diff options
Diffstat (limited to 'autoconf/ast_gcc_attribute.m4')
| -rw-r--r-- | autoconf/ast_gcc_attribute.m4 | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/autoconf/ast_gcc_attribute.m4 b/autoconf/ast_gcc_attribute.m4 index b1972bedf..9d5a32045 100644 --- a/autoconf/ast_gcc_attribute.m4 +++ b/autoconf/ast_gcc_attribute.m4 @@ -9,28 +9,17 @@ CFLAGS="$CFLAGS -Wall -Wno-unused -Werror" m4_ifval([$4],$4=0) ax_cv_have_func_attribute_$1=0 -if test "x$2" = "x" -then AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM([$3 void __attribute__(($1)) *test(void *muffin, ...) {return (void *) 0;}], - [])], + [AC_LANG_PROGRAM( + m4_ifblank([$2], + [$3 void __attribute__(($1)) *test(void *muffin, ...) {return (void *) 0;}], + [$3 void __attribute__(($2)) *test(void *muffin, ...) ;]))], AC_MSG_RESULT(yes) m4_ifval([$4],$4=1) ax_cv_have_func_attribute_$1=1 AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]), AC_MSG_RESULT(no) ) -else -AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM([$3 void __attribute__(($2)) *test(void *muffin, ...) ;], - [])], - AC_MSG_RESULT(yes) - m4_ifval([$4],$4=1) - ax_cv_have_func_attribute_$1=1 - AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]), - AC_MSG_RESULT(no) -) -fi m4_ifval([$4],[AC_SUBST($4)]) CFLAGS="$saved_CFLAGS" |