intl/config.h.in index 9c9b53dc0ea..637977c44b1 100644 --- a/intl/config.h.in +++ b/intl/config.h.in @@ -1,13 +1,5 @@ /* config.h.in. Generated from configure.ac by autoheader. */ -/* Define to one of `_getb67', `GETB67', `getb67' for Cray-2 and Cray-YMP - systems. This function is required for `alloca.c' support on those systems. - */ -#undef CRAY_STACKSEG_END - -/* Define to 1 if using `alloca.c'. */ -#undef C_ALLOCA - /* Define because we depend on libiconv. */ #undef DEPENDS_ON_LIBICONV @@ -18,13 +10,6 @@ /* Define to enable relocation. */ #undef ENABLE_RELOCATABLE -/* Define to 1 if you have `alloca', as a function or macro. */ -#undef HAVE_ALLOCA - -/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix). - */ -#undef HAVE_ALLOCA_H - /* Define to 1 if you have the <argz.h> header file. */ #undef HAVE_ARGZ_H @@ -211,14 +196,6 @@ /* Define if <inttypes.h> exists and defines unusable PRI* macros. */ #undef PRI_MACROS_BROKEN -/* If using the C implementation of alloca, define if you know the - direction of stack growth for your system; otherwise it will be - automatically deduced at runtime. - STACK_DIRECTION > 0 => grows toward higher addresses - STACK_DIRECTION < 0 => grows toward lower addresses - STACK_DIRECTION = 0 => direction of growth unknown */ -#undef STACK_DIRECTION - /* Define to 1 if you have the ANSI C header files. */ #undef STDC_HEADERS diff --git a/intl/configure b/intl/configure index 2f35993148e..be3f41a6829 100755 --- a/intl/configure +++ b/intl/configure @@ -644,7 +644,6 @@ INTLBISON LTLIBICONV LIBICONV GLIBC21 -ALLOCA RANLIB host_os host_vendor @@ -4282,192 +4281,6 @@ cat >>confdefs.h <<_ACEOF #define size_t unsigned int _ACEOF -fi - -# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works -# for constant arguments. Useless! -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working alloca.h" >&5 -$as_echo_n "checking for working alloca.h... " >&6; } -if ${ac_cv_working_alloca_h+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <alloca.h> -int -main () -{ -char *p = (char *) alloca (2 * sizeof (int)); - if (p) return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ac_cv_working_alloca_h=yes -else - ac_cv_working_alloca_h=no -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_alloca_h" >&5 -$as_echo "$ac_cv_working_alloca_h" >&6; } -if test $ac_cv_working_alloca_h = yes; then - -$as_echo "#define HAVE_ALLOCA_H 1" >>confdefs.h - -fi - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for alloca" >&5 -$as_echo_n "checking for alloca... " >&6; } -if ${ac_cv_func_alloca_works+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#ifdef __GNUC__ -# define alloca __builtin_alloca -#else -# ifdef _MSC_VER -# include <malloc.h> -# define alloca _alloca -# else -# ifdef HAVE_ALLOCA_H -# include <alloca.h> -# else -# ifdef _AIX - #pragma alloca -# else -# ifndef alloca /* predefined by HP cc +Olibcalls */ -void *alloca (size_t); -# endif -# endif -# endif -# endif -#endif - -int -main () -{ -char *p = (char *) alloca (1); - if (p) return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ac_cv_func_alloca_works=yes -else - ac_cv_func_alloca_works=no -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_alloca_works" >&5 -$as_echo "$ac_cv_func_alloca_works" >&6; } - -if test $ac_cv_func_alloca_works = yes; then - -$as_echo "#define HAVE_ALLOCA 1" >>confdefs.h - -else - # The SVR3 libPW and SVR4 libucb both contain incompatible functions -# that cause trouble. Some versions do not even contain alloca or -# contain a buggy version. If you still want to use their alloca, -# use ar to extract alloca.o from them instead of compiling alloca.c. - -ALLOCA=\${LIBOBJDIR}alloca.$ac_objext - -$as_echo "#define C_ALLOCA 1" >>confdefs.h - - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether \`alloca.c' needs Cray hooks" >&5 -$as_echo_n "checking whether \`alloca.c' needs Cray hooks... " >&6; } -if ${ac_cv_os_cray+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#if defined CRAY && ! defined CRAY2 -webecray -#else -wenotbecray -#endif - -_ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "webecray" >/dev/null 2>&1; then : - ac_cv_os_cray=yes -else - ac_cv_os_cray=no -fi -rm -f conftest* - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_os_cray" >&5 -$as_echo "$ac_cv_os_cray" >&6; } -if test $ac_cv_os_cray = yes; then - for ac_func in _getb67 GETB67 getb67; do - as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` -ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" -if eval test \"x\$"$as_ac_var"\" = x"yes"; then : - -cat >>confdefs.h <<_ACEOF -#define CRAY_STACKSEG_END $ac_func -_ACEOF - - break -fi - - done -fi - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking stack direction for C alloca" >&5 -$as_echo_n "checking stack direction for C alloca... " >&6; } -if ${ac_cv_c_stack_direction+:} false; then : - $as_echo_n "(cached) " >&6 -else - if test "$cross_compiling" = yes; then : - ac_cv_c_stack_direction=0 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -$ac_includes_default -int -find_stack_direction (int *addr, int depth) -{ - 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; -} - -int -main (int argc, char **argv) -{ - return find_stack_direction (0, argc + !argv + 20) < 0; -} -_ACEOF -if ac_fn_c_try_run "$LINENO"; then : - ac_cv_c_stack_direction=1 -else - ac_cv_c_stack_direction=-1 -fi -rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ - conftest.$ac_objext conftest.beam conftest.$ac_ext -fi - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_stack_direction" >&5 -$as_echo "$ac_cv_c_stack_direction" >&6; } -cat >>confdefs.h <<_ACEOF -#define STACK_DIRECTION $ac_cv_c_stack_direction -_ACEOF - - fi diff --git a/libcpp/config.in b/libcpp/config.in index 89aa6a1f30e..36efbfa9e09 100644 --- a/libcpp/config.in +++ b/libcpp/config.in @@ -6,14 +6,6 @@ /* Define to 1 if you want more run-time sanity checks. */ #undef CHECKING_P -/* Define to one of `_getb67', `GETB67', `getb67' for Cray-2 and Cray-YMP - systems. This function is required for `alloca.c' support on those systems. - */ -#undef CRAY_STACKSEG_END - -/* Define to 1 if using `alloca.c'. */ -#undef C_ALLOCA - /* Define if you want assertions enabled. This is a cheap check. */ #undef ENABLE_ASSERT_CHECKING @@ -31,13 +23,6 @@ possible memory leaks because of libcpp use of interior pointers. */ #undef ENABLE_VALGRIND_CHECKING -/* Define to 1 if you have `alloca', as a function or macro. */ -#undef HAVE_ALLOCA - -/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix). - */ -#undef HAVE_ALLOCA_H - /* Define to 1 if you have the `clearerr_unlocked' function. */ #undef HAVE_CLEARERR_UNLOCKED @@ -264,14 +249,6 @@ /* The size of `long', as computed by sizeof. */ #undef SIZEOF_LONG -/* If using the C implementation of alloca, define if you know the - direction of stack growth for your system; otherwise it will be - automatically deduced at runtime. - STACK_DIRECTION > 0 => grows toward higher addresses - STACK_DIRECTION < 0 => grows toward lower addresses - STACK_DIRECTION = 0 => direction of growth unknown */ -#undef STACK_DIRECTION - /* Define to 1 if you have the ANSI C header files. */ #undef STDC_HEADERS diff --git a/libcpp/configure b/libcpp/configure index a7aa35c5be0..16452b1af6e 100755 --- a/libcpp/configure +++ b/libcpp/configure @@ -641,7 +641,6 @@ INCINTL LIBINTL_DEP LIBINTL USE_NLS -ALLOCA LIBOBJS CXXDEPMODE DEPDIR @@ -6103,192 +6102,6 @@ _ACEOF # Checks for library functions. -# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works -# for constant arguments. Useless! -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working alloca.h" >&5 -$as_echo_n "checking for working alloca.h... " >&6; } -if ${ac_cv_working_alloca_h+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <alloca.h> -int -main () -{ -char *p = (char *) alloca (2 * sizeof (int)); - if (p) return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ac_cv_working_alloca_h=yes -else - ac_cv_working_alloca_h=no -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_alloca_h" >&5 -$as_echo "$ac_cv_working_alloca_h" >&6; } -if test $ac_cv_working_alloca_h = yes; then - -$as_echo "#define HAVE_ALLOCA_H 1" >>confdefs.h - -fi - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for alloca" >&5 -$as_echo_n "checking for alloca... " >&6; } -if ${ac_cv_func_alloca_works+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#ifdef __GNUC__ -# define alloca __builtin_alloca -#else -# ifdef _MSC_VER -# include <malloc.h> -# define alloca _alloca -# else -# ifdef HAVE_ALLOCA_H -# include <alloca.h> -# else -# ifdef _AIX - #pragma alloca -# else -# ifndef alloca /* predefined by HP cc +Olibcalls */ -void *alloca (size_t); -# endif -# endif -# endif -# endif -#endif - -int -main () -{ -char *p = (char *) alloca (1); - if (p) return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ac_cv_func_alloca_works=yes -else - ac_cv_func_alloca_works=no -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_alloca_works" >&5 -$as_echo "$ac_cv_func_alloca_works" >&6; } - -if test $ac_cv_func_alloca_works = yes; then - -$as_echo "#define HAVE_ALLOCA 1" >>confdefs.h - -else - # The SVR3 libPW and SVR4 libucb both contain incompatible functions -# that cause trouble. Some versions do not even contain alloca or -# contain a buggy version. If you still want to use their alloca, -# use ar to extract alloca.o from them instead of compiling alloca.c. - -ALLOCA=\${LIBOBJDIR}alloca.$ac_objext - -$as_echo "#define C_ALLOCA 1" >>confdefs.h - - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether \`alloca.c' needs Cray hooks" >&5 -$as_echo_n "checking whether \`alloca.c' needs Cray hooks... " >&6; } -if ${ac_cv_os_cray+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#if defined CRAY && ! defined CRAY2 -webecray -#else -wenotbecray -#endif - -_ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "webecray" >/dev/null 2>&1; then : - ac_cv_os_cray=yes -else - ac_cv_os_cray=no -fi -rm -f conftest* - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_os_cray" >&5 -$as_echo "$ac_cv_os_cray" >&6; } -if test $ac_cv_os_cray = yes; then - for ac_func in _getb67 GETB67 getb67; do - as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` -ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" -if eval test \"x\$"$as_ac_var"\" = x"yes"; then : - -cat >>confdefs.h <<_ACEOF -#define CRAY_STACKSEG_END $ac_func -_ACEOF - - break -fi - - done -fi - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking stack direction for C alloca" >&5 -$as_echo_n "checking stack direction for C alloca... " >&6; } -if ${ac_cv_c_stack_direction+:} false; then : - $as_echo_n "(cached) " >&6 -else - if test "$cross_compiling" = yes; then : - ac_cv_c_stack_direction=0 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -$ac_includes_default -int -find_stack_direction (int *addr, int depth) -{ - 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; -} - -int -main (int argc, char **argv) -{ - return find_stack_direction (0, argc + !argv + 20) < 0; -} -_ACEOF -if ac_fn_c_try_run "$LINENO"; then : - ac_cv_c_stack_direction=1 -else - ac_cv_c_stack_direction=-1 -fi -rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ - conftest.$ac_objext conftest.beam conftest.$ac_ext -fi - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_stack_direction" >&5 -$as_echo "$ac_cv_c_stack_direction" >&6; } -cat >>confdefs.h <<_ACEOF -#define STACK_DIRECTION $ac_cv_c_stack_direction -_ACEOF - - -fi - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 $as_echo_n "checking for ANSI C header files... " >&6; } if ${ac_cv_header_stdc+:} false; then : diff --git a/libcpp/configure.ac b/libcpp/configure.ac index 1779562a3a7..199b8b0393d 100644 --- a/libcpp/configure.ac +++ b/libcpp/configure.ac @@ -80,7 +80,6 @@ AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, getopt, vasprintf]) AC_CHECK_DECLS(m4_split(m4_normalize(libcpp_UNLOCKED_FUNCS))) # Checks for library functions. -AC_FUNC_ALLOCA AC_HEADER_STDC AM_LANGINFO_CODESET ZW_GNU_GETTEXT_SISTER_DIR diff --git a/libffi/Makefile.in b/libffi/Makefile.in index 72f8678d38a..c0451a2d4b4 100644 --- a/libffi/Makefile.in +++ b/libffi/Makefile.in @@ -302,7 +302,6 @@ CTAGS = ctags CSCOPE = cscope DIST_SUBDIRS = $(SUBDIRS) ACLOCAL = @ACLOCAL@ -ALLOCA = @ALLOCA@ AMTAR = @AMTAR@ AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@ AM_LTLDFLAGS = @AM_LTLDFLAGS@ diff --git a/libffi/configure b/libffi/configure index 77e91a1ef6f..2b86b3d0c1e 100755 --- a/libffi/configure +++ b/libffi/configure @@ -656,7 +656,6 @@ FFI_EXEC_TRAMPOLINE_TABLE_FALSE FFI_EXEC_TRAMPOLINE_TABLE_TRUE HAVE_LONG_DOUBLE_VARIANT HAVE_LONG_DOUBLE -ALLOCA AM_LTLDFLAGS AM_RUNTESTFLAGS TESTSUBDIR_FALSE @@ -2229,60 +2228,6 @@ fi eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno } # ac_fn_c_check_header_mongrel - -# ac_fn_c_check_type LINENO TYPE VAR INCLUDES -# ------------------------------------------- -# Tests whether TYPE exists after having included INCLUDES, setting cache -# variable VAR accordingly. -ac_fn_c_check_type () -{ - as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 -$as_echo_n "checking for $2... " >&6; } -if eval \${$3+:} false; then : - $as_echo_n "(cached) " >&6 -else - eval "$3=no" - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -$4 -int -main () -{ -if (sizeof ($2)) - return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -$4 -int -main () -{ -if (sizeof (($2))) - return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - -else - eval "$3=yes" -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext -fi -eval ac_res=\$$3 - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 -$as_echo "$ac_res" >&6; } - eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno - -} # ac_fn_c_check_type cat >config.log <<_ACEOF This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. @@ -11557,7 +11502,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11560 "configure" +#line 11505 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -11663,7 +11608,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11666 "configure" +#line 11611 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -15291,203 +15236,6 @@ _ACEOF fi done -ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default" -if test "x$ac_cv_type_size_t" = xyes; then : - -else - -cat >>confdefs.h <<_ACEOF -#define size_t unsigned int -_ACEOF - -fi - -# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works -# for constant arguments. Useless! -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working alloca.h" >&5 -$as_echo_n "checking for working alloca.h... " >&6; } -if ${ac_cv_working_alloca_h+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <alloca.h> -int -main () -{ -char *p = (char *) alloca (2 * sizeof (int)); - if (p) return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ac_cv_working_alloca_h=yes -else - ac_cv_working_alloca_h=no -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_alloca_h" >&5 -$as_echo "$ac_cv_working_alloca_h" >&6; } -if test $ac_cv_working_alloca_h = yes; then - -$as_echo "#define HAVE_ALLOCA_H 1" >>confdefs.h - -fi - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for alloca" >&5 -$as_echo_n "checking for alloca... " >&6; } -if ${ac_cv_func_alloca_works+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#ifdef __GNUC__ -# define alloca __builtin_alloca -#else -# ifdef _MSC_VER -# include <malloc.h> -# define alloca _alloca -# else -# ifdef HAVE_ALLOCA_H -# include <alloca.h> -# else -# ifdef _AIX - #pragma alloca -# else -# ifndef alloca /* predefined by HP cc +Olibcalls */ -void *alloca (size_t); -# endif -# endif -# endif -# endif -#endif - -int -main () -{ -char *p = (char *) alloca (1); - if (p) return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ac_cv_func_alloca_works=yes -else - ac_cv_func_alloca_works=no -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_alloca_works" >&5 -$as_echo "$ac_cv_func_alloca_works" >&6; } - -if test $ac_cv_func_alloca_works = yes; then - -$as_echo "#define HAVE_ALLOCA 1" >>confdefs.h - -else - # The SVR3 libPW and SVR4 libucb both contain incompatible functions -# that cause trouble. Some versions do not even contain alloca or -# contain a buggy version. If you still want to use their alloca, -# use ar to extract alloca.o from them instead of compiling alloca.c. - -ALLOCA=\${LIBOBJDIR}alloca.$ac_objext - -$as_echo "#define C_ALLOCA 1" >>confdefs.h - - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether \`alloca.c' needs Cray hooks" >&5 -$as_echo_n "checking whether \`alloca.c' needs Cray hooks... " >&6; } -if ${ac_cv_os_cray+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#if defined CRAY && ! defined CRAY2 -webecray -#else -wenotbecray -#endif - -_ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "webecray" >/dev/null 2>&1; then : - ac_cv_os_cray=yes -else - ac_cv_os_cray=no -fi -rm -f conftest* - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_os_cray" >&5 -$as_echo "$ac_cv_os_cray" >&6; } -if test $ac_cv_os_cray = yes; then - for ac_func in _getb67 GETB67 getb67; do - as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` -ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" -if eval test \"x\$"$as_ac_var"\" = x"yes"; then : - -cat >>confdefs.h <<_ACEOF -#define CRAY_STACKSEG_END $ac_func -_ACEOF - - break -fi - - done -fi - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking stack direction for C alloca" >&5 -$as_echo_n "checking stack direction for C alloca... " >&6; } -if ${ac_cv_c_stack_direction+:} false; then : - $as_echo_n "(cached) " >&6 -else - if test "$cross_compiling" = yes; then : - ac_cv_c_stack_direction=0 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -$ac_includes_default -int -find_stack_direction (int *addr, int depth) -{ - 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; -} - -int -main (int argc, char **argv) -{ - return find_stack_direction (0, argc + !argv + 20) < 0; -} -_ACEOF -if ac_fn_c_try_run "$LINENO"; then : - ac_cv_c_stack_direction=1 -else - ac_cv_c_stack_direction=-1 -fi -rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ - conftest.$ac_objext conftest.beam conftest.$ac_ext -fi - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_stack_direction" >&5 -$as_echo "$ac_cv_c_stack_direction" >&6; } -cat >>confdefs.h <<_ACEOF -#define STACK_DIRECTION $ac_cv_c_stack_direction -_ACEOF - - -fi - # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects diff --git a/libffi/configure.ac b/libffi/configure.ac index d28981b5629..efac041b7de 100644 --- a/libffi/configure.ac +++ b/libffi/configure.ac @@ -84,7 +84,6 @@ AC_SUBST(AM_LTLDFLAGS) AC_HEADER_STDC AC_CHECK_FUNCS(memcpy) -AC_FUNC_ALLOCA AC_CHECK_SIZEOF(double) AC_CHECK_SIZEOF(long double) diff --git a/libffi/fficonfig.h.in b/libffi/fficonfig.h.in index 2cf8de93061..eb1b440f3e0 100644 --- a/libffi/fficonfig.h.in +++ b/libffi/fficonfig.h.in @@ -3,14 +3,6 @@ /* Define if building universal (internal helper macro) */ #undef AC_APPLE_UNIVERSAL_BUILD -/* Define to one of `_getb67', `GETB67', `getb67' for Cray-2 and Cray-YMP - systems. This function is required for `alloca.c' support on those systems. - */ -#undef CRAY_STACKSEG_END - -/* Define to 1 if using `alloca.c'. */ -#undef C_ALLOCA - /* Define to the flags needed for the .section .eh_frame directive. */ #undef EH_FRAME_FLAGS @@ -32,13 +24,6 @@ /* Define this if you do not want support for aggregate types. */ #undef FFI_NO_STRUCTS -/* Define to 1 if you have `alloca', as a function or macro. */ -#undef HAVE_ALLOCA - -/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix). - */ -#undef HAVE_ALLOCA_H - /* Define if your assembler supports .cfi_* directives. */ #undef HAVE_AS_CFI_PSEUDO_OP @@ -158,14 +143,6 @@ /* The size of `size_t', as computed by sizeof. */ #undef SIZEOF_SIZE_T -/* If using the C implementation of alloca, define if you know the - direction of stack growth for your system; otherwise it will be - automatically deduced at runtime. - STACK_DIRECTION > 0 => grows toward higher addresses - STACK_DIRECTION < 0 => grows toward lower addresses - STACK_DIRECTION = 0 => direction of growth unknown */ -#undef STACK_DIRECTION - /* Define to 1 if you have the ANSI C header files. */ #undef STDC_HEADERS @@ -188,9 +165,6 @@ # endif #endif -/* Define to `unsigned int' if <sys/types.h> does not define. */ -#undef size_t - #ifdef HAVE_HIDDEN_VISIBILITY_ATTRIBUTE #ifdef LIBFFI_ASM diff --git a/libffi/include/Makefile.in b/libffi/include/Makefile.in index 5dabdffa0e9..8381752a57a 100644 --- a/libffi/include/Makefile.in +++ b/libffi/include/Makefile.in @@ -176,7 +176,6 @@ am__define_uniq_tagged_files = \ ETAGS = etags CTAGS = ctags ACLOCAL = @ACLOCAL@ -ALLOCA = @ALLOCA@ AMTAR = @AMTAR@ AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@ AM_LTLDFLAGS = @AM_LTLDFLAGS@ diff --git a/libffi/man/Makefile.in b/libffi/man/Makefile.in index 1a21f38ff15..7efe9d816ea 100644 --- a/libffi/man/Makefile.in +++ b/libffi/man/Makefile.in @@ -158,7 +158,6 @@ NROFF = nroff MANS = $(man_MANS) am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP) ACLOCAL = @ACLOCAL@ -ALLOCA = @ALLOCA@ AMTAR = @AMTAR@ AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@ AM_LTLDFLAGS = @AM_LTLDFLAGS@ diff --git a/libffi/testsuite/Makefile.in b/libffi/testsuite/Makefile.in index 59f09bbec50..852dfe2a958 100644 --- a/libffi/testsuite/Makefile.in +++ b/libffi/testsuite/Makefile.in @@ -129,7 +129,6 @@ am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP) DEJATOOL = $(PACKAGE) RUNTESTDEFAULTFLAGS = --tool $$tool --srcdir $$srcdir ACLOCAL = @ACLOCAL@ -ALLOCA = @ALLOCA@ AMTAR = @AMTAR@ AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@ AM_LTLDFLAGS = @AM_LTLDFLAGS@ diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in index fe738d0db43..146d74abdfd 100644 --- a/libiberty/Makefile.in +++ b/libiberty/Makefile.in @@ -122,7 +122,7 @@ COMPILE.c = $(CC) -c @DEFS@ $(CFLAGS) $(CPPFLAGS) -I. -I$(INCDIR) \ # (alphabetical), and add them to REQUIRED_OFILES, or # CONFIGURED_OFILES and funcs in configure.ac. Also run "make maint-deps" # to build the new rules. -CFILES = alloca.c argv.c asprintf.c atexit.c \ +CFILES = argv.c asprintf.c atexit.c \ basename.c bcmp.c bcopy.c bsearch.c bzero.c \ calloc.c choose-temp.c clock.c concat.c cp-demangle.c \ cp-demint.c cplus-dem.c crc32.c \ @@ -165,7 +165,7 @@ CFILES = alloca.c argv.c asprintf.c atexit.c \ # first and by compile time to optimize parallel builds. REQUIRED_OFILES = \ ./regex.$(objext) ./cplus-dem.$(objext) ./cp-demangle.$(objext) \ - ./md5.$(objext) ./sha1.$(objext) ./alloca.$(objext) \ + ./md5.$(objext) ./sha1.$(objext) \ ./argv.$(objext) \ ./choose-temp.$(objext) ./concat.$(objext) \ ./cp-demint.$(objext) ./crc32.$(objext) ./d-demangle.$(objext) \ @@ -522,16 +522,6 @@ $(CONFIGURED_OFILES): stamp-picdir stamp-noasandir else true; fi $(COMPILE.c) $(srcdir)/_doprnt.c $(OUTPUT_OPTION) -./alloca.$(objext): $(srcdir)/alloca.c config.h $(INCDIR)/ansidecl.h \ - $(INCDIR)/libiberty.h - if [ x"$(PICFLAG)" != x ]; then \ - $(COMPILE.c) $(PICFLAG) $(srcdir)/alloca.c -o pic/$@; \ - else true; fi - if [ x"$(NOASANFLAG)" != x ]; then \ - $(COMPILE.c) $(PICFLAG) $(NOASANFLAG) $(srcdir)/alloca.c -o noasan/$@; \ - else true; fi - $(COMPILE.c) $(srcdir)/alloca.c $(OUTPUT_OPTION) - ./argv.$(objext): $(srcdir)/argv.c config.h $(INCDIR)/ansidecl.h \ $(INCDIR)/libiberty.h $(INCDIR)/safe-ctype.h if [ x"$(PICFLAG)" != x ]; then \ diff --git a/libiberty/aclocal.m4 b/libiberty/aclocal.m4 index bf8a907100f..7d4048e4ab2 100644 --- a/libiberty/aclocal.m4 +++ b/libiberty/aclocal.m4 @@ -121,55 +121,3 @@ if test $libiberty_cv_decl_needed_$1 = yes; then [Define if $1 is not declared in system header files.]) fi ])dnl - -# We always want a C version of alloca() compiled into libiberty, -# because native-compiler support for the real alloca is so !@#$% -# unreliable that GCC has decided to use it only when being compiled -# by GCC. This is the part of AC_FUNC_ALLOCA that calculates the -# information alloca.c needs. -AC_DEFUN(libiberty_AC_FUNC_C_ALLOCA, -[AC_CACHE_CHECK(whether alloca needs Cray hooks, ac_cv_os_cray, -[AC_EGREP_CPP(webecray, -[#if defined(CRAY) && ! defined(CRAY2) -webecray -#else -wenotbecray -#endif -], ac_cv_os_cray=yes, ac_cv_os_cray=no)]) -if test $ac_cv_os_cray = yes; then - for ac_func in _getb67 GETB67 getb67; do - AC_CHECK_FUNC($ac_func, - [AC_DEFINE_UNQUOTED(CRAY_STACKSEG_END, $ac_func, - [Define to one of _getb67, GETB67, getb67 for Cray-2 and Cray-YMP - systems. This function is required for alloca.c support on those - systems.]) break]) - done -fi - -AC_CACHE_CHECK(stack direction for C alloca, ac_cv_c_stack_direction, -[AC_TRY_RUN([find_stack_direction () -{ - static char *addr = 0; - auto char dummy; - if (addr == 0) - { - addr = &dummy; - return find_stack_direction (); - } - else - return (&dummy > addr) ? 1 : -1; -} -main () -{ - exit (find_stack_direction() < 0); -}], - ac_cv_c_stack_direction=1, - ac_cv_c_stack_direction=-1, - ac_cv_c_stack_direction=0)]) -AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction, - [Define if you know the direction of stack growth for your system; - otherwise it will be automatically deduced at run-time. - STACK_DIRECTION > 0 => grows toward higher addresses - STACK_DIRECTION < 0 => grows toward lower addresses - STACK_DIRECTION = 0 => direction of growth unknown]) -]) diff --git a/libiberty/config.in b/libiberty/config.in index f7052b5d958..7b16398e8ca 100644 --- a/libiberty/config.in +++ b/libiberty/config.in @@ -3,10 +3,6 @@ /* Define if building universal (internal helper macro) */ #undef AC_APPLE_UNIVERSAL_BUILD -/* Define to one of _getb67, GETB67, getb67 for Cray-2 and Cray-YMP systems. - This function is required for alloca.c support on those systems. */ -#undef CRAY_STACKSEG_END - /* Define to 1 if you have the <alloca.h> header file. */ #undef HAVE_ALLOCA_H @@ -480,12 +476,6 @@ /* The size of `size_t', as computed by sizeof. */ #undef SIZEOF_SIZE_T -/* Define if you know the direction of stack growth for your system; otherwise - it will be automatically deduced at run-time. STACK_DIRECTION > 0 => grows - toward higher addresses STACK_DIRECTION < 0 => grows toward lower addresses - STACK_DIRECTION = 0 => direction of growth unknown */ -#undef STACK_DIRECTION - /* Define to 1 if you have the ANSI C header files. */ #undef STDC_HEADERS diff --git a/libiberty/configure b/libiberty/configure index 7a34dabec32..7f161c2dbaa 100755 --- a/libiberty/configure +++ b/libiberty/configure @@ -6482,91 +6482,6 @@ esac fi done - { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether alloca needs Cray hooks" >&5 -$as_echo_n "checking whether alloca needs Cray hooks... " >&6; } -if ${ac_cv_os_cray+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#if defined(CRAY) && ! defined(CRAY2) -webecray -#else -wenotbecray -#endif - -_ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "webecray" >/dev/null 2>&1; then : - ac_cv_os_cray=yes -else - ac_cv_os_cray=no -fi -rm -f conftest* - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_os_cray" >&5 -$as_echo "$ac_cv_os_cray" >&6; } -if test $ac_cv_os_cray = yes; then - for ac_func in _getb67 GETB67 getb67; do - as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` -ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" -if eval test \"x\$"$as_ac_var"\" = x"yes"; then : - -cat >>confdefs.h <<_ACEOF -#define CRAY_STACKSEG_END $ac_func -_ACEOF - break -fi - - done -fi - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking stack direction for C alloca" >&5 -$as_echo_n "checking stack direction for C alloca... " >&6; } -if ${ac_cv_c_stack_direction+:} false; then : - $as_echo_n "(cached) " >&6 -else - if test "$cross_compiling" = yes; then : - ac_cv_c_stack_direction=0 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -find_stack_direction () -{ - static char *addr = 0; - auto char dummy; - if (addr == 0) - { - addr = &dummy; - return find_stack_direction (); - } - else - return (&dummy > addr) ? 1 : -1; -} -main () -{ - exit (find_stack_direction() < 0); -} -_ACEOF -if ac_fn_c_try_run "$LINENO"; then : - ac_cv_c_stack_direction=1 -else - ac_cv_c_stack_direction=-1 -fi -rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ - conftest.$ac_objext conftest.beam conftest.$ac_ext -fi - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_stack_direction" >&5 -$as_echo "$ac_cv_c_stack_direction" >&6; } - -cat >>confdefs.h <<_ACEOF -#define STACK_DIRECTION $ac_cv_c_stack_direction -_ACEOF - - for ac_header in vfork.h do : ac_fn_c_check_header_preproc "$LINENO" "vfork.h" "ac_cv_header_vfork_h" diff --git a/libiberty/configure.ac b/libiberty/configure.ac index f1ce76010c9..b269c4c2f9a 100644 --- a/libiberty/configure.ac +++ b/libiberty/configure.ac @@ -644,7 +644,6 @@ if test -z "${setobjs}"; then # tests. This will only work if the compiler works. AC_ISC_POSIX AC_REPLACE_FUNCS($funcs) - libiberty_AC_FUNC_C_ALLOCA AC_FUNC_FORK if test $ac_cv_func_vfork_works = no; then AC_LIBOBJ([vfork]) diff --git a/liboffloadmic/Makefile.in b/liboffloadmic/Makefile.in index 52673bc2b3f..7a83feff34b 100644 --- a/liboffloadmic/Makefile.in +++ b/liboffloadmic/Makefile.in @@ -337,7 +337,6 @@ CTAGS = ctags CSCOPE = cscope DIST_SUBDIRS = $(SUBDIRS) ACLOCAL = @ACLOCAL@ -ALLOCA = @ALLOCA@ AMTAR = @AMTAR@ AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@ AR = @AR@ diff --git a/liboffloadmic/configure b/liboffloadmic/configure index 3d99ffd3b4e..ea0fc6897e0 100644 --- a/liboffloadmic/configure +++ b/liboffloadmic/configure @@ -658,7 +658,6 @@ SED LIBTOOL LIBOFFLOADMIC_HOST_FALSE LIBOFFLOADMIC_HOST_TRUE -ALLOCA EGREP GREP CPP @@ -1612,60 +1611,6 @@ fi } # ac_fn_cxx_try_compile -# ac_fn_c_check_type LINENO TYPE VAR INCLUDES -# ------------------------------------------- -# Tests whether TYPE exists after having included INCLUDES, setting cache -# variable VAR accordingly. -ac_fn_c_check_type () -{ - as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 -$as_echo_n "checking for $2... " >&6; } -if eval \${$3+:} false; then : - $as_echo_n "(cached) " >&6 -else - eval "$3=no" - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -$4 -int -main () -{ -if (sizeof ($2)) - return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -$4 -int -main () -{ -if (sizeof (($2))) - return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - -else - eval "$3=yes" -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext -fi -eval ac_res=\$$3 - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 -$as_echo "$ac_res" >&6; } - eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno - -} # ac_fn_c_check_type - # ac_fn_c_try_cpp LINENO # ---------------------- # Try to preprocess conftest.$ac_ext, and return whether this succeeded. @@ -1703,6 +1648,93 @@ fi } # ac_fn_c_try_cpp +# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES +# ------------------------------------------------------- +# Tests whether HEADER exists, giving a warning if it cannot be compiled using +# the include files in INCLUDES and setting the cache variable VAR +# accordingly. +ac_fn_c_check_header_mongrel () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + if eval \${$3+:} false; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } +else + # Is the header compilable? +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5 +$as_echo_n "checking $2 usability... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +#include <$2> +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_header_compiler=yes +else + ac_header_compiler=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5 +$as_echo "$ac_header_compiler" >&6; } + +# Is the header present? +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5 +$as_echo_n "checking $2 presence... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <$2> +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + ac_header_preproc=yes +else + ac_header_preproc=no +fi +rm -f conftest.err conftest.i conftest.$ac_ext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5 +$as_echo "$ac_header_preproc" >&6; } + +# So? What about this header? +case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #(( + yes:no: ) + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5 +$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5 +$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;} + ;; + no:yes:* ) + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5 +$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: check for missing prerequisite headers?" >&5 +$as_echo "$as_me: WARNING: $2: check for missing prerequisite headers?" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5 +$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&5 +$as_echo "$as_me: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5 +$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;} + ;; +esac + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + eval "$3=\$ac_header_compiler" +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } +fi + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_header_mongrel + # ac_fn_c_try_run LINENO # ---------------------- # Try to link conftest.$ac_ext, and return whether this succeeded. Assumes @@ -1889,93 +1921,6 @@ $as_echo "$ac_res" >&6; } } # ac_fn_c_check_func -# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES -# ------------------------------------------------------- -# Tests whether HEADER exists, giving a warning if it cannot be compiled using -# the include files in INCLUDES and setting the cache variable VAR -# accordingly. -ac_fn_c_check_header_mongrel () -{ - as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack - if eval \${$3+:} false; then : - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 -$as_echo_n "checking for $2... " >&6; } -if eval \${$3+:} false; then : - $as_echo_n "(cached) " >&6 -fi -eval ac_res=\$$3 - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 -$as_echo "$ac_res" >&6; } -else - # Is the header compilable? -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5 -$as_echo_n "checking $2 usability... " >&6; } -cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -$4 -#include <$2> -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - ac_header_compiler=yes -else - ac_header_compiler=no -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5 -$as_echo "$ac_header_compiler" >&6; } - -# Is the header present? -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5 -$as_echo_n "checking $2 presence... " >&6; } -cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <$2> -_ACEOF -if ac_fn_c_try_cpp "$LINENO"; then : - ac_header_preproc=yes -else - ac_header_preproc=no -fi -rm -f conftest.err conftest.i conftest.$ac_ext -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5 -$as_echo "$ac_header_preproc" >&6; } - -# So? What about this header? -case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #(( - yes:no: ) - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5 -$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;} - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5 -$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;} - ;; - no:yes:* ) - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5 -$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;} - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: check for missing prerequisite headers?" >&5 -$as_echo "$as_me: WARNING: $2: check for missing prerequisite headers?" >&2;} - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5 -$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;} - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&5 -$as_echo "$as_me: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&2;} - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5 -$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;} - ;; -esac - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 -$as_echo_n "checking for $2... " >&6; } -if eval \${$3+:} false; then : - $as_echo_n "(cached) " >&6 -else - eval "$3=\$ac_header_compiler" -fi -eval ac_res=\$$3 - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 -$as_echo "$ac_res" >&6; } -fi - eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno - -} # ac_fn_c_check_header_mongrel - # ac_fn_cxx_try_cpp LINENO # ------------------------ # Try to preprocess conftest.$ac_ext, and return whether this succeeded. @@ -5025,203 +4970,6 @@ fi done -ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default" -if test "x$ac_cv_type_size_t" = xyes; then : - -else - -cat >>confdefs.h <<_ACEOF -#define size_t unsigned int -_ACEOF - -fi - -# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works -# for constant arguments. Useless! -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working alloca.h" >&5 -$as_echo_n "checking for working alloca.h... " >&6; } -if ${ac_cv_working_alloca_h+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <alloca.h> -int -main () -{ -char *p = (char *) alloca (2 * sizeof (int)); - if (p) return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ac_cv_working_alloca_h=yes -else - ac_cv_working_alloca_h=no -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_alloca_h" >&5 -$as_echo "$ac_cv_working_alloca_h" >&6; } -if test $ac_cv_working_alloca_h = yes; then - -$as_echo "#define HAVE_ALLOCA_H 1" >>confdefs.h - -fi - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for alloca" >&5 -$as_echo_n "checking for alloca... " >&6; } -if ${ac_cv_func_alloca_works+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#ifdef __GNUC__ -# define alloca __builtin_alloca -#else -# ifdef _MSC_VER -# include <malloc.h> -# define alloca _alloca -# else -# ifdef HAVE_ALLOCA_H -# include <alloca.h> -# else -# ifdef _AIX - #pragma alloca -# else -# ifndef alloca /* predefined by HP cc +Olibcalls */ -void *alloca (size_t); -# endif -# endif -# endif -# endif -#endif - -int -main () -{ -char *p = (char *) alloca (1); - if (p) return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ac_cv_func_alloca_works=yes -else - ac_cv_func_alloca_works=no -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_alloca_works" >&5 -$as_echo "$ac_cv_func_alloca_works" >&6; } - -if test $ac_cv_func_alloca_works = yes; then - -$as_echo "#define HAVE_ALLOCA 1" >>confdefs.h - -else - # The SVR3 libPW and SVR4 libucb both contain incompatible functions -# that cause trouble. Some versions do not even contain alloca or -# contain a buggy version. If you still want to use their alloca, -# use ar to extract alloca.o from them instead of compiling alloca.c. - -ALLOCA=\${LIBOBJDIR}alloca.$ac_objext - -$as_echo "#define C_ALLOCA 1" >>confdefs.h - - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether \`alloca.c' needs Cray hooks" >&5 -$as_echo_n "checking whether \`alloca.c' needs Cray hooks... " >&6; } -if ${ac_cv_os_cray+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#if defined CRAY && ! defined CRAY2 -webecray -#else -wenotbecray -#endif - -_ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "webecray" >/dev/null 2>&1; then : - ac_cv_os_cray=yes -else - ac_cv_os_cray=no -fi -rm -f conftest* - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_os_cray" >&5 -$as_echo "$ac_cv_os_cray" >&6; } -if test $ac_cv_os_cray = yes; then - for ac_func in _getb67 GETB67 getb67; do - as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` -ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" -if eval test \"x\$"$as_ac_var"\" = x"yes"; then : - -cat >>confdefs.h <<_ACEOF -#define CRAY_STACKSEG_END $ac_func -_ACEOF - - break -fi - - done -fi - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking stack direction for C alloca" >&5 -$as_echo_n "checking stack direction for C alloca... " >&6; } -if ${ac_cv_c_stack_direction+:} false; then : - $as_echo_n "(cached) " >&6 -else - if test "$cross_compiling" = yes; then : - ac_cv_c_stack_direction=0 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -$ac_includes_default -int -find_stack_direction (int *addr, int depth) -{ - 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; -} - -int -main (int argc, char **argv) -{ - return find_stack_direction (0, argc + !argv + 20) < 0; -} -_ACEOF -if ac_fn_c_try_run "$LINENO"; then : - ac_cv_c_stack_direction=1 -else - ac_cv_c_stack_direction=-1 -fi -rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ - conftest.$ac_objext conftest.beam conftest.$ac_ext -fi - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_stack_direction" >&5 -$as_echo "$ac_cv_c_stack_direction" >&6; } -cat >>confdefs.h <<_ACEOF -#define STACK_DIRECTION $ac_cv_c_stack_direction -_ACEOF - - -fi - for ac_header in mm_malloc.h do : ac_fn_c_check_header_mongrel "$LINENO" "mm_malloc.h" "ac_cv_header_mm_malloc_h" "$ac_includes_default" @@ -11403,7 +11151,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11406 "configure" +#line 11154 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -11509,7 +11257,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11512 "configure" +#line 11260 "configure" #include "confdefs.h" #if HAVE_DLFCN_H diff --git a/liboffloadmic/configure.ac b/liboffloadmic/configure.ac index 5ee943a9078..4af5e38c702 100644 --- a/liboffloadmic/configure.ac +++ b/liboffloadmic/configure.ac @@ -42,7 +42,6 @@ AC_PROG_CXX AC_CONFIG_FILES([Makefile liboffloadmic_host.spec liboffloadmic_target.spec]) AM_ENABLE_MULTILIB(, ..) AC_CONFIG_SUBDIRS(plugin) -AC_FUNC_ALLOCA AC_CHECK_HEADERS([mm_malloc.h], [], [AC_MSG_ERROR(["Couldn't find mm_malloc.h"])]) AC_CHECK_FUNCS([__secure_getenv secure_getenv])