--- pngquant-2.4.1/lib/Makefile.orig	2015-06-12 23:46:49.000000000 +0200
+++ pngquant-2.4.1/lib/Makefile	2015-06-21 15:21:49.201927767 +0200
@@ -36,7 +36,8 @@
 	$(CC) -fPIC $(CFLAGS) -c $(@:.lo=.c) -o $@
 
 $(SHAREDLIB): $(SHAREDOBJS)
-	$(CC) -shared -o $@ $^ $(LDFLAGS)
+	$(CC) -shared -o $@ $^ $(LDFLAGS) -Wl,-soname,$(SHAREDLIB)
+	ln -sf $(SHAREDLIB) libimagequant.so
 
 $(OBJS): $(wildcard *.h) config.mk