build: add an empty config.sh

This helper script will contain variables with results of configure
checks, so other scripts can source it.

Source it automatically in test-functions.sh, so every test can already
make use of it.

.gitignore

@@ -127,6 +127,7 @@ Makefile.in
 /config.h
 /config.h.in
 /config.log
+/config.sh
 /config.status
 /config.sub
 /configure

config.sh.in

@@ -0,0 +1,20 @@
+#!/bin/bash -
+# (C) Copyright 2019 Red Hat Inc.
+# @configure_input@
+#
+# 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 of the License, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+# This shell script contains the results of some configure checks,
+# mostly used in other shell scripts.

configure.ac

@@ -252,6 +252,7 @@ AC_CONFIG_FILES([Makefile
                  common/utils/Makefile
                  common/visit/Makefile
                  common/windows/Makefile
+                 config.sh
                  csharp/Makefile
                  customize/Makefile
                  daemon/daemon_config.ml

tests/test-functions.sh

@@ -33,6 +33,9 @@ export LANG=C
 # parameters, so we eval those to define the variables.
 while [ $# -ge 1 ]; do eval "$1"; shift; done
 
+# Configure check results.
+source $abs_top_builddir/config.sh
+
 # Skip if $SKIP_<script_name> environment variable is set.
 # Every test should call this function first.
 skip_if_skipped ()