nuclear@2: #!/bin/sh
nuclear@2: 
nuclear@7: cfgfile=src/config.h
nuclear@7: modfile=src/modules.c
nuclear@19: logfile=config.log
nuclear@19: echobin=`which echo`
nuclear@19: 
nuclear@19: rm -f $logfile
nuclear@19: 
nuclear@19: message()
nuclear@19: {
nuclear@19: 	$echobin $* | tee -a $logfile
nuclear@19: }
nuclear@7: 
nuclear@9: extract()
nuclear@9: {
nuclear@12: 	grep "$2:" $1 | sed "s/^.*$2: *\(.*\)\*\//\1/"
nuclear@9: }
nuclear@9: 
nuclear@7: get_depline()
nuclear@2: {
nuclear@9: 	extract $1 link-with
nuclear@9: }
nuclear@9: 
nuclear@9: get_framework()
nuclear@9: {
nuclear@9: 	extract $1 mac-framework
nuclear@2: }
nuclear@2: 
nuclear@7: get_usedef()
nuclear@7: {
nuclear@7: 	grep '#ifdef *USE_WSYS_MODULE' $1 | sed 's/^.*\(USE_WSYS_MODULE_.*\)/\1/'
nuclear@7: }
nuclear@2: 
nuclear@7: try_link()
nuclear@7: {
nuclear@7: 	srcfile=/tmp/sgl-trylink.c
nuclear@7: 	aout=/tmp/sgl-a.out
nuclear@7: 
nuclear@19: 	echo >>$logfile
nuclear@19: 	echo "trying command line: cc -o $aout $srcfile $*" >>$logfile 
nuclear@19: 
nuclear@7: 	echo 'int main(void) { return 0; }' >$srcfile
nuclear@19: 	eval cc -o $aout $srcfile $1 >>$logfile 2>>$logfile
nuclear@13: 	res=$?
nuclear@13: 
nuclear@13: 	rm -f $srcfile $aout
nuclear@13: 	return $res
nuclear@7: }
nuclear@7: 
nuclear@7: # write beginning of config.h
nuclear@7: echo '#ifndef CONFIG_H_' >$cfgfile
nuclear@7: echo '#define CONFIG_H_' >>$cfgfile
nuclear@7: echo >>$cfgfile
nuclear@7: 
nuclear@7: # write beginning of modules.c
nuclear@7: echo "/* this file is generated by $0, do not edit */" >$modfile
nuclear@7: echo >>$modfile
nuclear@9: echo '#define REGISTER_MODULE(name) \' >>$modfile
nuclear@9: echo '		do { void sgl_register_##name(); sgl_register_##name(); } while(0)' >>$modfile
nuclear@9: echo >>$modfile
nuclear@7: echo 'void sgl_modules_init(void)' >>$modfile
nuclear@7: echo '{' >>$modfile
nuclear@7: 
nuclear@7: 
nuclear@7: # start scanning for modules
nuclear@19: message 'Looking for usable window system modules ...'
nuclear@7: 
nuclear@7: # collect all src/wsys_whatever.c files
nuclear@13: all_files=`ls src/wsys_*.c src/wsys_*.m 2>/dev/null`
nuclear@7: 
nuclear@7: for m in $all_files; do
nuclear@7: 	# extract USE_WSYS_MODULE_* define
nuclear@7: 	def=`get_usedef $m`
nuclear@7: 
nuclear@7: 	# extract link-with line
nuclear@9: 	if [ `uname -s` = Darwin ]; then
nuclear@9: 		dep=`get_framework $m`
nuclear@9: 		if [ -z "$dep" ]; then
nuclear@9: 			dep=`get_depline $m`
nuclear@9: 		fi
nuclear@9: 	else
nuclear@9: 		dep=`get_depline $m`
nuclear@13: 		if [ -z "$dep" ]; then
nuclear@13: 			dep=`get_framework $m`
nuclear@13: 		fi
nuclear@9: 	fi
nuclear@9: 
nuclear@15: 	name=`echo $m | sort | sed 's/src\/wsys_//' | sed 's/\.c//' | sed 's/\.m//'`
nuclear@19: 	message -n "-> trying module $name (needs: $dep) ... "
nuclear@7: 
nuclear@12: 	if try_link "$dep"; then
nuclear@19: 		message ok
nuclear@7: 
nuclear@7: 		libs="$libs $dep"
nuclear@7: 
nuclear@7: 		# emmit the USE_ define in config.h
nuclear@7: 		echo "#define $def" >>$cfgfile
nuclear@7: 		echo >>$cfgfile
nuclear@7: 
nuclear@7: 		# make the registration call in modules.c
nuclear@9: 		echo "	REGISTER_MODULE($name);" >>$modfile
nuclear@7: 	else
nuclear@19: 		message failed
nuclear@7: 	fi
nuclear@7: done
nuclear@7: echo "Will link with: $libs"
nuclear@7: 
nuclear@7: # wrap up the modules.c file
nuclear@7: echo '}' >>$modfile
nuclear@7: 
nuclear@7: # wrap up the config.h file
nuclear@7: echo '#endif	/* CONFIG_H_ */' >>$cfgfile
nuclear@7: 
nuclear@7: # generate makefile
nuclear@19: message Generating makefile ...
nuclear@7: 
nuclear@7: # hardcode prefix for now, too lazy to actually add an option...
nuclear@2: echo 'PREFIX = /usr/local' >Makefile
nuclear@7: echo "wsys_libs = $libs" >>Makefile
nuclear@2: cat Makefile.in >>Makefile
nuclear@7: 
nuclear@19: message 'Configuration complete. Run make (or gmake) to compile.'