diff options
| author | Kevin P. Fleming <kpfleming@digium.com> | 2009-06-16 01:28:08 +0000 |
|---|---|---|
| committer | Kevin P. Fleming <kpfleming@digium.com> | 2009-06-16 01:28:08 +0000 |
| commit | 4af5dd813c040d30bcb0666a09300997a5d7f46d (patch) | |
| tree | 2c9124bcb82fc0757682e7432e03331a6b08b3a2 /autoconf | |
| parent | dcc651d99b132231a82b0337e9d2170fea76032d (diff) | |
Ensure that configure-script testing for compiler attributes actually works.
The configure script tests for compiler attributes didn't actually enable
enough warnings or provide a proper test harness to determine whether the
compiler supports the attribute in question or not; this caused gcc 4.1 to
report that it supports 'weakref', but it doesn't actually support it in the
way that is needed for our optional API mechanism. The new configure script
test will properly distinguish between full support and partial support
for this attribute, among others.
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@200764 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'autoconf')
| -rw-r--r-- | autoconf/ast_gcc_attribute.m4 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/autoconf/ast_gcc_attribute.m4 b/autoconf/ast_gcc_attribute.m4 index c4488454d..806b39019 100644 --- a/autoconf/ast_gcc_attribute.m4 +++ b/autoconf/ast_gcc_attribute.m4 @@ -5,12 +5,12 @@ AC_DEFUN([AST_GCC_ATTRIBUTE], [ AC_MSG_CHECKING(for compiler 'attribute $1' support) saved_CFLAGS="$CFLAGS" -CFLAGS="$CFLAGS -Werror" +CFLAGS="$CFLAGS -Wall -Wno-unused -Werror" if test "x$2" = "x" then AC_COMPILE_IFELSE( - AC_LANG_PROGRAM([void __attribute__(($1)) *test(void *muffin, ...) {}], + AC_LANG_PROGRAM([static void __attribute__(($1)) *test(void *muffin, ...) {return (void *) 0;}], []), AC_MSG_RESULT(yes) AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]), @@ -18,7 +18,7 @@ AC_COMPILE_IFELSE( ) else AC_COMPILE_IFELSE( - AC_LANG_PROGRAM([void __attribute__(($2)) *test(void *muffin, ...) {}], + AC_LANG_PROGRAM([static void __attribute__(($2)) *test(void *muffin, ...) {return (void *) 0;}], []), AC_MSG_RESULT(yes) AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]), |