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-rw-r--r--src/proj_math.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/proj_math.h b/src/proj_math.h
index 1e0c6217..ca3ab401 100644
--- a/src/proj_math.h
+++ b/src/proj_math.h
@@ -29,6 +29,7 @@
#define PROJ_MATH_H
#include <math.h>
+#include <limits.h>
#ifdef __cplusplus
extern "C" {