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ejcoumans
138
mk/autoconf/checkprog.m4
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138
mk/autoconf/checkprog.m4
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# checkprog.m4 -*- Autoconf -*-
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#==============================================================================
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# Copyright (C)2004 by Eric Sunshine <sunshine@sunshineco.com>
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#
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# This library is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Library General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version.
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#
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# This library is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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# License for more details.
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#
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# You should have received a copy of the GNU Library General Public License
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# along with this library; if not, write to the Free Software Foundation,
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# Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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#==============================================================================
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AC_PREREQ([2.56])
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#------------------------------------------------------------------------------
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# cs_bin_paths_default
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# Comma delimited list of additional directories in which tools and
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# commands might be found.
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#
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# Present Cases:
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# /usr/local/bin -- Although a common location for executables, it is
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# now-and-then absent from the default PATH setting.
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# /sw/bin -- Fink, the MacOS/X manager of Unix packages, installs
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# executables here.
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#------------------------------------------------------------------------------
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m4_define([cs_bin_paths_default], [/usr/local/bin, /sw/bin])
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#------------------------------------------------------------------------------
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# CS_CHECK_PROG(VARIABLE, PROGRAM, VALUE-IF-FOUND, [VALUE-IF-NOT-FOUND],
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# [PATH], [REJECT])
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# Simple wrapper for AC_CHECK_PROG() which ensures that the search path
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# is augmented by the directories mentioned in cs_bin_paths_default.
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#------------------------------------------------------------------------------
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AC_DEFUN([CS_CHECK_PROG],
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[_CS_PROG_PATH_PREPARE
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AC_CHECK_PROG([$1], [$2], [$3], [$4],
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m4_ifval([$5], [_CS_PROG_CLIENT_PATH([$5])]), [$6])])
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#------------------------------------------------------------------------------
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# CS_CHECK_PROGS(VARIABLE, PROGRAMS, [VALUE-IF-NOT-FOUND], [PATH])
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# Simple wrapper for AC_CHECK_PROGS() which ensures that the search path
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# is augmented by the directories mentioned in cs_bin_paths_default.
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#------------------------------------------------------------------------------
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AC_DEFUN([CS_CHECK_PROGS],
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[_CS_PROG_PATH_PREPARE
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AC_CHECK_PROGS([$1], [$2], [$3],
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m4_ifval([$4], [_CS_PROG_CLIENT_PATH([$4])]))])
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#------------------------------------------------------------------------------
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# CS_CHECK_TOOL(VARIABLE, TOOL, [VALUE-IF-NOT-FOUND], [PATH])
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# Simple wrapper for AC_CHECK_TOOL() which ensures that the search path
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# is augmented by the directories mentioned in cs_bin_paths_default.
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#------------------------------------------------------------------------------
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AC_DEFUN([CS_CHECK_TOOL],
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[_CS_PROG_PATH_PREPARE
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AC_CHECK_TOOL([$1], [$2], [$3],
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m4_ifval([$4], [_CS_PROG_CLIENT_PATH([$4])]))])
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#------------------------------------------------------------------------------
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# CS_CHECK_TOOLS(VARIABLE, TOOLS, [VALUE-IF-NOT-FOUND], [PATH])
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# Simple wrapper for AC_CHECK_TOOLS() which ensures that the search path
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# is augmented by the directories mentioned in cs_bin_paths_default.
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#------------------------------------------------------------------------------
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AC_DEFUN([CS_CHECK_TOOLS],
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[_CS_PROG_PATH_PREPARE
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AC_CHECK_TOOLS([$1], [$2], [$3],
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m4_ifval([$4], [_CS_PROG_CLIENT_PATH([$4])]))])
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#------------------------------------------------------------------------------
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# CS_PATH_PROG(VARIABLE, PROGRAM, [VALUE-IF-NOT-FOUND], [PATH])
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# Simple wrapper for AC_PATH_PROG() which ensures that the search path
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# is augmented by the directories mentioned in cs_bin_paths_default.
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#------------------------------------------------------------------------------
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AC_DEFUN([CS_PATH_PROG],
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[_CS_PROG_PATH_PREPARE
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AC_PATH_PROG([$1], [$2], [$3],
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m4_ifval([$4], [_CS_PROG_CLIENT_PATH([$4])]))])
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#------------------------------------------------------------------------------
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# CS_PATH_PROGS(VARIABLE, PROGRAMS, [VALUE-IF-NOT-FOUND], [PATH])
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# Simple wrapper for AC_PATH_PROGS() which ensures that the search path
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# is augmented by the directories mentioned in cs_bin_paths_default.
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#------------------------------------------------------------------------------
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AC_DEFUN([CS_PATH_PROGS],
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[_CS_PROG_PATH_PREPARE
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AC_PATH_PROGS([$1], [$2], [$3],
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m4_ifval([$4], [_CS_PROG_CLIENT_PATH([$4])]))])
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#------------------------------------------------------------------------------
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# CS_PATH_TOOL(VARIABLE, TOOL, [VALUE-IF-NOT-FOUND], [PATH])
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# Simple wrapper for AC_PATH_TOOL() which ensures that the search path
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# is augmented by the directories mentioned in cs_bin_paths_default.
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#------------------------------------------------------------------------------
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AC_DEFUN([CS_PATH_TOOL],
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[_CS_PROG_PATH_PREPARE
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AC_PATH_TOOL([$1], [$2], [$3],
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m4_ifval([$4], [_CS_PROG_CLIENT_PATH([$4])]))])
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#------------------------------------------------------------------------------
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# _CS_PROG_PATH_PREPARE
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# Ensure that the PATH environment variable mentions the set of
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# directories listed in cs_bin_paths_default. These directories may not
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# appear by default in the typical PATH, yet they might be common
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# locations for tools and commands.
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#------------------------------------------------------------------------------
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AC_DEFUN([_CS_PROG_PATH_PREPARE],
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[AS_REQUIRE([_AS_PATH_SEPARATOR_PREPARE])
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AS_IF([test "$cs_prog_path_prepared" != yes],
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[cs_prog_path_prepared=yes
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PATH="$PATH[]m4_foreach([cs_bin_path], [cs_bin_paths_default],
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[$PATH_SEPARATOR[]cs_bin_path])"
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export PATH])])
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#------------------------------------------------------------------------------
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# _CS_PROG_CLIENT_PATH(CLIENT-PATH)
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# Given a client-supplied replacement for PATH, augment the list by
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# appending the locations mentioned in cs_bin_paths_default.
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#------------------------------------------------------------------------------
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AC_DEFUN([_CS_PROG_CLIENT_PATH],
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[AS_REQUIRE([_AS_PATH_SEPARATOR_PREPARE])dnl
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$1[]m4_foreach([cs_bin_path], [cs_bin_paths_default],
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[$PATH_SEPARATOR[]cs_bin_path])])
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