diff --git a/build-test.sh b/build-test.sh
index 039b2d79..c1254617 100644
--- a/build-test.sh
+++ b/build-test.sh
@@ -14,6 +14,7 @@ fi
 : ${OUTPUT:=$1}
 : ${OUTPUT:=bin/xash3d-signed.apk}
 sh gen-version.sh test build
+sh gen-config.sh test
 rm assets/extras.pak
 python2.7 makepak.py xash-extras assets/extras.pak
 $AAPT package -m -J gen/ --rename-manifest-package in.celest.xash3d.hl -M AndroidManifest.xml -S test/res -I $ANDROID_JAR
diff --git a/gen-config.sh b/gen-config.sh
new file mode 100644
index 00000000..e92ebcfd
--- /dev/null
+++ b/gen-config.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+git update-index --assume-unchanged src/in/celest/xash3d/XashConfig.java
+PKG_TEST=false
+if [[ $* =~ "test" ]] ; then  export PKG_TEST=true; fi
+CHECK_SIGNATURES=false
+if [[ $* =~ "sign" ]] ; then  export CHECK_SIGNATURES=true; fi
+RELEASE=false
+if [[ $* =~ "release" ]] ; then  export RELEASE=true; fi
+GP_VERSION=false
+if [[ $* =~ "gp" ]] ; then  export GP_VERSION=true; fi
+_V="public static final boolean"
+echo package in.celest.xash3d\; >src/in/celest/xash3d/XashConfig.java
+echo public class XashConfig { >>src/in/celest/xash3d/XashConfig.java
+echo $_V PKG_TEST = $PKG_TEST\; >>src/in/celest/xash3d/XashConfig.java
+echo $_V CHECK_SIGNATURES = $CHECK_SIGNATURES\; >>src/in/celest/xash3d/XashConfig.java
+echo $_V RELEASE = $RELEASE\; >>src/in/celest/xash3d/XashConfig.java
+echo $_V GP_VERSION = $GP_VERSION\; >>src/in/celest/xash3d/XashConfig.java
+echo } >>src/in/celest/xash3d/XashConfig.java
+cat src/in/celest/xash3d/XashConfig.java
+
+