1 files changed, 4 insertions, 0 deletions
diff --git a/utf8.c b/utf8.c
index 36354277..c37e7d8d 100644
--- a/utf8.c
+++ b/utf8.c
@@ -36,6 +36,10 @@
 #include "unwind.h"
 #include "utf8.h"
 
+#if HAVE_WINDOWS_H
+FILE *popen(const char *path, const char *mode);
+#endif
+
 #if WCHAR_MAX > 65535
 #define FULL_UNICODE
 #endif