From 5f70dcfc4f65198adbce63a01a17f18b1627beee Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sat, 10 Mar 2012 19:54:08 +0100
Subject: log1p: Provide replacement for Minix and MSVC.

* lib/math.in.h (log1p): New declaration.
* lib/log1p.c: New file.
* m4/log1p.m4: New file.
* m4/math_h.m4 (gl_MATH_H): Test whether log1p is declared.
(gl_MATH_H_DEFAULTS): Initialize GNULIB_LOG1P, HAVE_LOG1P.
* modules/math (Makefile.am): Substitute GNULIB_LOG1P, HAVE_LOG1P.
* modules/log1p (Files): Add lib/log1p.c, m4/log1p.m4.
(Depends-on): Add math, isnand, log, round.
(configure.ac): Invoke gl_FUNC_LOG1P. Arrange to compile replacement if
HAVE_LOG1P is 0.
* tests/test-math-c++.cc: Check the declaration of log1p.
* doc/posix-functions/log1p.texi: Mention the replacement.
---
 modules/log1p | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'modules/log1p')

diff --git a/modules/log1p b/modules/log1p
index 3470e87302..e055026aac 100644
--- a/modules/log1p
+++ b/modules/log1p
@@ -2,13 +2,23 @@ Description:
 log1p() function: natural logarithm of 1 plus argument.
 
 Files:
+lib/log1p.c
+m4/log1p.m4
 m4/mathfunc.m4
 
 Depends-on:
+math
 extensions
+isnand          [test $HAVE_LOG1P = 0]
+log             [test $HAVE_LOG1P = 0]
+round           [test $HAVE_LOG1P = 0]
 
 configure.ac:
-gl_COMMON_DOUBLE_MATHFUNC([log1p])
+gl_FUNC_LOG1P
+if test $HAVE_LOG1P = 0; then
+  AC_LIBOBJ([log1p])
+fi
+gl_MATH_MODULE_INDICATOR([log1p])
 
 Makefile.am:
 
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