Add va-copy check to configure.ac

[petitboot] / configure.ac

diff --git a/configure.ac b/configure.ac
index d9fe8ad9cdb87688f86b2ca24d1866e7c63689f0..d12355667c303d52832b0208524853ff6b281e59 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -29,6 +29,31 @@ fi
 AC_PROG_CC
 AC_PROG_INSTALL
 
+AC_CHECK_HEADERS([stdarg.h])
+AC_CHECK_HEADERS([varargs.h])
+#AC_CHECK_FUNCS([va_copy])
+
+dnl Checking for va_copy availability
+AC_MSG_CHECKING([for va_copy])
+AC_TRY_LINK([#include <stdarg.h>
+va_list ap1,ap2;], [va_copy(ap1,ap2);],
+have_va_copy=yes,
+have_va_copy=no)
+AC_MSG_RESULT($have_va_copy)
+if test x"$have_va_copy" = x"yes"; then
+    AC_DEFINE(HAVE_VA_COPY,1,[Whether va_copy() is available])
+else
+    AC_MSG_CHECKING([for __va_copy])
+    AC_TRY_LINK([#include <stdarg.h>
+    va_list ap1,ap2;], [__va_copy(ap1,ap2);],
+    have___va_copy=yes,
+    have___va_copy=no)
+    AC_MSG_RESULT($have___va_copy)
+    if test x"$have___va_copy" = x"yes"; then
+        AC_DEFINE(HAVE___VA_COPY,1,[Whether __va_copy() is available])
+    fi
+fi
+
 AC_ARG_ENABLE([ps3],
        [AS_HELP_STRING([--enable-ps3],
                [build support for the PS3 game console])],