diff -aur gmic-2.0.0/src/Makefile gmic-2.0.0_patched/src/Makefile
--- gmic-2.0.0/src/Makefile	2017-06-05 13:56:46.795967940 +0200
+++ gmic-2.0.0_patched/src/Makefile	2017-06-05 13:56:44.950043495 +0200
@@ -541,20 +541,10 @@
 
 # header files
 gmic_stdlib.h: gmic_stdlib.gmic
-	@echo -n "> Retrieve G'MIC Standard Library..."
-	@$(WGET) gmic_stdlib.h http://gmic.eu/gmic_stdlib.h
 	@touch gmic_stdlib.h
-	@echo " done!"
 
 CImg.h:
-	@echo -n "> Retrieve CImg Library..."
-	@if [ -f ../../CImg/CImg.h ]; then \
-          if [ ! -f ./CImg.h ]; then ln -s ../../CImg/CImg.h .; fi; \
-        else \
-          $(WGET) CImg.h https://github.com/dtschump/CImg/blob/master/CImg.h?raw=true; \
-          touch CImg.h; \
-        fi
-	@echo " done!"
+	@touch CImg.h;
 
 # Generate gmic_stdlib.h file (requires 'gmic' to be installed first).
 stdlib: