From de15ea94618495ad54ae04dc1a47f33134422335 Mon Sep 17 00:00:00 2001 From: Francois-Xavier Coudert Date: Wed, 16 Mar 2011 17:43:41 +0000 Subject: [PATCH] re PR libfortran/47883 (libgfortran configuration should use AC_LINK_IFELSE instead of AC_TRY_LINK) PR libfortran/47883 * acinclude.m4: Don't use AC_TRY_ macros. * configure.ac: Likewise. * configure: Regenerate. From-SVN: r171056 --- libgfortran/ChangeLog | 7 ++++++ libgfortran/acinclude.m4 | 52 +++++++++++++++++++++------------------- libgfortran/configure | 2 ++ libgfortran/configure.ac | 6 ++--- 4 files changed, 39 insertions(+), 28 deletions(-) diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog index 70c2b527d79..9723efe21ee 100644 --- a/libgfortran/ChangeLog +++ b/libgfortran/ChangeLog @@ -1,3 +1,10 @@ +2011-03-16 Francois-Xavier Coudert + + PR libfortran/47883 + * acinclude.m4: Don't use AC_TRY_ macros. + * configure.ac: Likewise. + * configure: Regenerate. + 2011-03-12 Thomas Koenig PR libfortran/48066 diff --git a/libgfortran/acinclude.m4 b/libgfortran/acinclude.m4 index 395a1eabe99..acd1d4dc81e 100644 --- a/libgfortran/acinclude.m4 +++ b/libgfortran/acinclude.m4 @@ -33,9 +33,9 @@ AC_DEFUN([LIBGFOR_CHECK_ATTRIBUTE_VISIBILITY], [ libgfor_cv_have_attribute_visibility, [ save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Werror" - AC_TRY_COMPILE([void __attribute__((visibility("hidden"))) foo(void) { }], - [], libgfor_cv_have_attribute_visibility=yes, - libgfor_cv_have_attribute_visibility=no) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void __attribute__((visibility("hidden"))) foo(void) { }]], [])], + libgfor_cv_have_attribute_visibility=yes, + libgfor_cv_have_attribute_visibility=no) CFLAGS="$save_CFLAGS"]) if test $libgfor_cv_have_attribute_visibility = yes; then AC_DEFINE(HAVE_ATTRIBUTE_VISIBILITY, 1, @@ -48,9 +48,9 @@ AC_DEFUN([LIBGFOR_CHECK_ATTRIBUTE_DLLEXPORT], [ libgfor_cv_have_attribute_dllexport, [ save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Werror" - AC_TRY_COMPILE([void __attribute__((dllexport)) foo(void) { }], - [], libgfor_cv_have_attribute_dllexport=yes, - libgfor_cv_have_attribute_dllexport=no) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void __attribute__((dllexport)) foo(void) { }]], [])], + libgfor_cv_have_attribute_dllexport=yes, + libgfor_cv_have_attribute_dllexport=no) CFLAGS="$save_CFLAGS"]) if test $libgfor_cv_have_attribute_dllexport = yes; then AC_DEFINE(HAVE_ATTRIBUTE_DLLEXPORT, 1, @@ -61,10 +61,10 @@ dnl Check whether the target supports symbol aliases. AC_DEFUN([LIBGFOR_CHECK_ATTRIBUTE_ALIAS], [ AC_CACHE_CHECK([whether the target supports symbol aliases], libgfor_cv_have_attribute_alias, [ - AC_TRY_LINK([ + AC_LINK_IFELSE([AC_LANG_PROGRAM([[ void foo(void) { } -extern void bar(void) __attribute__((alias("foo")));], - [bar();], libgfor_cv_have_attribute_alias=yes, libgfor_cv_have_attribute_alias=no)]) +extern void bar(void) __attribute__((alias("foo")));]], + [[bar();]])], libgfor_cv_have_attribute_alias=yes, libgfor_cv_have_attribute_alias=no)]) if test $libgfor_cv_have_attribute_alias = yes; then AC_DEFINE(HAVE_ATTRIBUTE_ALIAS, 1, [Define to 1 if the target supports __attribute__((alias(...))).]) @@ -74,9 +74,9 @@ dnl Check whether the target supports __sync_fetch_and_add. AC_DEFUN([LIBGFOR_CHECK_SYNC_FETCH_AND_ADD], [ AC_CACHE_CHECK([whether the target supports __sync_fetch_and_add], libgfor_cv_have_sync_fetch_and_add, [ - AC_TRY_LINK([int foovar = 0;], [ + AC_LINK_IFELSE([AC_LANG_PROGRAM([[int foovar = 0;]], [[ if (foovar <= 0) return __sync_fetch_and_add (&foovar, 1); -if (foovar > 10) return __sync_add_and_fetch (&foovar, -1);], +if (foovar > 10) return __sync_add_and_fetch (&foovar, -1);]])], libgfor_cv_have_sync_fetch_and_add=yes, libgfor_cv_have_sync_fetch_and_add=no)]) if test $libgfor_cv_have_sync_fetch_and_add = yes; then AC_DEFINE(HAVE_SYNC_FETCH_AND_ADD, 1, @@ -100,9 +100,11 @@ AC_DEFUN([LIBGFOR_GTHREAD_WEAK], [ libgfor_cv_have_pragma_weak, [ gfor_save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wunknown-pragmas" - AC_TRY_COMPILE([void foo (void); -#pragma weak foo], [if (foo) foo ();], - libgfor_cv_have_pragma_weak=yes, libgfor_cv_have_pragma_weak=no)]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +void foo (void); +#pragma weak foo +]], [[if (foo) foo ();]])], + libgfor_cv_have_pragma_weak=yes, libgfor_cv_have_pragma_weak=no)]) if test $libgfor_cv_have_pragma_weak = yes; then AC_DEFINE(SUPPORTS_WEAK, 1, [Define to 1 if the target supports #pragma weak]) @@ -118,7 +120,7 @@ dnl Check whether target can unlink a file still open. AC_DEFUN([LIBGFOR_CHECK_UNLINK_OPEN_FILE], [ AC_CACHE_CHECK([whether the target can unlink an open file], libgfor_cv_have_unlink_open_file, [ - AC_TRY_RUN([ + AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include #include #include @@ -140,7 +142,7 @@ int main () return 0; else return 1; -}], libgfor_cv_have_unlink_open_file=yes, libgfor_cv_have_unlink_open_file=no, [ +}]])], libgfor_cv_have_unlink_open_file=yes, libgfor_cv_have_unlink_open_file=no, [ case "${target}" in *mingw*) libgfor_cv_have_unlink_open_file=no ;; *) libgfor_cv_have_unlink_open_file=yes;; @@ -153,7 +155,7 @@ dnl Check whether CRLF is the line terminator AC_DEFUN([LIBGFOR_CHECK_CRLF], [ AC_CACHE_CHECK([whether the target has CRLF as line terminator], libgfor_cv_have_crlf, [ - AC_TRY_RUN([ + AC_RUN_IFELSE([AC_LANG_SOURCE([[ /* This test program should exit with status 0 if system uses a CRLF as line terminator, and status 1 otherwise. Since it is used to check for mingw systems, and should return 0 in any @@ -187,7 +189,7 @@ int main () else exit(1); #endif -}], libgfor_cv_have_crlf=yes, libgfor_cv_have_crlf=no, [ +}]])], libgfor_cv_have_crlf=yes, libgfor_cv_have_crlf=no, [ case "${target}" in *mingw*) libgfor_cv_have_crlf=yes ;; *) libgfor_cv_have_crlf=no;; @@ -202,7 +204,7 @@ dnl systems; it is known to be false on mingw32. AC_DEFUN([LIBGFOR_CHECK_WORKING_STAT], [ AC_CACHE_CHECK([whether the target stat is reliable], libgfor_cv_have_working_stat, [ - AC_TRY_RUN([ + AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include #include #include @@ -222,7 +224,7 @@ int main () fclose(f); fclose(g); return 0; -}], libgfor_cv_have_working_stat=yes, libgfor_cv_have_working_stat=no, [ +}]])], libgfor_cv_have_working_stat=yes, libgfor_cv_have_working_stat=no, [ case "${target}" in *mingw*) libgfor_cv_have_working_stat=no ;; *) libgfor_cv_have_working_stat=yes;; @@ -234,13 +236,13 @@ fi]) dnl Checks for fpsetmask function. AC_DEFUN([LIBGFOR_CHECK_FPSETMASK], [ AC_CACHE_CHECK([whether fpsetmask is present], libgfor_cv_have_fpsetmask, [ - AC_TRY_LINK([ + AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #if HAVE_FLOATINGPOINT_H # include #endif /* HAVE_FLOATINGPOINT_H */ #if HAVE_IEEEFP_H # include -#endif /* HAVE_IEEEFP_H */],[fpsetmask(0);], +#endif /* HAVE_IEEEFP_H */]],[[fpsetmask(0);]])], eval "libgfor_cv_have_fpsetmask=yes", eval "libgfor_cv_have_fpsetmask=no") ]) if test x"$libgfor_cv_have_fpsetmask" = xyes; then @@ -252,12 +254,12 @@ AC_DEFUN([LIBGFOR_CHECK_FPSETMASK], [ dnl Check whether we have a mingw that provides a __mingw_snprintf function AC_DEFUN([LIBGFOR_CHECK_MINGW_SNPRINTF], [ AC_CACHE_CHECK([whether __mingw_snprintf is present], libgfor_cv_have_mingw_snprintf, [ - AC_TRY_LINK([ + AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include extern int __mingw_snprintf (char *, size_t, const char *, ...); -],[ +]],[[ __mingw_snprintf (NULL, 0, "%d\n", 1); -], +]])], eval "libgfor_cv_have_mingw_snprintf=yes", eval "libgfor_cv_have_mingw_snprintf=no") ]) if test x"$libgfor_cv_have_mingw_snprintf" = xyes; then diff --git a/libgfortran/configure b/libgfortran/configure index 13a079f9f24..6c20f5e0953 100755 --- a/libgfortran/configure +++ b/libgfortran/configure @@ -25662,8 +25662,10 @@ else CFLAGS="$CFLAGS -Wunknown-pragmas" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ + void foo (void); #pragma weak foo + int main () { diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac index 66468dbc035..522d5ac3821 100644 --- a/libgfortran/configure.ac +++ b/libgfortran/configure.ac @@ -151,7 +151,7 @@ FOO_1.0 { global: *foo*; bar; local: *; }; EOF -AC_TRY_LINK([int foo;],[],[gfortran_use_symver=gnu],[gfortran_use_symver=no]) +AC_LINK_IFELSE([AC_LANG_PROGRAM([[int foo;]],[[]])],[gfortran_use_symver=gnu],[gfortran_use_symver=no]) if test x$gfortran_use_symver = xno; then case "$target_os" in solaris2*) @@ -163,7 +163,7 @@ FOO_1.0 { global: foo; local: *; }; EOF - AC_TRY_LINK([int foo;],[],[gfortran_use_symver=sun],[gfortran_use_symver=no]) + AC_LINK_IFELSE([AC_LANG_PROGRAM([[int foo;]],[[]])],[gfortran_use_symver=sun],[gfortran_use_symver=no]) ;; esac fi @@ -181,7 +181,7 @@ ac_save_CFLAGS="$CFLAGS" # Check for -ffunction-sections -fdata-sections AC_MSG_CHECKING([for gcc that supports -ffunction-sections -fdata-sections]) CFLAGS='-Werror -ffunction-sections -fdata-sections' -AC_TRY_COMPILE(, [int foo;], [ac_fdsections=yes], [ac_fdsections=no]) +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[int foo;]])], [ac_fdsections=yes], [ac_fdsections=no]) if test "$ac_test_CFLAGS" = set; then CFLAGS="$ac_save_CFLAGS" else -- 2.30.2