configure

#!/bin/bash

# /*
#	This file is part of ghtml.
#
#    ghtml 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 3 of the License, or
#    (at your option) any later version.
#
#    ghtml 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 ghtml.  If not, see <http://www.gnu.org/licenses/>.
#
# */

PACKAGE_NAME='ghtml';

function STATUS() {
	printf "$@"  >&2;
}

function new_make_file() {
	[[ -e $MAKEFILE_NAME ]] && rm $MAKEFILE_NAME; true;
}

function make_make() { # do...
	[[ -n $MAKEFILE_NAME ]] && printf "$@" >> $MAKEFILE_NAME;
} 

STATUS "Parsing possible configuration resources...\n";

CONFIG_GUESS="
	/usr/share/automake/config.guess
	/usr/share/automake-1.11/config.guess
	/usr/share/automake-1.4/config.guess
	/usr/share/libtool/config/config.guess
	/usr/share/misc/config.guess
"

for CFG in $CONFIG_GUESS; do
	[[ -x $CFG ]] && {
		CONFIG_SYS_TYPE=`${CFG}`
	}
done

[[ -n $CONFIG_SYS_TYPE ]] || {
	STATUS "Fatal error: Unable to locate \`config.guess'\n";
	exit 1;
}

STATUS "System type detected... ($CONFIG_SYS_TYPE)\n";

REQUIRED_PKG_CONFIGS=" --exists --print-errors
	webkitgtk-3.0
	seed
"

STATUS "Checking build requirements...\n";

PKG_CONFIG_ERROR=`pkg-config $REQUIRED_PKG_CONFIGS 2>&1`;

[[ -n $PKG_CONFIG_ERROR ]] && {
	STATUS "CONFIG FATAL: `grep "not found" <<<"$PKG_CONFIG_ERROR"`\n";
	exit 1;
}

# #################################################################################### #

# @ Detect your system here as shown and name the appropriate makefile.

[[ $CONFIG_SYS_TYPE =~ 'linux' ]] && {
	MAKEFILE_NAME=makefile;
}

# @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @

[[ -z $MAKEFILE_NAME ]] && { # Fatal: system type was not handled.

	STATUS "\nUnknown build system type: \`$CONFIG_SYS_TYPE'\n";
	STATUS "configuration cannot proceed.\n\n";

	STATUS "This does not mean the package will not build, it means\n";
	STATUS "that I don't know anymore steps required to build it for\n"
	STATUS "your system. You may consult the files in the build directory\n";
	STATUS "for further guidance and or update this config file to support your\n";
	STATUS "system by detecting the type and providing the makefile content.\n";
	STATUS "on the fly.\n\n";

	STATUS "please push system support updates to: pc.wiz.tt@gmail.com\n\n";

	exit 1;

}

# #################################################################################### #

# @ Detect your system here and import a defined make file, or script one as shown
# @ below. make_make appends text to the makefile content.

[[ $CONFIG_SYS_TYPE =~ 'linux' ]] && {
	new_make_file;
	make_make "# Automatically Generated $MAKEFILE_NAME for $PACKAGE_NAME\n\n";
	make_make "include build/release/native-pc-linux-gnu\n";
}

# @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @

STATUS "ready to call $MAKEFILE_NAME to build $PACKAGE_NAME\n";