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-rw-r--r--test/main.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/test/main.h b/test/main.h
index e5f1a9ad5..bba5e7570 100644
--- a/test/main.h
+++ b/test/main.h
@@ -58,6 +58,10 @@
#define isnan(X) please_protect_your_isnan_with_parentheses
#define isinf(X) please_protect_your_isinf_with_parentheses
#define isfinite(X) please_protect_your_isfinite_with_parentheses
+#ifdef M_PI
+#undef M_PI
+#endif
+#define M_PI please_use_EIGEN_PI_instead_of_M_PI
#define FORBIDDEN_IDENTIFIER (this_identifier_is_forbidden_to_avoid_clashes) this_identifier_is_forbidden_to_avoid_clashes
// B0 is defined in POSIX header termios.h