asterisk/autoconf/ast_gcc_attribute.m4

# AST_GCC_ATTRIBUTE([attribute name])

AC_DEFUN([AST_GCC_ATTRIBUTE],
[
AC_MSG_CHECKING(for compiler 'attribute $1' support)
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Werror"
AC_COMPILE_IFELSE(
	AC_LANG_PROGRAM([static void __attribute__(($1)) *test(void *muffin, ...) {}],
			[]),
	AC_MSG_RESULT(yes)
	AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]),
	AC_MSG_RESULT(no))
CFLAGS="$saved_CFLAGS"
]
)
break up acinclude.m4 into individual files, which will make it easier to maintain, easier to add new macros (less patching) and will ease maintenance of these macros across Asterisk branches git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@151240 65c4cc65-6c06-0410-ace0-fbb531ad65f3 2008-10-20 04:45:56 +00:00			`# AST_GCC_ATTRIBUTE([attribute name])`

			`AC_DEFUN([AST_GCC_ATTRIBUTE],`
			`[`
			`AC_MSG_CHECKING(for compiler 'attribute $1' support)`
			`saved_CFLAGS="$CFLAGS"`
			`CFLAGS="$CFLAGS -Werror"`
			`AC_COMPILE_IFELSE(`
			`AC_LANG_PROGRAM([static void __attribute__(($1)) test(void muffin, ...) {}],`
			`[]),`
			`AC_MSG_RESULT(yes)`
			`AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]),`
			`AC_MSG_RESULT(no))`
			`CFLAGS="$saved_CFLAGS"`
correct minor syntax error... no functional change git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@156485 65c4cc65-6c06-0410-ace0-fbb531ad65f3 2008-11-13 11:51:27 +00:00			`]`
break up acinclude.m4 into individual files, which will make it easier to maintain, easier to add new macros (less patching) and will ease maintenance of these macros across Asterisk branches git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@151240 65c4cc65-6c06-0410-ace0-fbb531ad65f3 2008-10-20 04:45:56 +00:00			`)`