+dnl Check if variadic macros (C99 feature) are supported:
+AC_CACHE_CHECK(
+ [whether the compiler supports variadic macros],
+ [wx_cv_have_variadic_macros],
+ [
+ AC_COMPILE_IFELSE(
+ AC_LANG_PROGRAM(
+ [
+ #include <stdio.h>
+ #define test(fmt, ...) printf(fmt, __VA_ARGS__)
+ ],
+ [
+ test("%s %d %p", "test", 1, 0);
+ ]
+ ),
+ [wx_cv_have_variadic_macros=yes],
+ [wx_cv_have_variadic_macros=no]
+ )
+ ]
+)
+
+if test $wx_cv_have_variadic_macros = "yes"; then
+ AC_DEFINE(HAVE_VARIADIC_MACROS)
+fi
+