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-rw-r--r--libc/include/stdlib.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/libc/include/stdlib.h b/libc/include/stdlib.h
index a821e03..acfe694 100644
--- a/libc/include/stdlib.h
+++ b/libc/include/stdlib.h
@@ -29,6 +29,13 @@
#define _STDLIB_H_
#include <sys/cdefs.h>
+
+/* wchar_t is required in stdlib.h according to POSIX.
+ * note that defining __need_wchar_t prevents stddef.h
+ * to define all other symbols it does normally */
+#define __need_wchar_t
+#include <stddef.h>
+
#include <stddef.h>
#include <string.h>
#include <alloca.h>