Mercurial > gnulib
view m4/atanf.m4 @ 40227:5207eb0dcd2a
tests: Avoid havoc with "gcc -fcheck-pointer-bounds".
* tests/test-fprintf-posix2.c: Skip the test when -fcheck-pointer-bounds
is in use.
* tests/test-printf-posix2.c: Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 10 Mar 2019 17:09:30 +0100 |
parents | b06060465f09 |
children |
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# atanf.m4 serial 3 dnl Copyright (C) 2011-2019 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. AC_DEFUN([gl_FUNC_ATANF], [ AC_REQUIRE([gl_MATH_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_ATAN]) dnl Persuade glibc <math.h> to declare atanf(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl Test whether atanf() exists. Assume that atanf(), if it exists, is dnl defined in the same library as atan(). save_LIBS="$LIBS" LIBS="$LIBS $ATAN_LIBM" AC_CHECK_FUNCS([atanf]) LIBS="$save_LIBS" if test $ac_cv_func_atanf = yes; then ATANF_LIBM="$ATAN_LIBM" else HAVE_ATANF=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_atanf, not atanf. AC_CHECK_DECLS([atanf], [REPLACE_ATANF=1], , [[#include <math.h>]]) ATANF_LIBM="$ATAN_LIBM" fi AC_SUBST([ATANF_LIBM]) ])