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-rw-r--r--mrbgems/mruby-math/src/math.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/mrbgems/mruby-math/src/math.c b/mrbgems/mruby-math/src/math.c
index 3daece9bc..a699a12f0 100644
--- a/mrbgems/mruby-math/src/math.c
+++ b/mrbgems/mruby-math/src/math.c
@@ -359,14 +359,6 @@ math_atanh(mrb_state *mrb, mrb_value obj)
/*
EXPONENTIALS AND LOGARITHMS
*/
-#if defined __CYGWIN__
-# include <cygwin/version.h>
-# if CYGWIN_VERSION_DLL_MAJOR < 1005
-# define nan(x) nan()
-# endif
-# define log(x) ((x) < 0.0 ? nan("") : log(x))
-# define log10(x) ((x) < 0.0 ? nan("") : log10(x))
-#endif
/*
* call-seq: