mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-24 23:32:06 +00:00
26 lines
585 B
Plaintext
26 lines
585 B
Plaintext
dnl modified AC_C_INLINE from autoconf/c.m4
|
|
|
|
AN_IDENTIFIER([attribute], [AC_C_ATTRIBUTE])
|
|
AC_DEFUN([AC_C_ATTRIBUTE],
|
|
[AC_CACHE_CHECK([for __attribute__], ac_cv_c_attribute,
|
|
[
|
|
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
|
|
[void foo(void) __attribute__ ((__noreturn__));]
|
|
)],
|
|
[ac_cv_c_attribute=yes],
|
|
[ac_cv_c_attribute=no]
|
|
)
|
|
])
|
|
AH_VERBATIM([attribute],
|
|
[/* Define to `__attribute__' to nothing if it's not supported. */
|
|
#undef __attribute__])
|
|
case $ac_cv_c_attribute in
|
|
yes) ;;
|
|
no)
|
|
cat >>confdefs.h <<_ACEOF
|
|
#define __attribute__(x) /* nothing */
|
|
_ACEOF
|
|
;;
|
|
esac
|
|
])# AC_C_ATTRIBUTE
|