Add missing gyp dependencies for debugger

git-svn-id: http://skia.googlecode.com/svn/trunk@4405 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/Makefile b/Makefile
index 7ad2106..f4b459b 100644
--- a/Makefile
+++ b/Makefile
@@ -35,6 +35,10 @@
   ALL_TARGETS += SkiaAndroidApp
 endif
 
+ifneq (,$(findstring skia_debugger=on, $(GYP_DEFINES)))
+  ALL_TARGETS += debugger
+endif
+
 # Default target.  This must be listed before all other targets.
 .PHONY: default
 default: all
@@ -101,4 +105,4 @@
 else
 	echo "unknown platform $(uname)"
 	exit 1
-endif
\ No newline at end of file
+endif