Merged revisions 68296,68299 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r68296 | mark.dickinson | 2009-01-04 12:29:36 +0000 (Sun, 04 Jan 2009) | 6 lines
Add autoconf test to detect x87-style double rounding, as described in
issue #2937. This information can be helpful for diagnosing platform-
specific problems in math and cmath. The result of the test also
serves as a fairly reliable indicator of whether the x87 floating-point
instructions (as opposed to SSE2) are in use on Intel x86/x86_64 systems.
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r68299 | mark.dickinson | 2009-01-04 13:57:26 +0000 (Sun, 04 Jan 2009) | 4 lines
isinf and isnan are macros, not functions; fix configure script
to use AC_CHECK_DECLS instead of AC_CHECK_FUNCS for these.
(See discussion in issue #4506)
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diff --git a/PC/pyconfig.h b/PC/pyconfig.h
index 53568a6..06d22a3 100644
--- a/PC/pyconfig.h
+++ b/PC/pyconfig.h
@@ -395,11 +395,11 @@
/* Define to 1 if you have the `copysign' function. */
#define HAVE_COPYSIGN 1
-/* Define to 1 if you have the `isinf' function. */
-#define HAVE_ISINF 1
+/* Define to 1 if you have the `isinf' macro. */
+#define HAVE_DECL_ISINF 1
/* Define to 1 if you have the `isnan' function. */
-#define HAVE_ISNAN 1
+#define HAVE_DECL_ISNAN 1
/* Define if on AIX 3.
System headers sometimes define this.