Added Ubuntu 18 support

mk/linux/build-zg-nodeps.sh

@@ -323,5 +323,5 @@ else
         echo 'BUILD COMPLETE.'
         echo ''
         echo 'To launch ZetaGlest from the current directory, use:'
-        echo '  ./zetaglest.sh'
+        echo '  ./build/zetaglest'
 fi

mk/linux/zetaglest.sh

@@ -1,6 +0,0 @@
-#!/bin/bash
-export DBUS_FATAL_WARNINGS=0
-unset XMODIFIERS
-cd build
-./zetaglest
-cd ..

source/glest_game/main/main.cpp

@@ -8428,6 +8428,8 @@ namespace Game {
 } //end namespace
 
 int main(int argc, char **argv) {
+	setenv("DBUS_FATAL_WARNINGS", "0", 1);
+	unsetenv("XMODIFIERS");
 	int result = mainSetup(argc,argv);
 	if (result == 0)
 		result = Game::glestMainWrapper(argc, argv);