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-rw-r--r--externals/grill/xsample/source/groove.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/externals/grill/xsample/source/groove.cpp b/externals/grill/xsample/source/groove.cpp
index 408ee164..305abb8c 100644
--- a/externals/grill/xsample/source/groove.cpp
+++ b/externals/grill/xsample/source/groove.cpp
@@ -18,6 +18,9 @@ WARRANTIES, see the file, "license.txt," in this distribution.
#pragma warning (disable:4244)
#endif
+#ifndef M_PI
+#define M_PI 3.141592653589793238462643383
+#endif
#define XZONE_TABLE 512