Hash :
9fc81090
Author :
Date :
2013-01-01T00:50:58
maint: update all copyright year number ranges Run "make update-copyright". Compare to commit 1602f0a from last year. Signed-off-by: Eric Blake <eblake@redhat.com>
# expf.m4 serial 2
dnl Copyright (C) 2011-2013 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_EXPF],
[
AC_REQUIRE([gl_MATH_H_DEFAULTS])
AC_REQUIRE([gl_FUNC_EXP])
dnl Persuade glibc <math.h> to declare expf().
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
dnl Test whether expf() exists. Assume that expf(), if it exists, is
dnl defined in the same library as exp().
save_LIBS="$LIBS"
LIBS="$LIBS $EXP_LIBM"
AC_CHECK_FUNCS([expf])
LIBS="$save_LIBS"
if test $ac_cv_func_expf = yes; then
EXPF_LIBM="$EXP_LIBM"
else
HAVE_EXPF=0
EXPF_LIBM="$EXP_LIBM"
fi
AC_SUBST([EXPF_LIBM])
])