diff -Nru libpng-1.0.5/scripts/makefile.linux libpng-1.0.5.new/scripts/makefile.linux
--- libpng-1.0.5/scripts/makefile.linux	Thu Oct 14 14:43:10 1999
+++ libpng-1.0.5.new/scripts/makefile.linux	Sun Oct 17 23:10:19 1999
@@ -11,8 +11,8 @@
 # Where the zlib library and include files are located
 #ZLIBLIB=/usr/local/lib
 #ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
+ZLIBLIB=/usr/lib
+ZLIBINC=
 
 ALIGN=
 # for i386:
@@ -24,8 +24,8 @@
 
 # for pgcc version 2.95.1, -O3 is buggy; don't us it.
 
-CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops \
-	$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
+CFLAGS=-I$(ZLIBINC) -Wall $(RPM_OPT_FLAGS) -funroll-loops \
+	$(ALIGN) # $(WARNMORE) -DPNG_DEBUG=5
 LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz -lm
 
 RANLIB=ranlib