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-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 9f6901d5..8351924d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -471,6 +471,7 @@ AC_CHECK_TYPES([union semun], [], [], [[
AC_CHECK_TYPES([loff_t])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <stdlib.h>
#include <wchar.h>
#include <wctype.h>
#include <stdio.h>