diff --git a/.gitignore b/.gitignore
index c1d4dd47df..33895d5e43 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@
/bin/plovr*.jar
/jsdoc/
/plovr*.jar
+/webgl-debug.js
diff --git a/Makefile b/Makefile
index 653b2f1a08..e772a1df24 100644
--- a/Makefile
+++ b/Makefile
@@ -46,6 +46,9 @@ GSLINT_EXCLUDES= \
src/ol/renderer/TileLayerRenderer.js \
src/ol/renderer/WebGL.js
+.PHONY: all
+all: build webgl-debug.js
+
.PHONY: build
build: $(PLOVR_JAR)
java -jar $(PLOVR_JAR) build main.json >api.js
@@ -58,5 +61,8 @@ serve: $(PLOVR_JAR)
lint: $(CLOSURE_LINTER)
gjslint --strict $(filter-out $(GSLINT_EXCLUDES),$(shell find externs src -name \*.js))
+webgl-debug.js:
+ curl https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/sdk/debug/webgl-debug.js > $@
+
$(PLOVR_JAR):
curl http://plovr.googlecode.com/files/$(PLOVR_JAR) > $@
diff --git a/skeleton.html b/skeleton.html
index dfe546215c..9c1540a011 100644
--- a/skeleton.html
+++ b/skeleton.html
@@ -12,6 +12,7 @@
+