Imported from libpng-1.0.9beta3.tar

2025-07-10 18:04:09 +02:00 · 2000-11-23 11:51:42 -06:00
parent f5ed0e130c
commit d56aca7104
60 changed files with 369 additions and 190 deletions
--- a/scripts/makefile.acorn
+++ b/scripts/makefile.acorn
@@ -2,40 +2,40 @@


 # Toolflags:
-CCflags = -c -depend !Depend -IC:,Zlib: -g -throwback  -DRISCOS  -fnah 
+CCflags = -c -depend !Depend -IC:,Zlib: -g -throwback  -DRISCOS  -fnah
 C++flags = -c -depend !Depend -IC: -throwback
 Linkflags = -aif -c++ -o $@
 ObjAsmflags = -throwback -NoCache -depend !Depend
 CMHGflags = 
-LibFileflags = -c -l -o $@ 
+LibFileflags = -c -l -o $@
 Squeezeflags = -o $@


 # Final targets:
@.libpng-lib:   @.o.png @.o.pngerror @.o.pngrio @.o.pngwio @.o.pngmem \
 	@.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngrtran \
-	@.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil 
+	@.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil
 	LibFile $(LibFileflags) @.o.png @.o.pngerror @.o.pngrio @.o.pngrtran \
 	@.o.pngmem @.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngwio \
-	@.o.pngrutil @.o.pngtrans  @.o.pngwrite @.o.pngwtran @.o.pngwutil 
+	@.o.pngrutil @.o.pngtrans  @.o.pngwrite @.o.pngwtran @.o.pngwutil
@.mm-libpng-lib:   @.mm.png @.mm.pngerror @.mm.pngrio @.mm.pngwio @.mm.pngmem \
 	@.mm.pngpread @.mm.pngset @.mm.pngget @.mm.pngread @.mm.pngrtran \
-	@.mm.pngrutil @.mm.pngtrans @.mm.pngwrite @.mm.pngwtran @.mm.pngwutil 
+	@.mm.pngrutil @.mm.pngtrans @.mm.pngwrite @.mm.pngwtran @.mm.pngwutil
 	LibFile $(LibFileflags) @.mm.png @.mm.pngerror @.mm.pngrio \
 	@.mm.pngwio @.mm.pngmem @.mm.pngpread @.mm.pngset @.mm.pngget \
 	@.mm.pngread @.mm.pngrtran @.mm.pngrutil @.mm.pngtrans @.mm.pngwrite \
-	@.mm.pngwtran @.mm.pngwutil 
+	@.mm.pngwtran @.mm.pngwutil


 # User-editable dependencies:
 # (C) Copyright 1997 Tom Tanner
-Test: @.pngtest 
+Test: @.pngtest
 	<Prefix$Dir>.pngtest
 	@remove <Prefix$Dir>.pngtest

 #It would be nice if you could stop "make" listing from here on!
-@.pngtest:   @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib 
-	Link $(Linkflags) @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib 
+@.pngtest:   @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib
+	Link $(Linkflags) @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib

 .SUFFIXES: .o .mm .c

--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -0,0 +1,84 @@
+# makefile for libpng using gcc (generic, static library)
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# Copyright (C) 2000 Cosmin Truta
+# Copyright (C) 2000 Marc O. Gloor (AIX support added, from makefile.gcc)
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Location of the zlib library and include files
+ZLIBINC = ../zlib
+ZLIBLIB = ../zlib
+
+# Compiler, linker, lib and other tools
+CC = gcc
+LD = $(CC)
+AR = ar rcs
+RANLIB = ranlib
+RM = rm -f
+
+# read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
+# have to change it.
+PNGMAJ = 2
+PNGMIN = 1.0.9beta3
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+prefix=/usr/local
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+
+CDEBUG = -g -DPNG_DEBUG=5
+LDDEBUG =
+CRELEASE = -O2
+LDRELEASE = -s
+CFLAGS = -I$(ZLIBINC) -Wall $(CRELEASE)
+LDFLAGS = -L. -L$(ZLIBLIB) -lpng -lz -lm $(LDRELEASE)
+
+# File extensions
+O=.o
+A=.a
+E=
+
+# Variables
+OBJS = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
+	pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O) \
+	pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
+
+# Targets
+all: libpng$(A) pngtest$(E)
+
+libpng$(A): $(OBJS)
+	$(AR) $@ $(OBJS)
+	$(RANLIB) $@
+
+test: pngtest$(E)
+	./pngtest$(E)
+
+pngtest$(E): pngtest$(O) libpng$(A)
+	$(LD) -o $@ pngtest$(O) $(LDFLAGS)
+
+install: libpng.a
+	-@if [ ! -d $(INCPATH)  ]; then mkdir $(INCPATH); fi
+	-@if [ ! -d $(LIBPATH) ]; then mkdir $(LIBPATH); fi
+	cp png.h pngconf.h $(INCPATH)
+	chmod 644 $(INCPATH)/png.h $(INCPATH)/pngconf.h
+	cp libpng.a $(LIBPATH)
+
+clean:
+	/bin/rm -f *.o libpng.a libpng.so* pngtest pngout.png
+
+png$(O): png.h pngconf.h
+pngerror$(O): png.h pngconf.h
+pngget$(O): png.h pngconf.h
+pngmem$(O): png.h pngconf.h
+pngpread$(O): png.h pngconf.h
+pngread$(O): png.h pngconf.h
+pngrio$(O): png.h pngconf.h
+pngrtran$(O): png.h pngconf.h
+pngrutil$(O): png.h pngconf.h
+pngset$(O): png.h pngconf.h
+pngtest$(O): png.h pngconf.h
+pngtrans$(O): png.h pngconf.h
+pngwio$(O): png.h pngconf.h
+pngwrite$(O): png.h pngconf.h
+pngwtran$(O): png.h pngconf.h
+pngwutil$(O): png.h pngconf.h
+
--- a/scripts/makefile.amiga
+++ b/scripts/makefile.amiga
@@ -14,7 +14,7 @@ CC=sc
 #          So use V6.55 or set NOOPTGO!!!!!!!!!
 CFLAGS= NOSTKCHK PARMS=REG OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL\
 	OPTLOOP OPTRDEP=4 OPTDEP=4 OPTCOMP=4 INCLUDEDIR=$(ZLIB) \
-	DEFINE=PNG_INTERNAL 
+	DEFINE=PNG_INTERNAL
 #linker flags
 LDFLAGS= SD ND BATCH
 #link libs
--- a/scripts/makefile.bd32
+++ b/scripts/makefile.bd32
@@ -21,7 +21,7 @@ PNGLIB=png32bd.lib

 CC=bcc32
 CFLAGS= -ps -O2 -N- -k- -d -r- -w-par -w-aus -I$(ZLIBDIR) \
-  -DPNG_NO_GLOBAL_ARRAYS #-DPNG_DEBUG=5
+	-DPNG_NO_GLOBAL_ARRAYS #-DPNG_DEBUG=5
 #LINK=tlink32
 #LINK=ilink32
 LINK=bcc32
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -31,7 +31,7 @@ RANLIB=ranlib
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.9beta2
+PNGMIN = 1.0.9beta3
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # where make install puts libpng.a, libpng.so*, and png.h
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -2,7 +2,7 @@
 #   builds both dll (with import lib) and static lib versions
 #   of the library, and builds two copies of pngtest: one
 #   statically linked and one dynamically linked.
-#   
+#
 #   based on makefile for linux-elf w/mmx by:
 # Copyright (C) 1998-2000 Greg Roelofs
 # Copyright (C) 1996, 1997 Andreas Dilger
@@ -33,12 +33,12 @@ WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
 #CFLAGS=-DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 $(ALIGN) -funroll-loops \
 #        -fomit-frame-pointer  # $(WARNMORE) -g -DPNG_DEBUG=5
 CFLAGS=-I$(ZLIBINC) -Wall -O3 $(ALIGN) -funroll-loops \
-        -fomit-frame-pointer 
+	-fomit-frame-pointer

 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.9beta2
+PNGMIN = 1.0.9beta3
 PNGVER = $(PNGMAJ).$(PNGMIN)

 SHAREDLIB=cygpng$(PNGMAJ).dll
@@ -108,7 +108,7 @@ $(SHAREDDEF): msvc/png32ms.def
 	cat $< | sed -e '1{G;s/^\(.*\)\(\n\)/EXPORTS/;};2,/^EXPORTS/d' > $@

 $(SHAREDLIB): $(OBJSDLL) $(SHAREDDEF)
-	$(LDSHARED) -o $@ $(LDEXTRA) $(OBJSDLL) -L. -L$(ZLIBLIB) -lz 
+	$(LDSHARED) -o $@ $(LDEXTRA) $(OBJSDLL) -L. -L$(ZLIBLIB) -lz

 pngtest$(EXE): pngtest.pic.o $(SHAREDLIB)
 	$(CC) $(CFLAGS) $< $(LDFLAGS) -o $@
@@ -132,7 +132,7 @@ test-shared: pngtest$(EXE)

 install: install-static install-shared

-install-static: $(STATLIB) install-headers install-docs install-man 
+install-static: $(STATLIB) install-headers install-docs install-man
 	-@if [ ! -d $(LIBPATH) ]; then mkdir -p $(LIBPATH); fi
 	install -m 755 $(STATLIB) $(LIBPATH)

--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -17,7 +17,7 @@ ZLIBINC=../zlib
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.9beta2
+PNGMIN = 1.0.9beta3
 PNGVER = $(PNGMAJ).$(PNGMIN)

 CC=cc
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@@ -27,7 +27,7 @@ WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
 # for pgcc version 2.95.1, -O3 is buggy; don't use it.

 CFLAGS=-DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 $(ALIGN) -funroll-loops \
-        -fomit-frame-pointer  # $(WARNMORE) -g -DPNG_DEBUG=5
+	-fomit-frame-pointer  # $(WARNMORE) -g -DPNG_DEBUG=5
 LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz -lm
 LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm

@@ -37,7 +37,7 @@ RANLIB=ranlib
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.9beta2
+PNGMIN = 1.0.9beta3
 PNGVER = $(PNGMAJ).$(PNGMIN)

 INCPATH=$(prefix)/include
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -18,7 +18,7 @@ RANLIB=ranlib
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.9beta2
+PNGMIN = 1.0.9beta3
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # where make install puts libpng.a and png.h
--- a/scripts/makefile.intel
+++ b/scripts/makefile.intel
@@ -42,9 +42,9 @@ LDFLAGS=/SUBSYSTEM:CONSOLE /NOLOGO

 O=.obj

-OBJS=png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)\
-     pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)\
-     pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O) pngvcrd$(O)
+OBJS=png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O) \
+pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O) \
+pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O) pngvcrd$(O)


 all: test
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -34,7 +34,7 @@ RANLIB=ranlib
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.9beta2
+PNGMIN = 1.0.9beta3
 PNGVER = $(PNGMAJ).$(PNGMIN)

 INCPATH=$(prefix)/include
--- a/scripts/makefile.macosx
+++ b/scripts/makefile.macosx
@@ -0,0 +1,72 @@
+# makefile for libpng, MACOS X
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+CC=cc
+CFLAGS=-I$(ZLIBINC) -O # -g -DPNG_DEBUG=5
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz
+
+#RANLIB=echo
+RANLIB=ranlib
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+	pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@  $(OBJS)
+	$(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a
+	-@mkdir $(prefix)/include
+	-@mkdir $(prefix)/lib
+	cp png.h $(prefix)/include
+	cp pngconf.h $(prefix)/include
+	chmod 644 $(prefix)/include/png.h
+	chmod 644 $(prefix)/include/pngconf.h
+	cp libpng.a $(prefix)/lib
+	chmod 644 $(prefix)/lib/libpng.a
+
+clean:
+	rm -f *.o libpng.a pngtest pngout.png
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+	chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+
--- a/scripts/makefile.msc
+++ b/scripts/makefile.msc
@@ -9,7 +9,7 @@ CFLAGS=-Oait -Gs -nologo -W3 -A$(MODEL) -I..\zlib
 #-Ox generates bad code with MSC 5.1
 CC=cl
 LD=link
-LDFLAGS=/e/st:0x1500/noe 
+LDFLAGS=/e/st:0x1500/noe
 O=.obj

 #uncomment next to put error messages in a file
@@ -76,7 +76,7 @@ libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
 	lib libpng $(OBJS2);
 	lib libpng $(OBJS3);

-pngtest.exe: pngtest.obj libpng.lib 
+pngtest.exe: pngtest.obj libpng.lib
 	$(LD) $(LDFLAGS) pngtest.obj,,,libpng.lib ..\zlib\zlib.lib ;

 test: pngtest.exe
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -16,7 +16,7 @@ prefix=/usr/local
 ZLIBLIB=../zlib
 ZLIBINC=../zlib

-CFLAGS= -dy -belf -I$(ZLIBINC) -O3 
+CFLAGS= -dy -belf -I$(ZLIBINC) -O3
 LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm

 #RANLIB=ranlib
@@ -25,7 +25,7 @@ RANLIB=echo
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.9beta2
+PNGMIN = 1.0.9beta3
 PNGVER = $(PNGMAJ).$(PNGMIN)

 INCPATH=$(prefix)/include
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -19,8 +19,8 @@ CFLAGS=-I$(ZLIBINC) -O2 $(WARNMORE) -fPIC -mabi=n32 # -g -DPNG_DEBUG=5
 LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
 LDSHARED=gcc -shared

-VER=1.0.9beta2
-LIBS=libpng.so.1.0.9beta2
+VER=1.0.9beta3
+LIBS=libpng.so.1.0.9beta3
 SHAREDLIB=libpng.so
 libdir=$(prefix)/lib32

--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -31,7 +31,7 @@ RANLIB=echo
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.9beta2
+PNGMIN = 1.0.9beta3
 PNGVER = $(PNGMAJ).$(PNGMIN)

 INCPATH=$(prefix)/include
--- a/scripts/makefile.vcawin32
+++ b/scripts/makefile.vcawin32
@@ -84,7 +84,7 @@ libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
 	del libpng.lib
 	lib /OUT:libpng.lib $(OBJS1) $(OBJS2) $(OBJS3)

-pngtest.exe: pngtest.obj libpng.lib 
+pngtest.exe: pngtest.obj libpng.lib
 	$(LD) $(LDFLAGS) pngtest.obj libpng.lib ..\zlib\zlib.lib /OUT:pngtest.exe /SUBSYSTEM:CONSOLE

 test: pngtest.exe
--- a/scripts/makefile.vcwin32
+++ b/scripts/makefile.vcwin32
@@ -77,7 +77,7 @@ libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
 	del libpng.lib
 	lib /OUT:libpng.lib $(OBJS1) $(OBJS2) $(OBJS3)

-pngtest.exe: pngtest.obj libpng.lib 
+pngtest.exe: pngtest.obj libpng.lib
 	$(LD) $(LDFLAGS) pngtest.obj libpng.lib ..\zlib\zlib.lib /OUT:pngtest.exe /SUBSYSTEM:CONSOLE

 test: pngtest.exe
--- a/scripts/makevms.com
+++ b/scripts/makevms.com
@@ -14,7 +14,7 @@ $   @makevms
 $   set def [-.pngminus]
 $   @makevms
 $   set def [--]
-$   exit 
+$   exit
 $ endif
 $ Make = ""
 $ If F$Search ("Sys$System:MMS.EXE") .nes. "" Then Make = "MMS"
@@ -54,7 +54,7 @@ $ if make.eqs.""
 $  then
 $   dele pngtest.obj;*
 $   CALL MAKE png.OBJ "cc ''CCOPT' png" -
-	png.c png.h pngconf.h   
+	png.c png.h pngconf.h
 $   CALL MAKE pngpread.OBJ "cc ''CCOPT' pngpread" -
 					 pngpread.c png.h pngconf.h
 $   CALL MAKE pngset.OBJ "cc ''CCOPT' pngset" -
@@ -90,8 +90,8 @@ $   CALL MAKE libpng.OLB "lib/crea libpng.olb *.obj" *.OBJ
 $   write sys$output "Building pngtest..."
 $   CALL MAKE pngtest.OBJ "cc ''CCOPT' pngtest" -
 	pngtest.c png.h pngconf.h
-$   call make pngtest.exe - 
-	"LINK pngtest,libpng.olb/lib,''zlibsrc'libz.olb/lib" - 
+$   call make pngtest.exe -
+	"LINK pngtest,libpng.olb/lib,''zlibsrc'libz.olb/lib" -
 	pngtest.obj libpng.olb
 $   write sys$output "Testing Libpng..."
 $   run pngtest
--- a/scripts/pngdef.pas
+++ b/scripts/pngdef.pas
@@ -5,7 +5,7 @@ unit pngdef;
 interface

 const
-  PNG_LIBPNG_VER_STRING = '1.0.9beta2';
+  PNG_LIBPNG_VER_STRING = '1.0.9beta3';
  PNG_LIBPNG_VER        =  10009;

 type
@@ -209,7 +209,7 @@ const
  PNG_CRC_WARN_DISCARD = 2;  // (INVALID)           warn/discard data
  PNG_CRC_WARN_USE     = 3;  // warn/use data       warn/use data
  PNG_CRC_QUIET_USE    = 4;  // quiet/use data      quiet/use data
-  PNG_CRC_NO_CHANGE    = 5;  // use current value   use current value 
+  PNG_CRC_NO_CHANGE    = 5;  // use current value   use current value

 // Flags for png_set_filter() to say which filters to use.  The flags
 // are chosen so that they don't conflict with real filter types
@@ -241,7 +241,7 @@ const
  PNG_FILTER_HEURISTIC_DEFAULT    = 0;  // Currently "UNWEIGHTED"
  PNG_FILTER_HEURISTIC_UNWEIGHTED = 1;  // Used by libpng < 0.95
  PNG_FILTER_HEURISTIC_WEIGHTED   = 2;  // Experimental feature
-  PNG_FILTER_HEURISTIC_LAST       = 3;  // Not a valid value 
+  PNG_FILTER_HEURISTIC_LAST       = 3;  // Not a valid value

 procedure png_build_grayscale_palette(bit_depth: int; palette: png_colorp);
             stdcall;
@@ -340,7 +340,7 @@ function png_get_oFFs(png_ptr: png_structp; info_ptr: png_infop;
             var unit_type: int): png_uint_32;
             stdcall;
 function png_get_sCAL(png_ptr: png_structp; info_ptr: png_infop;
-             var unit:int; var width: png_uint_32; height: png_uint_32): 
+             var unit:int; var width: png_uint_32; height: png_uint_32):
             png_uint_32;
             stdcall
 function png_get_pCAL(png_ptr: png_structp; info_ptr: png_infop;
@@ -373,7 +373,7 @@ function png_get_sBIT(png_ptr: png_structp; info_ptr: png_infop;
             stdcall;
 function png_get_sRGB(png_ptr: png_structp; info_ptr: png_infop;
             var file_srgb_intent: int): png_uint_32;
-             stdcall; 
+             stdcall;
 function png_get_signature(png_ptr: png_structp; info_ptr: png_infop):
             png_bytep;
             stdcall;
--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@@ -297,11 +297,11 @@ EXPORTS
  png_pass_dsp_mask
 ; png_pass_width
 ; png_pass_height
-  png_get_iCCP 
+  png_get_iCCP
  png_get_sCAL
-  png_get_sPLT 
-  png_set_iCCP 
-  png_set_sPLT 
+  png_get_sPLT
+  png_set_iCCP
+  png_set_sPLT
  png_free_data

  png_IHDR