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author | Jim Meyering <jim@meyering.net> | 2003-02-02 18:25:22 +0000 |
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committer | Jim Meyering <jim@meyering.net> | 2003-02-02 18:25:22 +0000 |
commit | 6426d388200acd27290c3a1d42de02f06af31d8e (patch) | |
tree | 583ff1d1808a78b6ae4aa1a61e47963b8ef477b1 /m4/onceonly_2_57.m4 | |
parent | 45698f01ec4d29f3c4d05cb54678ce3ef30ccd3d (diff) | |
download | coreutils-6426d388200acd27290c3a1d42de02f06af31d8e.tar.xz |
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Diffstat (limited to 'm4/onceonly_2_57.m4')
-rw-r--r-- | m4/onceonly_2_57.m4 | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/m4/onceonly_2_57.m4 b/m4/onceonly_2_57.m4 deleted file mode 100644 index fbc0e7359..000000000 --- a/m4/onceonly_2_57.m4 +++ /dev/null @@ -1,81 +0,0 @@ -# onceonly_2_57.m4 serial 1 -dnl Copyright (C) 2002 Free Software Foundation, Inc. -dnl This file is free software, distributed under the terms of the GNU -dnl General Public License. As a special exception to the GNU General -dnl Public License, 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_HEADER_STDC]) like AC_HEADER_STDC -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 This is like onceonly.m4, except that it uses diversions to named sections -dnl DEFAULTS and INIT_PREPARE in order to check all requested headers at once, -dnl thus reducing the size of 'configure'. Works with autoconf-2.57. The -dnl size reduction is ca. 9%. - -# AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of -# AC_CHECK_HEADERS(HEADER1 HEADER2 ...). -AC_DEFUN([AC_CHECK_HEADERS_ONCE], [ - : - AC_FOREACH([gl_HEADER_NAME], [$1], [ - AC_DEFUN([gl_CHECK_HEADER_]translit(gl_HEADER_NAME,[./-], [___]), [ - m4_divert_text([INIT_PREPARE], - [gl_header_list="$gl_header_list gl_HEADER_NAME"]) - gl_HEADERS_EXPANSION - AH_TEMPLATE(AS_TR_CPP(HAVE_[]gl_HEADER_NAME), - [Define to 1 if you have the <]gl_HEADER_NAME[> header file.]) - ]) - AC_REQUIRE([gl_CHECK_HEADER_]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], [ - : - AC_FOREACH([gl_FUNC_NAME], [$1], [ - AC_DEFUN([gl_CHECK_FUNC_]gl_FUNC_NAME, [ - m4_divert_text([INIT_PREPARE], - [gl_func_list="$gl_func_list gl_FUNC_NAME"]) - gl_FUNCS_EXPANSION - AH_TEMPLATE(AS_TR_CPP(HAVE_[]gl_FUNC_NAME), - [Define to 1 if you have the `]gl_FUNC_NAME[' function.]) - ]) - AC_REQUIRE([gl_CHECK_FUNC_]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], [ - : - AC_FOREACH([gl_DECL_NAME], [$1], [ - AC_DEFUN([gl_CHECK_DECL_]gl_DECL_NAME, [ - AC_CHECK_DECLS(gl_DECL_NAME) - ]) - AC_REQUIRE([gl_CHECK_DECL_]gl_DECL_NAME) - ]) -]) |