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Diffstat (limited to 'config/onceonly.m4')
-rw-r--r-- | config/onceonly.m4 | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/config/onceonly.m4 b/config/onceonly.m4 deleted file mode 100644 index f6fec37cb..000000000 --- a/config/onceonly.m4 +++ /dev/null @@ -1,63 +0,0 @@ -# onceonly.m4 serial 3 -dnl Copyright (C) 2002, 2003 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 Autoconf version 2.57 or newer is recommended. -AC_PREREQ(2.54) - -# 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_]m4_quote(translit(defn([gl_HEADER_NAME]), - [-./], [___])), [ - AC_CHECK_HEADERS(gl_HEADER_NAME) - ]) - AC_REQUIRE([gl_CHECK_HEADER_]m4_quote(translit(gl_HEADER_NAME, - [-./], [___]))) - ]) -]) - -# 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_]defn([gl_FUNC_NAME]), [ - AC_CHECK_FUNCS(defn([gl_FUNC_NAME])) - ]) - AC_REQUIRE([gl_CHECK_FUNC_]defn([gl_FUNC_NAME])) - ]) -]) - -# 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_]defn([gl_DECL_NAME]), [ - AC_CHECK_DECLS(defn([gl_DECL_NAME])) - ]) - AC_REQUIRE([gl_CHECK_DECL_]defn([gl_DECL_NAME])) - ]) -]) |