numeric.c: for strict ANSI

* numeric.c (finite): add declaration for strict ANSI.
  [ruby-core:55312] [Bug #8495]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41835 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/numeric.c b/numeric.c
index 6752becc00..1e9a3bc6d7 100644
--- a/numeric.c
+++ b/numeric.c
@@ -30,6 +30,10 @@
 #include <ieeefp.h>
 #endif
 
+#if defined HAVE_FINITE && !defined finite
+extern int finite(double);
+#endif
+
 /* use IEEE 64bit values if not defined */
 #ifndef FLT_RADIX
 #define FLT_RADIX 2