Files
asterisk/autoconf/ast_gcc_attribute.m4
Kevin P. Fleming c34b247297 Merged revisions 151242-151243 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk

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  r151242 | kpfleming | 2008-10-20 07:59:04 +0300 (Mon, 20 Oct 2008) | 9 lines
  
  Merged revisions 151240 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.4
  
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    r151240 | kpfleming | 2008-10-20 07:45:56 +0300 (Mon, 20 Oct 2008) | 3 lines
    
    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
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  r151243 | kpfleming | 2008-10-20 08:00:56 +0300 (Mon, 20 Oct 2008) | 9 lines
  
  Merged revisions 151241 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.4
  
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    r151241 | kpfleming | 2008-10-20 07:57:33 +0300 (Mon, 20 Oct 2008) | 2 lines
    
    rename this macro to properly reflect what it does
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.1@151245 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2008-10-20 05:06:29 +00:00

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# Helper function to check for gcc attributes.
# 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"
)