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| author | Bruno Haible <bruno@clisp.org> | 2016-12-17 19:31:58 +0100 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2016-12-17 23:09:04 +0100 |
| commit | 9113a6db3f4efd150bfa77188e1277ff83aadc1b (patch) | |
| tree | edde8e063e4d9a79cced1dbf4deff63834520740 /m4/cosf.m4 | |
| parent | cf308efdb00585d5e7139c0e6eff3ad4854769a1 (diff) | |
| download | gnulib-9113a6db3f4efd150bfa77188e1277ff83aadc1b.tar.gz | |
cosf: Avoid redefinition error on MSVC.
* m4/math_h.m4 (gl_MATH_H_DEFAULTS): Define REPLACE_COSF.
* m4/cosf.m4 (gl_FUNC_COSF): Set REPLACE_COSF to 1 if the function
may be defined as an inline function.
* modules/math (Makefile.am): Substitute REPLACE_COSF.
* lib/math.in.h (cosf): Override if REPLACE_COSF is 1.
Diffstat (limited to 'm4/cosf.m4')
| -rw-r--r-- | m4/cosf.m4 | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/m4/cosf.m4 b/m4/cosf.m4 index 8315aa0110..757d9b7238 100644 --- a/m4/cosf.m4 +++ b/m4/cosf.m4 @@ -1,4 +1,4 @@ -# cosf.m4 serial 2 +# cosf.m4 serial 3 dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -22,6 +22,10 @@ AC_DEFUN([gl_FUNC_COSF], COSF_LIBM="$COS_LIBM" else HAVE_COSF=0 + dnl If the function is declared but does not appear to exist, it may be + dnl defined as an inline function. In order to avoid a conflict, we have + dnl to define rpl_cosf, not cosf. + AC_CHECK_DECLS([cosf], [REPLACE_COSF=1], , [[#include <math.h>]]) COSF_LIBM="$COS_LIBM" fi AC_SUBST([COSF_LIBM]) |