From c3c2a1f5229d1f9d534a15be700fab29a2d356fe Mon Sep 17 00:00:00 2001 From: Bruno Haible Date: Sat, 25 Feb 2012 01:36:41 +0100 Subject: [PATCH] tanl: Provide function definition on MSVC. * m4/tanl.m4 (gl_FUNC_TANL): Test also whether tanl can be used as a function pointer. * lib/math.in.h (tanl): Undefine if it does not exist as a function. --- ChangeLog | 7 +++++++ lib/math.in.h | 1 + m4/tanl.m4 | 10 +++++++--- 3 files changed, 15 insertions(+), 3 deletions(-) diff --git a/ChangeLog b/ChangeLog index 5de730bb1..1266136b8 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,12 @@ 2012-02-24 Bruno Haible + tanl: Provide function definition on MSVC. + * m4/tanl.m4 (gl_FUNC_TANL): Test also whether tanl can be used as a + function pointer. + * lib/math.in.h (tanl): Undefine if it does not exist as a function. + +2012-02-24 Bruno Haible + cosl: Provide function definition on MSVC. * m4/cosl.m4 (gl_FUNC_COSL): Test also whether cosl can be used as a function pointer. diff --git a/lib/math.in.h b/lib/math.in.h index 3de111ed1..0143b030a 100644 --- a/lib/math.in.h +++ b/lib/math.in.h @@ -1039,6 +1039,7 @@ _GL_WARN_ON_USE (tanf, "tanf is unportable - " #if @GNULIB_TANL@ # if !@HAVE_TANL@ || !@HAVE_DECL_TANL@ +# undef tanl _GL_FUNCDECL_SYS (tanl, long double, (long double x)); # endif _GL_CXXALIAS_SYS (tanl, long double, (long double x)); diff --git a/m4/tanl.m4 b/m4/tanl.m4 index 5ec2f1644..7694a6c72 100644 --- a/m4/tanl.m4 +++ b/m4/tanl.m4 @@ -1,4 +1,4 @@ -# tanl.m4 serial 6 +# tanl.m4 serial 7 dnl Copyright (C) 2010-2012 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -22,8 +22,10 @@ AC_DEFUN([gl_FUNC_TANL], # define __NO_MATH_INLINES 1 /* for glibc */ #endif #include + long double (*funcptr) (long double) = tanl; long double x;]], - [[return tanl (x) > 0.4;]])], + [[return funcptr (x) > 0.4 + || tanl (x) > 0.4;]])], [gl_cv_func_tanl_no_libm=yes], [gl_cv_func_tanl_no_libm=no]) ]) @@ -39,8 +41,10 @@ AC_DEFUN([gl_FUNC_TANL], # define __NO_MATH_INLINES 1 /* for glibc */ #endif #include + long double (*funcptr) (long double) = tanl; long double x;]], - [[return tanl (x) > 0.4;]])], + [[return funcptr (x) > 0.4 + || tanl (x) > 0.4;]])], [gl_cv_func_tanl_in_libm=yes], [gl_cv_func_tanl_in_libm=no]) LIBS="$save_LIBS" -- 2.11.0