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-rw-r--r--source/fitz/ftoa.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/source/fitz/ftoa.c b/source/fitz/ftoa.c
index dc3ce73b..47759425 100644
--- a/source/fitz/ftoa.c
+++ b/source/fitz/ftoa.c
@@ -27,7 +27,10 @@
#define NAN (INFINITY-INFINITY)
#endif
+#ifndef DEFINED_ULONG
+#define DEFINED_ULONG
typedef unsigned long ulong;
+#endif
enum { NSIGNIF = 9 };