ruby/missing.h: M_PI fallback definition

* include/ruby/missing.h (M_PI, M_PI_2): fallback definitions for
  VC6.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51313 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 3 deletions

diff --git a/math.c b/math.c
index 22bd731745..134d937358 100644
--- a/math.c
+++ b/math.c
@@ -106,9 +106,6 @@ num2dbl_with_to_f(VALUE num)
 static VALUE
 math_atan2(VALUE obj, VALUE y, VALUE x)
 {
-#ifndef M_PI
-# define M_PI 3.14159265358979323846
-#endif
     double dx, dy;
     dx = Get_Double(x);
     dy = Get_Double(y);