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# Like AC_CONFIG_HEADER, but automatically create stamp file. -*- Autoconf -*-
# Copyright 1996, 1997, 2000, 2001 Free Software Foundation, Inc.
# 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, 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
# serial 4
# When config.status generates a header, we must update the stamp-h file.
# This file resides in the same directory as the config header
# that is generated. We must strip everything past the first ":",
# and everything past the last "/".
AC_PREREQ([2.52])
AC_DEFUN([AM_CONFIG_HEADER],
[dnl init our file count if it isn't already
m4_ifndef([_AM_Config_Header_Index], m4_define([_AM_Config_Header_Index], [0]))
dnl prepare to store our destination file list for use in config.status
AC_FOREACH([_AM_File], [$1],
[m4_pushdef([_AM_Dest], m4_patsubst(_AM_File, [:.*]))
m4_define([_AM_Config_Header_Index],
m4_incr(_AM_Config_Header_Index))
dnl and add it to the list of files AC keeps track of, along
dnl with our hook
AC_CONFIG_HEADERS(_AM_File,
[# update the timestamp
echo timestamp >"AS_ESCAPE(_AM_DIRNAME(]_AM_Dest[))/stamp-h]_AM_Config_Header_Index["
][$2]m4_ifval([$3], [, [$3]]))
m4_popdef([_AM_Dest])])
]) # AM_CONFIG_HEADER
# _AM_DIRNAME(PATH)
# -----------------
# Like AS_DIRNAME, only do it during macro expansion
AC_DEFUN([_AM_DIRNAME],
[m4_if(regexp([$1], [^.*[^/]//*[^/][^/]*/*$]), -1,
m4_if(regexp([$1], [^//\([^/]\|$\)]), -1,
m4_if(regexp([$1], [^/.*]), -1,
[.],
patsubst([$1], [^\(/\).*], [\1])),
patsubst([$1], [^\(//\)\([^/].*\|$\)], [\1])),
patsubst([$1], [^\(.*[^/]\)//*[^/][^/]*/*$], [\1]))[]dnl
]) # _AM_DIRNAME
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