mirror of https://github.com/ceph/ceph
67 lines
2.6 KiB
Plaintext
67 lines
2.6 KiB
Plaintext
|
# ===========================================================================
|
||
|
|
# http://www.gnu.org/software/autoconf-archive/ax_c_var_func.html
|
||
|
|
# ===========================================================================
|
||
|
|
#
|
||
|
|
# SYNOPSIS
|
||
|
|
#
|
||
|
|
# AX_C_VAR_FUNC
|
||
|
|
#
|
||
|
|
# DESCRIPTION
|
||
|
|
#
|
||
|
|
# This macro tests if the C complier supports the C9X standard __func__
|
||
|
|
# indentifier.
|
||
|
|
#
|
||
|
|
# The new C9X standard for the C language stipulates that the identifier
|
||
|
|
# __func__ shall be implictly declared by the compiler as if, immediately
|
||
|
|
# following the opening brace of each function definition, the declaration
|
||
|
|
#
|
||
|
|
# static const char __func__[] = "function-name";
|
||
|
|
#
|
||
|
|
# appeared, where function-name is the name of the function where the
|
||
|
|
# __func__ identifier is used.
|
||
|
|
#
|
||
|
|
# LICENSE
|
||
|
|
#
|
||
|
|
# Copyright (c) 2008 Christopher Currie <christopher@currie.com>
|
||
|
|
#
|
||
|
|
# This program is free software; you can redistribute it and/or modify it
|
||
|
|
# under the terms of the GNU General Public License as published by the
|
||
|
|
# Free Software Foundation; either version 2 of the License, or (at your
|
||
|
|
# option) any later version.
|
||
|
|
#
|
||
|
|
# This program is distributed in the hope that it will be useful, but
|
||
|
|
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
|
||
|
|
# Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU General Public License along
|
||
|
|
# with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
#
|
||
|
|
# As a special exception, the respective Autoconf Macro's copyright owner
|
||
|
|
# gives unlimited permission to copy, distribute and modify the configure
|
||
|
|
# scripts that are the output of Autoconf when processing the Macro. You
|
||
|
|
# need not follow the terms of the GNU General Public License when using
|
||
|
|
# or distributing such scripts, even though portions of the text of the
|
||
|
|
# Macro appear in them. The GNU General Public License (GPL) does govern
|
||
|
|
# all other use of the material that constitutes the Autoconf Macro.
|
||
|
|
#
|
||
|
|
# This special exception to the GPL applies to versions of the Autoconf
|
||
|
|
# Macro released by the Autoconf Archive. When you make and distribute a
|
||
|
|
# modified version of the Autoconf Macro, you may extend this special
|
||
|
|
# exception to the GPL to apply to your modified version as well.
|
||
|
|
|
||
|
|
#serial 5
|
||
|
|
|
||
|
|
AU_ALIAS([AC_C_VAR_FUNC], [AX_C_VAR_FUNC])
|
||
|
|
AC_DEFUN([AX_C_VAR_FUNC],
|
||
|
|
[AC_REQUIRE([AC_PROG_CC])
|
||
|
|
AC_CACHE_CHECK(whether $CC recognizes __func__, ac_cv_c_var_func,
|
||
|
|
AC_TRY_COMPILE(,
|
||
|
|
[
|
||
|
|
char *s = __func__;
|
||
|
|
],
|
||
|
|
AC_DEFINE(HAVE_FUNC,,
|
||
|
|
[Define if the C complier supports __func__]) ac_cv_c_var_func=yes,
|
||
|
|
ac_cv_c_var_func=no) )
|
||
|
|
])dnl
|