From 16d8350e625a21495b82387748b0b9535b3fe78e Mon Sep 17 00:00:00 2001
From: sje <>
Date: Tue, 27 Sep 2005 20:12:52 +0000
Subject: 	PR target/23552 	* acinclude.m4
 (LIBGFOR_CHECK_FOR_BROKEN_ISFINITE): New. 
 (LIBGFOR_CHECK_FOR_BROKEN_ISNAN): New. 
 (LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY): New. 	* configure.ac
 (LIBGFOR_CHECK_FOR_BROKEN_ISFINITE): Add use. 
 (LIBGFOR_CHECK_FOR_BROKEN_ISNAN): Add use. 
 (LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY): Add use. 	* configure:
 Regenerate. 	* config.h.in: Regenerate. 	* libgfortan.h (isfinite):
 undef if broken, set if needed. 	(isnan): undef if broken, set if
 needed.         (fpclassify): undef if broken, set if needed. 	* io/write.c:
 Remove TODO comment about working isfinite. 	* intrinsics/c99_functions.c
 (round): Use isfinite instead 	of fpclassify. 	* intrinsics/c99_functions.c
 (roundf): Ditto.

---
 libgfortran/configure.ac | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'libgfortran/configure.ac')

diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac
index ebd17b193b1..65f62416374 100644
--- a/libgfortran/configure.ac
+++ b/libgfortran/configure.ac
@@ -328,6 +328,15 @@ AC_CHECK_LIB([m],[ynl],[AC_DEFINE([HAVE_YNL],[1],[libm includes ynl])])
 # On AIX, clog is present in libm as __clog
 AC_CHECK_LIB([m],[__clog],[AC_DEFINE([HAVE_CLOG],[1],[libm includes clog])])
 
+# Check for a isfinite macro that works on long doubles.
+LIBGFOR_CHECK_FOR_BROKEN_ISFINITE
+
+# Check for a isnan macro that works on long doubles.
+LIBGFOR_CHECK_FOR_BROKEN_ISNAN
+
+# Check for a fpclassify macro that works on long doubles.
+LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY
+
 # Fallback in case isfinite is not available.
 AC_CHECK_LIB([m],[finite],[AC_DEFINE([HAVE_FINITE],[1],[libm includes finite])])
 
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