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dnl #
dnl # Check if we have the types compatible p builtin
dnl #
AC_DEFUN([FR_HAVE_BUILTIN_TYPES_COMPATIBLE_P],
[
AC_CACHE_CHECK([for __builtin_types_compatible_p support in compiler], [ax_cv_cc_builtin_types_compatible_p],[
AC_RUN_IFELSE(
[
AC_LANG_SOURCE(
[
int main(int argc, char **argv) {
if ((argc < 0) || !argv) return 1; /* -Werror=unused-parameter */
return !(__builtin_types_compatible_p(char *, char *));
}
])
],
[ax_cv_cc_builtin_types_compatible_p=yes],
[ax_cv_cc_builtin_types_compatible_p=no]
)
])
if test "x$ax_cv_cc_builtin_types_compatible_p" = "xyes"; then
AC_DEFINE([HAVE_BUILTIN_TYPES_COMPATIBLE_P],1,[Define if the compiler supports __builtin_types_compatible_p])
fi
])
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