--- libglpng-1.45.old/Makefile
+++ libglpng-1.45/Makefile
@@ -1,8 +1,8 @@
 CFLAGS=-Wall -g -O3 -fPIC -I$(shell pwd)/include
 LDFLAGS=-lpng -lGL
 SHAREDLIBFLAGS=-shared
-DESTDIR=/usr/local
-DOCDIR=$(DESTDIR)/share/doc/libglpng
+DESTDIR=__META_PREFIX__
+DOCDIR=$(DESTDIR)/doc
 
 all: libglpng.a libglpng.so.1.45