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| author | Bruno Haible <bruno@clisp.org> | 2012-03-08 01:26:03 +0100 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2012-03-08 01:52:49 +0100 |
| commit | c0ea2abaac8565cdf5331b43e1608df1f43f415f (patch) | |
| tree | 4d04635797b805cc3529ae524712f9fcb5c08fc6 /m4/check-math-lib.m4 | |
| parent | 0d9ccdd3faa9b6f2e89ecaffe9f27aa88cc01258 (diff) | |
| download | gnulib-c0ea2abaac8565cdf5331b43e1608df1f43f415f.tar.gz | |
round: Don't override undeclared system function on IRIX 6.5.
* m4/check-math-lib.m4 (gl_CHECK_MATH_LIB): Accept an optional third
argument.
* m4/round.m4 (gl_FUNC_ROUND): Search for round() in the libraries
also when it is not declared. Set HAVE_ROUND. For replacement code,
test HAVE_ROUND, not HAVE_DECL_ROUND.
* modules/round (configure.ac): For replacement code, test HAVE_ROUND,
not HAVE_DECL_ROUND.
(Depends-on): Update conditions.
* modules/round-ieee (Depends-on): Update conditions.
* doc/posix-functions/round.texi: Mention the IRIX problem.
Diffstat (limited to 'm4/check-math-lib.m4')
| -rw-r--r-- | m4/check-math-lib.m4 | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/m4/check-math-lib.m4 b/m4/check-math-lib.m4 index 0b77d8f6a0..4f370eb49f 100644 --- a/m4/check-math-lib.m4 +++ b/m4/check-math-lib.m4 @@ -1,10 +1,10 @@ -# check-math-lib.m4 serial 3 +# check-math-lib.m4 serial 4 dnl Copyright (C) 2007, 2009-2012 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl -dnl gl_CHECK_MATH_LIB (VARIABLE, EXPRESSION) +dnl gl_CHECK_MATH_LIB (VARIABLE, EXPRESSION [, EXTRA-CODE]) dnl dnl Sets the shell VARIABLE according to the libraries needed by EXPRESSION dnl to compile and link: to the empty string if no extra libraries are needed, @@ -22,6 +22,7 @@ AC_DEFUN([gl_CHECK_MATH_LIB], [ # define __NO_MATH_INLINES 1 /* for glibc */ #endif #include <math.h> + $3 double x;]], [$2])], [$1=$libm |