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Diffstat (limited to 'm4/onceonly.m4')
| -rw-r--r-- | m4/onceonly.m4 | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/m4/onceonly.m4 b/m4/onceonly.m4 deleted file mode 100644 index 275d73c..0000000 --- a/m4/onceonly.m4 +++ /dev/null @@ -1,104 +0,0 @@ -# onceonly.m4 serial 9 -dnl Copyright (C) 2002-2003, 2005-2006, 2008-2012 Free Software Foundation, -dnl Inc. -dnl -dnl This file is free software; you can redistribute it and/or modify -dnl it under the terms of the GNU General Public License as published by -dnl the Free Software Foundation; either version 3 of the License, or -dnl (at your option) any later version. -dnl -dnl This file is distributed in the hope that it will be useful, -dnl but WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -dnl GNU General Public License for more details. -dnl -dnl You should have received a copy of the GNU General Public License -dnl along with this file. If not, see <http://www.gnu.org/licenses/>. -dnl -dnl As a special exception to the GNU General Public License, -dnl this file may be distributed as part of a program -dnl that contains a configuration script generated by Autoconf, under -dnl the same distribution terms as the rest of that program. - -dnl This file defines some "once only" variants of standard autoconf macros. -dnl AC_CHECK_HEADERS_ONCE like AC_CHECK_HEADERS -dnl AC_CHECK_FUNCS_ONCE like AC_CHECK_FUNCS -dnl AC_CHECK_DECLS_ONCE like AC_CHECK_DECLS -dnl AC_REQUIRE([AC_FUNC_STRCOLL]) like AC_FUNC_STRCOLL -dnl The advantage is that the check for each of the headers/functions/decls -dnl will be put only once into the 'configure' file. It keeps the size of -dnl the 'configure' file down, and avoids redundant output when 'configure' -dnl is run. -dnl The drawback is that the checks cannot be conditionalized. If you write -dnl if some_condition; then gl_CHECK_HEADERS(stdlib.h); fi -dnl inside an AC_DEFUNed function, the gl_CHECK_HEADERS macro call expands to -dnl empty, and the check will be inserted before the body of the AC_DEFUNed -dnl function. - -dnl The original code implemented AC_CHECK_HEADERS_ONCE and AC_CHECK_FUNCS_ONCE -dnl in terms of AC_DEFUN and AC_REQUIRE. This implementation uses diversions to -dnl named sections DEFAULTS and INIT_PREPARE in order to check all requested -dnl headers at once, thus reducing the size of 'configure'. It is known to work -dnl with autoconf 2.57..2.62 at least . The size reduction is ca. 9%. - -dnl Autoconf version 2.59 plus gnulib is required; this file is not needed -dnl with Autoconf 2.60 or greater. But note that autoconf's implementation of -dnl AC_CHECK_DECLS_ONCE expects a comma-separated list of symbols as first -dnl argument! -AC_PREREQ([2.59]) - -# AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of -# AC_CHECK_HEADERS(HEADER1 HEADER2 ...). -AC_DEFUN([AC_CHECK_HEADERS_ONCE], [ - : - m4_foreach_w([gl_HEADER_NAME], [$1], [ - AC_DEFUN([gl_CHECK_HEADER_]m4_quote(m4_translit(gl_HEADER_NAME, - [./-], [___])), [ - m4_divert_text([INIT_PREPARE], - [gl_header_list="$gl_header_list gl_HEADER_NAME"]) - gl_HEADERS_EXPANSION - AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([gl_HEADER_NAME])), - [Define to 1 if you have the <]m4_defn([gl_HEADER_NAME])[> header file.]) - ]) - AC_REQUIRE([gl_CHECK_HEADER_]m4_quote(m4_translit(gl_HEADER_NAME, - [./-], [___]))) - ]) -]) -m4_define([gl_HEADERS_EXPANSION], [ - m4_divert_text([DEFAULTS], [gl_header_list=]) - AC_CHECK_HEADERS([$gl_header_list]) - m4_define([gl_HEADERS_EXPANSION], []) -]) - -# AC_CHECK_FUNCS_ONCE(FUNC1 FUNC2 ...) is a once-only variant of -# AC_CHECK_FUNCS(FUNC1 FUNC2 ...). -AC_DEFUN([AC_CHECK_FUNCS_ONCE], [ - : - m4_foreach_w([gl_FUNC_NAME], [$1], [ - AC_DEFUN([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME]), [ - m4_divert_text([INIT_PREPARE], - [gl_func_list="$gl_func_list gl_FUNC_NAME"]) - gl_FUNCS_EXPANSION - AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([gl_FUNC_NAME])), - [Define to 1 if you have the ']m4_defn([gl_FUNC_NAME])[' function.]) - ]) - AC_REQUIRE([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME])) - ]) -]) -m4_define([gl_FUNCS_EXPANSION], [ - m4_divert_text([DEFAULTS], [gl_func_list=]) - AC_CHECK_FUNCS([$gl_func_list]) - m4_define([gl_FUNCS_EXPANSION], []) -]) - -# AC_CHECK_DECLS_ONCE(DECL1 DECL2 ...) is a once-only variant of -# AC_CHECK_DECLS(DECL1, DECL2, ...). -AC_DEFUN([AC_CHECK_DECLS_ONCE], [ - : - m4_foreach_w([gl_DECL_NAME], [$1], [ - AC_DEFUN([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME]), [ - AC_CHECK_DECLS(m4_defn([gl_DECL_NAME])) - ]) - AC_REQUIRE([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME])) - ]) -]) |