gmputil: Add missing header for va_list

Otherwise it errors with unknown type name when using uClibc.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/gmputil.h b/include/gmputil.h
index 73959c17..ad63d67b 100644
--- a/include/gmputil.h
+++ b/include/gmputil.h
@@ -7,6 +7,7 @@
 #include <gmp.h>
 #else
 #include <mini-gmp.h>
+#include <stdarg.h>
 #include <stdio.h>
 /* mini-gmp doesn't come with gmp_vfprintf, so we use our own minimal variant */
 extern int mpz_vfprintf(FILE *fp, const char *format, va_list args);