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-rw-r--r--cmd-line-utils/libedit/sys.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/cmd-line-utils/libedit/sys.h b/cmd-line-utils/libedit/sys.h
index 2731fb5f30e..33638d1565b 100644
--- a/cmd-line-utils/libedit/sys.h
+++ b/cmd-line-utils/libedit/sys.h
@@ -92,8 +92,21 @@ size_t strlcpy(char *dst, const char *src, size_t size);
char *fgetln(FILE *fp, size_t *len);
#endif
-#ifndef HAVE_WCSDUP
+#ifdef __linux__
+/* Apparently we need _GNU_SOURCE defined to get access to wcsdup on Linux */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#endif
+
+#ifndef __USE_XOPEN
+#define __USE_XOPEN
+#endif
+
#include <wchar.h>
+#include <wctype.h>
+
+#ifndef HAVE_WCSDUP
wchar_t *wcsdup(const wchar_t *);
#endif