# aclocal.m4 -*- autoconf -*- vim: filetype=config # # $Id$ # # Written by Keith Marshall # Copyright (C) 2009, 2010, 2013, 2020, MinGW.org Project # # # Configuration script for mingw-get # # # This is free software. Permission is granted to copy, modify and # redistribute this software, under the provisions of the GNU General # Public License, Version 3, (or, at your option, any later version), # as published by the Free Software Foundation; see the file COPYING # for licensing details. # # Note, in particular, that this software is provided "as is", in the # hope that it may prove useful, but WITHOUT WARRANTY OF ANY KIND; not # even an implied WARRANTY OF MERCHANTABILITY, nor of FITNESS FOR ANY # PARTICULAR PURPOSE. Under no circumstances will the author, or the # MinGW Project, accept liability for any damages, however caused, # arising from the use of this software. # # build_aux_prefix # ---------------- # Provides a mechanism for locating the build-aux file tree, (which # is expected to furnish supplementary M4 macro files), at configure # script generation time. This requires that the directory is named # "build-aux", but allows for its placement directly within the top # source directory, its immediate parent, or grandparent. # m4_define([build_aux_prefix],m4_esyscmd_s(dnl [for path in "" "../" "../../" do test -x ${path}build-aux/config.guess && echo $path && exit done ])) # aux_include( macro_file_path_name ) # Include a supplementary M4 macro file, assuming that it may be # found in the "build-aux/m4" directory within the prefix deduced # by the preceding "build_aux_prefix" macro. # m4_define([aux_include],[m4_include(build_aux_prefix[$1])]) # Using the above, include the supplementary M4 macro files, which # are required by this package, at "configure" generation time. # aux_include([build-aux/m4/missing.m4]) aux_include([build-aux/m4/makeopts.m4]) # MINGW_AC_CONFIG_AUX_DIR( DIRNAME ) # ---------------------------------- # Emulate the "build-aux" location strategy of "build_aux_prefix", # but at configure script run time, in respect of the "build-aux" # directory named by DIRNAME; this allows for the possibility of # relocating the "build-aux" directory, relative to $top_srcdir, # after initial configure script generation. # # Note that this performs a similar function to AC_CONFIG_AUX_DIR, # but extends the search through the parent, and the grandparent, of # $srcdir, (in addition to $builddir, and $srcdir itself); although # this can be achieved with AC_CONFIG_AUX_DIR, it makes an unholy # mess of the resultant diagnostic message, in the event that the # DIRNAME search is unsuccessful. # # Also note that this implementation further extends the behaviour # of AC_CONFIG_AUX_DIR, by AC_SUBST assignment of the result of a # successful search, to the "buildauxdir" configuration variable. # AC_DEFUN([MINGW_AC_CONFIG_AUX_DIR],dnl [m4_n([ac_val=$1])MINGW_AC_CONFIG_AUX_DIRS([$1],[$ac_val])dnl AC_SUBST([buildauxdir],[$ac_aux_dir])dnl ])# MINGW_AC_CONFIG_AUX_DIR # MINGW_AC_CONFIG_AUX_DIRS( DIRNAME, UNQUOTED_DIRNAME ) # ----------------------------------------------------- # A wrapper around the undocumented AC_CONFIG_AUX_DIRS macro, (which # provides the actual implementation of AC_CONFIG_AUX_DIR); intended # to be invoked by MINGW_AC_CONFIG_AUX_DIR, this serves as a conduit # to AC_CONFIG_AUX_DIRS, passing both the verbatim DIRNAME argument, # and its $srcdir relative alternatives derived from UNQUOTED_DIRNAME, # stripped of one level of shell quoting, by assignment to the shell # variable $ac_val, then each wrapped in shell quotes, to achieve a # tidier presentation of the diagnostic message which will result # from failure of the AC_CONFIG_AUX_DIRS search. # AC_DEFUN([MINGW_AC_CONFIG_AUX_DIRS],dnl [AC_CONFIG_AUX_DIRS([$1 "$srcdir/$2" "$srcdir/../$2" "$srcdir/../../$2"])dnl ])# MINGW_AC_CONFIG_AUX_DIRS # MINGW_AC_PACKAGE_DIST_URL( DOMAIN, PATH ) # ----------------------------------------- # Provides a mechanism for specifying the internet DOMAIN, and the # directory PATH relative to that DOMAIN, whence project packages are # to be offered for download. Precious variables PACKAGE_DIST_DOMAIN # and PACKAGE_DIST_DIR are assigned the default values as specified # for DOMAIN and PATH respectively; AC_SUBST is called for each. # AC_DEFUN([MINGW_AC_PACKAGE_DIST_URL], [: ${PACKAGE_DIST_DOMAIN="$1"} ${PACKAGE_DIST_DIR="$2"}dnl AC_ARG_VAR([PACKAGE_DIST_DOMAIN],[Package download domain url [$1]])dnl AC_ARG_VAR([PACKAGE_DIST_DIR],[Package download host directory [$2]])dnl ])# MINGW_AC_PACKAGE_DIST_URL # MINGW_AC_OUTPUT # --------------- # A wrapper for AC_OUTPUT itself, to ensure that missing prerequisite # checks are completed, before the final output stage. # AC_DEFUN([MINGW_AC_OUTPUT], [AC_REQUIRE([_MINGW_AC_ABORT_IF_MISSING_PREREQ])dnl AC_OUTPUT($@)dnl ])# MINGW_AC_OUTPUT # MINGW_AC_PROG_LEX # ----------------- # A wrapper for AC_PROG_LEX; it causes configure to abort, issuing a # missing lex diagnostic, when building from SCM sources, (as indicated # by absence of ${srcdir}/src/pkginfo/pkginfo.c), when no lex processor # appears to be available. Furthermore, if AC_PROG_LEX fails to assign # a sane value to LEX_OUTPUT_ROOT, this provides lex.yy as default. # AC_DEFUN([MINGW_AC_PROG_LEX], [AC_REQUIRE([AC_PROG_LEX])dnl AS_IF([test x${LEX_OUTPUT_ROOT} = x],[LEX_OUTPUT_ROOT=lex.yy]) AS_IF([test x${LEX} != x:],,[test -f ${srcdir}/src/pkginfo/pkginfo.c],, [MINGW_AC_ASSERT_MISSING([lex (or for preference, flex)], [flex-2.5.35-2-msys-1.0.13-bin.tar.lzma (or equivalent)])dnl ])dnl ])# MINGW_AC_PROG_LEX # # $RCSfile$: end of file