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-rw-r--r--ext/exif/exif.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/ext/exif/exif.c b/ext/exif/exif.c
index f7e2a2742f..8d73e57f7c 100644
--- a/ext/exif/exif.c
+++ b/ext/exif/exif.c
@@ -86,6 +86,11 @@ typedef unsigned char uchar;
#define FALSE 0
#endif
+#ifndef MB_CUR_MAX
+ #define MB_CUR_MAX 8
+ /* Should be a library constant */
+#endif
+
#ifndef max
#define max(a,b) ((a)>(b) ? (a) : (b))
#endif