Don't build documentation by default

Makefile

@@ -120,9 +120,9 @@ doc:
 	@cd doc/ && doxygen Doxyfile
 	@echo "Generated docs into doc/html"
 
-all: check-cross-compile deps $(foreach s,$(SUB_DIRS),$(s)-build) doc
+all: check-cross-compile deps $(foreach s,$(SUB_DIRS),$(s)-build)
 
-install: depsinstall $(SUB_DIRS) doc
+install: depsinstall $(SUB_DIRS)
 	@cd common/include && install $(PUBHEADERS) $(DCDBDEPLOYPATH)/include/dcdb && cd ..
 	@echo DONE