* win32/win32.c (NtInitialize): set the floating-point control word

on bcc32.

* win32/win32.h, bcc32/Makefile.sub: use missing/isinf.c, should not
  use _finite() because it returns 0 if NaN.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3702 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

win32/win32.c

@@ -363,6 +363,10 @@ NtInitialize(int *argc, char ***argv)
     WORD version;
     int ret;
 
+#ifdef __BORLANDC__
+    _controlfp(0x5, 0x5);
+#endif
+
     //
     // subvert cmd.exe's feeble attempt at command line parsing
     //