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-rw-r--r--posix/bug-regex1.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/posix/bug-regex1.c b/posix/bug-regex1.c
index 262a22e971..38eb543951 100644
--- a/posix/bug-regex1.c
+++ b/posix/bug-regex1.c
@@ -3,6 +3,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <regex.h>
+#include <wchar.h>
 
 int
 main (void)