--- libimagequant-2.12.5/Makefile.orig	2019-07-27 14:50:23.000000000 +0200
+++ libimagequant-2.12.5/Makefile	2019-09-17 17:00:18.143888507 +0200
@@ -64,8 +64,8 @@
 
 $(OBJS): $(wildcard *.h) config.mk
 
-$(JNILIB): $(JAVAHEADERS) $(STATICLIB) org/pngquant/PngQuant.c
-	$(CC) -g $(CFLAGS) $(LDFLAGS) $(JAVAINCLUDE) -shared -o $@ org/pngquant/PngQuant.c $(STATICLIB)
+$(JNILIB): $(JAVAHEADERS) $(SHAREDLIB) org/pngquant/PngQuant.c
+	$(CC) -g $(CFLAGS) $(LDFLAGS) $(JAVAINCLUDE) -shared -o $@ org/pngquant/PngQuant.c $(SHAREDLIB)
 
 $(JNIDLL) $(JNIDLLIMP): $(JAVAHEADERS) $(OBJS) org/pngquant/PngQuant.c
 	$(CC) -fPIC -shared -I. $(JAVAINCLUDE) -o $(JNIDLL) $^ $(LDFLAGS) -Wl,--out-implib,$(JNIDLLIMP),--output-def,$(JNIDLLDEF)
@@ -133,7 +133,7 @@
 endif
 
 $(PKGCONFIG): config.mk
-	sed 's|PREFIX|$(PREFIX)|;s|VERSION|$(VERSION)|' < imagequant.pc.in > $(PKGCONFIG)
+	sed 's|PREFIX|$(PREFIX)|;s|LIBDIR|$(LIBDIR)|;s|VERSION|$(VERSION)|' < imagequant.pc.in > $(PKGCONFIG)
 
 .PHONY: all static shared clean dist distclean dll java cargo
 .DELETE_ON_ERROR:
--- libimagequant-2.12.1/imagequant.pc.in.orig	2018-06-03 21:46:28.000000000 +0200
+++ libimagequant-2.12.1/imagequant.pc.in	2018-07-21 18:57:30.940475377 +0200
@@ -1,6 +1,6 @@
 prefix=PREFIX
 includedir=${prefix}/include
-libdir=${prefix}/lib
+libdir=LIBDIR
 
 Name: imagequant
 Description: Small, portable C library for high-quality conversion of RGBA images to 8-bit indexed-color (palette) images.