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-rw-r--r--src/gmisc/gmisc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gmisc/gmisc.h b/src/gmisc/gmisc.h
index 8f858682..ebef8156 100644
--- a/src/gmisc/gmisc.h
+++ b/src/gmisc/gmisc.h
@@ -75,7 +75,9 @@ typedef int32_t fixed;
/**
* @brief The famous number pi
*/
+#ifndef PI
#define PI 3.1415926535897932384626433832795028841971693993751
+#endif
/**
* @brief pi as a fixed point