Imported from libpng-1.2.9beta11.tar

2025-07-10 18:04:09 +02:00 · 2006-03-22 16:21:59 -06:00
parent 26e47d9a71
commit 4deeb795f6
55 changed files with 808 additions and 647 deletions
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -8,7 +8,7 @@

 # Modeled after libxml-config.

-version=1.2.9beta10
+version=1.2.9beta11
 prefix=""
 libdir=""
 libs=""
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -5,11 +5,21 @@
 # Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.9beta10
+PNGMIN = 1.2.9beta11
 PNGVER = $(PNGMAJ).$(PNGMIN)

+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
 CC=cc
 AR_RC=ar rc
 MKDIR_P=mkdir -p
@@ -71,7 +81,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -KPIC -o $@ $*.c

-all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -93,13 +103,13 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+$(LIBSOVER): $(OBJSDLL)
 	@case "`type ld`" in *ucb*) \
 	echo; \
 	echo '## WARNING:'; \
@@ -112,14 +122,14 @@ $(LIBNAME).so.$(PNGVER): $(OBJSDLL)
 	echo; \
 	;; \
 	esac
-	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBNAME).so.$(PNGMAJ) \
-	 -o $(LIBNAME).so.$(PNGVER) $(OBJSDLL)
+	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBSOMAJ) \
+	 -o $(LIBSOVER) $(OBJSDLL)

-libpng.so.0.$(PNGMIN): $(OBJSDLL)
-	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h libpng.so.0 \
-	 -o libpng.so.0.$(PNGMIN)  $(OBJSDLL)
+$(OLDSOVER): $(OBJSDLL)
+	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(OLDSOMAJ) \
+	 -o $(OLDSOVER)  $(OBJSDLL)

-pngtest: pngtest.o $(LIBNAME).so
+pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

 test: pngtest
@@ -141,24 +151,24 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGVER)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ).$(PNGVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_SF) libpng.so.0 libpng.so; \
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -211,8 +221,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
-	libpng-config $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* \
-	libpng.so.0.$(PNGMIN) \
+	libpng-config $(LIBSO) $(LIBSOMAJ)* \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -5,11 +5,21 @@
 # Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.9beta10
+PNGMIN = 1.2.9beta11
 PNGVER = $(PNGMAJ).$(PNGMIN)

+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
 CC=cc
 AR_RC=ar rc
 MKDIR_P=mkdir -p
@@ -71,7 +81,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -KPIC -o $@ $*.c

-all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -93,13 +103,13 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+$(LIBSOVER): $(OBJSDLL)
 	@case "`type ld`" in *ucb*) \
 	echo; \
 	echo '## WARNING:'; \
@@ -112,14 +122,14 @@ $(LIBNAME).so.$(PNGVER): $(OBJSDLL)
 	echo; \
 	;; \
 	esac
-	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBNAME).so.$(PNGMAJ) \
-	 -o $(LIBNAME).so.$(PNGVER) $(OBJSDLL)
+	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBSOMAJ) \
+	 -o $(LIBSOVER) $(OBJSDLL)

-libpng.so.0.$(PNGMIN): $(OBJSDLL)
-	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h libpng.so.0 \
-	 -o libpng.so.0.$(PNGMIN)  $(OBJSDLL)
+$(OLDSOVER): $(OBJSDLL)
+	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(OLDSOMAJ) \
+	 -o $(OLDSOVER)  $(OBJSDLL)

-pngtest: pngtest.o $(LIBNAME).so
+pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

 test: pngtest
@@ -141,24 +151,24 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGVER)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ).$(PNGVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_SF) libpng.so.0 libpng.so; \
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -211,8 +221,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
-	libpng-config $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* \
-	libpng.so.0.$(PNGMIN) \
+	libpng-config $(LIBSO) $(LIBSOMAJ)* \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -20,7 +20,7 @@ LN_SF = ln -f -s

 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.9beta10
+PNGMIN = 1.2.9beta11
 PNGVER = $(PNGMAJ).$(PNGMIN)

 prefix=/usr/local
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -5,6 +5,21 @@
 # Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
+LIBNAME=libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.9beta11
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
 CC=gcc
 AR_RC=ar rc
 MKDIR_P=mkdir -p
@@ -16,10 +31,6 @@ RM_F=/bin/rm -f
 ZLIBLIB=/usr/local/lib
 ZLIBINC=/usr/local/include

-PNGMAJ = 0
-PNGMIN = 1.2.9beta10
-PNGVER = $(PNGMAJ).$(PNGMIN)
-
 ALIGN=
 # For i386:
 # ALIGN=-malign-loops=2 -malign-functions=2
@@ -33,7 +44,7 @@ WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
 CFLAGS=-I$(ZLIBINC) -Wall -O1 -funroll-loops \
 	$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
 # LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz -lm
-LDFLAGS=-L. -Wl,-soname=$(LIBNAME).so.$(PNGMAJ) -L$(ZLIBLIB) -lz -lm
+LDFLAGS=-L. -Wl,-soname=$(LIBSOMAJ) -L$(ZLIBLIB) -lz -lm

 # where make install puts libpng.a, libpng12.so*, and png.h
 prefix=/usr/local
@@ -58,8 +69,6 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)

-LIBNAME=libpng12
-
 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
@@ -68,7 +77,7 @@ OBJSDLL = $(OBJS)

 .SUFFIXES:      .c .o

-all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -85,22 +94,22 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
-	cp $(LIBNAME).so* /boot/home/config/lib
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)
+	cp $(LIBSO)* /boot/home/config/lib

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
-	$(CC) -nostart -Wl,-soname,$(LIBNAME).so.$(PNGMAJ) -o \
-	$(LIBNAME).so.$(PNGVER) $(OBJSDLL)
+$(LIBSOVER): $(OBJSDLL)
+	$(CC) -nostart -Wl,-soname,$(LIBSOMAJ) -o \
+	$(LIBSOVER) $(OBJSDLL)

-libpng.so.0.$(PNGMIN): $(OBJSDLL)
-	$(CC) -nostart -Wl,-soname,libpng.so.0 -o \
-	libpng.so.0.$(PNGMIN) $(OBJSDLL)
+$(OLDSOVER): $(OBJSDLL)
+	$(CC) -nostart -Wl,-soname,$(OLDSOMAJ) -o \
+	$(OLDSOVER) $(OBJSDLL)

-pngtest: pngtest.o $(LIBNAME).so
+pngtest: pngtest.o $(LIBSO)
 	$(CC) -L$(ZLIBLIB) -lz -lpng12 -o pngtest pngtest.o

 test: pngtest
@@ -122,23 +131,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_SF) libpng.so.0 libpng.so; \
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -189,8 +198,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
-	$(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtesti \
-	libpng.so.0.$(PNGMIN) \
+	$(LIBSO) $(LIBSOMAJ)* pngtesti \
+	$(OLDSOVER) \
 	libpng.pc

 # DO NOT DELETE THIS LINE -- make depend depends on it.
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -80,7 +80,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
 LIBNAME = libpng12
 PNGMAJ = 0
 CYGDLL = 12
-PNGMIN = 1.2.9beta10
+PNGMIN = 1.2.9beta11
 PNGVER = $(PNGMAJ).$(PNGMIN)

 SHAREDLIB=cygpng$(CYGDLL).dll
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -16,6 +16,21 @@ exec_prefix=$prefix
 ZLIBLIB=../zlib
 ZLIBINC=../zlib

+# Library name:
+LIBNAME = libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.9beta11
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+# Shared library names:
+LIBSO=$(LIBNAME).dylib
+LIBSOMAJ=$(LIBNAME).$(PNGMAJ).dylib
+LIBSOVER=$(LIBNAME).$(PNGVER).dylib
+OLDSO=libpng.dylib
+OLDSOMAJ=libpng.0.dylib
+OLDSOVER=libpng.0.$(PNGMIN).dylib
+
+# Utilities:
 CC=cc
 AR_RC=ar rc
 MKDIR_P=mkdir -p
@@ -26,11 +41,6 @@ RM_F=/bin/rm -f
 CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops
 LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz

-PNGMAJ = 0
-PNGMIN = 1.2.9beta10
-PNGVER = $(PNGMAJ).$(PNGMIN)
-LIBNAME = libpng12
-
 INCPATH=$(prefix)/include
 LIBPATH=$(exec_prefix)/lib
 MANPATH=$(prefix)/man
@@ -62,7 +72,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -fno-common -o $@ $*.c

-all: libpng.a $(LIBNAME).dylib pngtest libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -81,27 +91,27 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).dylib: $(LIBNAME).$(PNGMAJ).dylib
-	$(LN_SF) $(LIBNAME).$(PNGMAJ).dylib $(LIBNAME).dylib
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).$(PNGMAJ).dylib: $(LIBNAME).$(PNGVER).dylib
-	$(LN_SF) $(LIBNAME).$(PNGVER).dylib $(LIBNAME).$(PNGMAJ).dylib
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).$(PNGVER).dylib: $(OBJSDLL)
+$(LIBSOVER): $(OBJSDLL)
 	$(CC) -dynamiclib \
-	 -install_name $(LIBPATH)/$(LIBNAME).$(PNGMAJ).dylib \
+	 -install_name $(LIBPATH)/$(LIBSOMAJ) \
 	 -current_version $(PNGVER) -compatibility_version $(PNGVER) \
-	 -o $(LIBNAME).$(PNGVER).dylib \
+	 -o $(LIBSOVER) \
 	 $(OBJSDLL) -L$(ZLIBLIB) -lz

-libpng.3.$(PNGMIN).dylib: $(OBJSDLL)
+$(OLDSOVER): $(OBJSDLL)
 	$(CC) -dynamiclib \
-	 -install_name $(LIBPATH)/libpng.3.dylib \
+	 -install_name $(LIBPATH)/$(OLDSOMAJ) \
 	 -current_version 3 -compatibility_version 3 \
-	 -o libpng.3.$(PNGMIN).dylib \
+	 -o $(OLDSOVER) \
 	 $(OBJSDLL) -L$(ZLIBLIB) -lz

-pngtest: pngtest.o $(LIBNAME).dylib
+pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

 test: pngtest
@@ -124,24 +134,24 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).dylib libpng.pc \
-	libpng.3.$(PNGMIN).dylib
+install-shared: install-headers $(LIBSO) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
 	-@$(RM_F) $(DL)/$(LIBNAME).$(PNGVER)*.dylib
 	-@$(RM_F) $(DL)/$(LIBNAME).$(PNGMAJ)*.dylib
-	-@$(RM_F) $(DL)/$(LIBNAME).dylib
-	-@$(RM_F) $(DL)/libpng.dylib
-	-@$(RM_F) $(DL)/libpng.3.dylib
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
 	-@$(RM_F) $(DL)/libpng.3.$(PNGMIN)*.dylib
-	cp $(LIBNAME).$(PNGVER).dylib $(DL)
-	cp libpng.3.$(PNGMIN).dylib $(DL)
-	chmod 755 $(DL)/$(LIBNAME).$(PNGVER).dylib
-	chmod 755 $(DL)/libpng.3.$(PNGMIN).dylib
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.3.$(PNGMIN).dylib libpng.3.dylib; \
-	$(LN_SF) libpng.3.dylib libpng.dylib; \
-	$(LN_SF) $(LIBNAME).$(PNGVER).dylib $(LIBNAME).$(PNGMAJ).dylib; \
-	$(LN_SF) $(LIBNAME).$(PNGMAJ).dylib $(LIBNAME).dylib)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -192,7 +202,7 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
-	libpng.3.$(PNGMIN).dylib \
+	$(OLDSOVER) \
 	libpng.pc $(LIBNAME).*dylib pngtesti

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -3,6 +3,28 @@
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
+PNGMAJ = 0
+PNGMIN = 1.2.9beta11
+PNGVER = $(PNGMAJ).$(PNGMIN)
+LIBNAME = libpng12
+
+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
+AR_RC=ar rc
+CC=cc
+MKDIR_P=mkdir
+LN_SF=ln -f -s
+RANLIB=ranlib
+RM_F=/bin/rm -f
+
 # where make install puts libpng.a and png.h
 prefix=/usr/local
 exec_prefix=$prefix
@@ -32,18 +54,6 @@ DM=$(DESTDIR)$(MANPATH)
 ZLIBLIB=../zlib
 ZLIBINC=../zlib

-PNGMAJ = 0
-PNGMIN = 1.2.9beta10
-PNGVER = $(PNGMAJ).$(PNGMIN)
-LIBNAME = libpng12
-
-AR_RC=ar rc
-CC=cc
-MKDIR_P=mkdir
-LN_SF=ln -f -s
-RANLIB=ranlib
-RM_F=/bin/rm -f
-
 CFLAGS=-std -w1 -I$(ZLIBINC) -O # -g -DPNG_DEBUG=1
 LDFLAGS=-L$(ZLIBLIB) -rpath $(ZLIBLIB) libpng.a -lz -lm

@@ -51,7 +61,7 @@ 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: $(LIBNAME).so libpng.a pngtest libpng.pc libpng-config
+all: $(LIBSO) libpng.a pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@  $(OBJS)
@@ -70,19 +80,19 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJS)
+$(LIBSOVER): $(OBJS)
 	$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB) \
-	-soname $(LIBNAME).so.$(PNGMAJ)
+	-soname $(LIBSOMAJ)

-libpng.so.0.$(PNGMIN): $(OBJS)
+$(OLDSOVER): $(OBJS)
 	$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB) \
-	-soname libpng.so.0
+	-soname $(OLDSOMAJ)

 pngtest: pngtest.o libpng.a
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
@@ -106,23 +116,23 @@ install-static: install-headers libpng.a
 	-@/bin/rm -f $(DL)/libpng.a
 	(cd $(DL); $(LN_SF)(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@/bin/rm -f $(DL)/libpng.so
-	-@/bin/rm -f $(DL)/libpng.so.0
-	-@/bin/rm -f $(DL)/libpng.so.0.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@/bin/rm -f $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@/bin/rm -f $(DL)/$(LIBSOMAJ)
+	-@/bin/rm -f $(DL)/$(OLDSO)
+	-@/bin/rm -f $(DL)/$(OLDSOMAJ)
+	-@/bin/rm -f $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_SF) libpng.so.0 libpng.so; \
-	$(LN_SF)(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	$(LN_SF)(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF)(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF)(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
 	-@/bin/rm -f $(DL)/pkgconfig/libpng.pc
@@ -175,8 +185,8 @@ test-installed:

 clean:
 	/bin/rm -f *.o libpng.a pngtest pngtesti pngout.png \
-	libpng-config $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* \
-	libpng.so.0.$(PNGMIN) \
+	libpng-config $(LIBSO) $(LIBSOMAJ)* \
+	$(OLDSOVER) \
 	libpng.pc

 # DO NOT DELETE THIS LINE -- make depend depends on it.
--- a/scripts/makefile.elf
+++ b/scripts/makefile.elf
@@ -6,14 +6,24 @@
 # Modified for Debian by Junichi Uekawa and Josselin Mouette
 # Major modifications are:
 #    * link libpng explicitly with libz and libm
-#    * libpng.so.%OLDSONUM% is a symlink rather than a different library
+#    * $(OLDSO).%OLDSONUM% is a symlink rather than a different library
 #    * versioned symbols

+# Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.9beta10
+PNGMIN = 1.2.9beta11
 PNGVER = $(PNGMAJ).$(PNGMIN)

+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
 AR_RC=ar rc
 CC=gcc
 MKDIR_P=mkdir -p
@@ -82,7 +92,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c

-all: libpng.a $(LIBNAME).so pngtest pngtest-static libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -115,25 +125,25 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJSDLL) libpng.syms
-	$(CC) -shared -Wl,-soname,$(LIBNAME).so.$(PNGMAJ) \
+$(LIBSOVER): $(OBJSDLL) libpng.syms
+	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) \
 	-Wl,-version-script,libpng.syms \
-	-o $(LIBNAME).so.$(PNGVER) \
+	-o $(LIBSOVER) \
 	$(OBJSDLL)

-libpng.so.0.$(PNGMIN): $(OBJSDLL) libpng.syms
-	$(CC) -shared -Wl,-soname,libpng.so.0 \
+$(OLDSOVER): $(OBJSDLL) libpng.syms
+	$(CC) -shared -Wl,-soname,$(OLDSOMAJ) \
 	-Wl,-version-script,libpng.syms \
-	-o libpng.so.0.$(PNGMIN) \
+	-o $(OLDSOVER) \
 	$(OBJSDLL)

-pngtest: pngtest.o $(LIBNAME).so
+pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

 pngtest-static: pngtest.o libpng.a
@@ -141,7 +151,7 @@ pngtest-static: pngtest.o libpng.a

 test: pngtest pngtest-static
 	@echo ""
-	@echo "   Running pngtest dynamically linked with $(LIBNAME).so:"
+	@echo "   Running pngtest dynamically linked with $(LIBSO):"
 	@echo ""
 	LD_LIBRARY_PATH=".:${LD_LIBRARY_PATH}" ./pngtest
 	@echo ""
@@ -165,23 +175,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_SF) libpng.so.0 libpng.so; \
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -232,8 +242,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a libpng.syms pngtest pngout.png libpng-config \
-	$(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtest-static pngtesti \
-	libpng.so.0.$(PNGMIN) \
+	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@@ -13,12 +13,21 @@
 #        there are no floating-point programs (e.g., SETI@Home) running in
 #        the background!  Context switches between MMX and FPU are expensive.

+# Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.9beta10
+PNGMIN = 1.2.9beta11
 PNGVER = $(PNGMAJ).$(PNGMIN)

-# Compiler, linker, lib and other tools
+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
 CC = gcc
 LD = $(CC)
 AR_RC = ar rc
@@ -98,7 +107,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c

-all: libpng.a $(LIBNAME).so pngtest pngtest-static libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -124,23 +133,23 @@ pnggccrd.o:	pnggccrd.c png.h pngconf.h
 pnggccrd.pic.o:	pnggccrd.c png.h pngconf.h
 	$(CC) -c $(CFLAGS) -fPIC -o $@ pnggccrd.c

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
-	$(CC) -shared -Wl,-soname,$(LIBNAME).so.$(PNGMAJ) \
-	-o $(LIBNAME).so.$(PNGVER) \
+$(LIBSOVER): $(OBJSDLL)
+	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) \
+	-o $(LIBSOVER) \
 	$(OBJSDLL)

-libpng.so.0.$(PNGMIN): $(OBJSDLL)
-	$(CC) -shared -Wl,-soname,libpng.so.0 \
-	-o libpng.so.0.$(PNGMIN) \
+$(OLDSOVER): $(OBJSDLL)
+	$(CC) -shared -Wl,-soname,$(OLDSOMAJ) \
+	-o $(OLDSOVER) \
 	$(OBJSDLL)

-pngtest: pngtest.o $(LIBNAME).so
+pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

 pngtest-static: pngtest.o libpng.a
@@ -148,7 +157,7 @@ pngtest-static: pngtest.o libpng.a

 test: pngtest pngtest-static
 	@echo ""
-	@echo "   Running pngtest dynamically linked with $(LIBNAME).so:"
+	@echo "   Running pngtest dynamically linked with $(LIBSO):"
 	@echo ""
 	./pngtest
 	@echo ""
@@ -172,23 +181,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_SF) libpng.so.0 libpng.so; \
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -239,8 +248,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
-	$(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtest-static pngtesti \
-	libpng.so.0.$(PNGMIN) \
+	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -15,6 +15,21 @@ ZLIBINC=/opt/zlib/include
 #   LDSHARED=ld -b
 #   SHAREDLIB=libz.sl

+# Library name:
+LIBNAME = libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.9beta11
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+# Shared library names:
+LIBSO=$(LIBNAME).sl
+LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).sl.$(PNGVER)
+OLDSO=libpng.sl
+OLDSOMAJ=libpng.sl.0
+OLDSOVER=libpng.sl.0.$(PNGMIN)
+
+# Utilities:
 AR_RC=ar rc
 CC=cc
 MKDIR_P=mkdir -p
@@ -30,12 +45,6 @@ CCFLAGS=-I$(ZLIBINC) -O -Ae -Wl,+vnocompatwarnings +DD64 \

 LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm

-
-PNGMAJ = 0
-PNGMIN = 1.2.9beta10
-PNGVER = $(PNGMAJ).$(PNGMIN)
-LIBNAME = libpng12
-
 # where make install puts libpng.a, libpng12.sl, and png.h
 prefix=/opt/libpng
 exec_prefix=$prefix
@@ -70,7 +79,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) +z -o $@ $*.c

-all: libpng.a $(LIBNAME).sl pngtest libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -89,19 +98,19 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).sl: $(LIBNAME).sl.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).sl.$(PNGMAJ): $(LIBNAME).sl.$(PNGVER)
-	$(LN_SF) $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).sl.$(PNGVER): $(OBJSDLL)
+$(LIBSOVER): $(OBJSDLL)
 	$(LD) -b +s \
-	+h $(LIBNAME).sl.$(PNGMAJ) -o $(LIBNAME).sl.$(PNGVER) $(OBJSDLL)
+	+h $(LIBSOMAJ) -o $(LIBSOVER) $(OBJSDLL)

-libpng.sl.3.$(PNGMIN): $(OBJSDLL)
+$(OLDSOVER): $(OBJSDLL)
 	$(LD) -b +s \
-	+h libpng.sl.3 -o libpng.sl.3.$(PNGMIN) $(OBJSDLL)
+	+h $(OLDSOMAJ) -o $(OLDSOVER) $(OBJSDLL)

 pngtest: pngtest.o libpng.a
 	$(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
@@ -125,23 +134,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).sl.$(PNGVER) libpng.pc \
-	libpng.sl.3.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).sl.$(PNGVER)* $(DL)/$(LIBNAME).sl
-	-@$(RM_F) $(DL)/$(LIBNAME).sl.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.sl
-	-@$(RM_F) $(DL)/libpng.sl.3
-	-@$(RM_F) $(DL)/libpng.sl.3.$(PNGMIN)*
-	cp $(LIBNAME).sl.$(PNGVER) $(DL)
-	cp libpng.sl.3.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).sl.$(PNGVER)
-	chmod 755 $(DL)/libpng.sl.3.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.sl.3.$(PNGMIN) libpng.sl.3; \
-	$(LN_SF) libpng.sl.3 libpng.sl; \
-	$(LN_SF) $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -194,8 +203,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
-	libpng-config $(LIBNAME).sl $(LIBNAME).sl.$(PNGMAJ)* \
-	libpng.sl.3.$(PNGMIN) \
+	libpng-config $(LIBSO) $(LIBSOMAJ)* \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -5,6 +5,21 @@
 # Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
+LIBNAME = libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.9beta11
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+# Shared library names:
+LIBSO=$(LIBNAME).sl
+LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).sl.$(PNGVER)
+OLDSO=libpng.sl
+OLDSOMAJ=libpng.sl.0
+OLDSOVER=libpng.sl.0.$(PNGMIN)
+
+# Utilities:
 CC=gcc
 LD=ld
 AR_RC=ar rc
@@ -13,7 +28,7 @@ LN_SF=ln -sf
 RANLIB=ranlib
 RM_F=/bin/rm -f

-# where "make install" puts libpng.a, libpng.sl*, png.h and pngconf.h
+# where "make install" puts libpng.a, $(OLDSO)*, png.h and pngconf.h
 prefix=/usr/local
 exec_prefix=$prefix

@@ -43,11 +58,6 @@ CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops \
 #LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm
 LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz -lm

-PNGMAJ = 0
-PNGMIN = 1.2.9beta10
-PNGVER = $(PNGMAJ).$(PNGMIN)
-LIBNAME = libpng12
-
 INCPATH=$(prefix)/include
 LIBPATH=$(exec_prefix)/lib
 MANPATH=$(prefix)/man
@@ -79,7 +89,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c

-all: libpng.a $(LIBNAME).sl pngtest libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -96,21 +106,21 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).sl: $(LIBNAME).sl.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).sl.$(PNGMAJ): $(LIBNAME).sl.$(PNGVER)
-	$(LN_SF) $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).sl.$(PNGVER): $(OBJSDLL)
+$(LIBSOVER): $(OBJSDLL)
 	$(LD) -b +s \
-	+h $(LIBNAME).sl.$(PNGMAJ) -o $(LIBNAME).sl.$(PNGVER) $(OBJSDLL)
+	+h $(LIBSOMAJ) -o $(LIBSOVER) $(OBJSDLL)

-libpng.sl.3.$(PNGMIN): $(OBJSDLL)
+$(OLDSOVER): $(OBJSDLL)
 	$(LD) -b +s \
-	+h libpng.sl.3 -o libpng.sl.3.$(PNGMIN) $(OBJSDLL)
+	+h $(OLDSOMAJ) -o $(OLDSOVER) $(OBJSDLL)

-pngtest: pngtest.o $(LIBNAME).sl
+pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

 test: pngtest
@@ -133,23 +143,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).sl.$(PNGVER) libpng.pc \
-	libpng.sl.3.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).sl.$(PNGVER)* $(DL)/$(LIBNAME).sl
-	-@$(RM_F) $(DL)/$(LIBNAME).sl.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.sl
-	-@$(RM_F) $(DL)/libpng.sl.3
-	-@$(RM_F) $(DL)/libpng.sl.3.$(PNGMIN)*
-	cp $(LIBNAME).sl.$(PNGVER) $(DL)
-	cp libpng.sl.3.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).sl.$(PNGVER)
-	chmod 755 $(DL)/libpng.sl.3.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.sl.3.$(PNGMIN) libpng.sl.3; \
-	$(LN_SF) libpng.sl.3 libpng.sl; \
-	$(LN_SF) $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -202,8 +212,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
-	libpng-config $(LIBNAME).sl $(LIBNAME).sl.$(PNGMAJ)* \
-	libpng.sl.3.$(PNGMIN) \
+	libpng-config $(LIBSO) $(LIBSOMAJ)* \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -15,6 +15,21 @@ ZLIBINC=/opt/zlib/include
 #   LDSHARED=ld -b
 #   SHAREDLIB=libz.sl

+# Library name:
+LIBNAME = libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.9beta11
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+# Shared library names:
+LIBSO=$(LIBNAME).sl
+LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).sl.$(PNGVER)
+OLDSO=libpng.sl
+OLDSOMAJ=libpng.sl.0
+OLDSOVER=libpng.sl.0.$(PNGMIN)
+
+# Utilities:
 AR_RC=ar rc
 CC=cc
 MKDIR_P=mkdir -p
@@ -22,16 +37,6 @@ LN_SF=ln -sf
 RANLIB=ranlib
 RM_F=/bin/rm -f

-CFLAGS=-I$(ZLIBINC) -O -Ae +DA1.1 +DS2.0
-# Caution: be sure you have built zlib with the same CFLAGS.
-CCFLAGS=-I$(ZLIBINC) -O -Ae +DA1.1 +DS2.0
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
-
-PNGMAJ = 0
-PNGMIN = 1.2.9beta10
-PNGVER = $(PNGMAJ).$(PNGMIN)
-LIBNAME = libpng12
-
 # where make install puts libpng.a, libpng12.sl, and png.h
 prefix=/opt/libpng
 exec_prefix=$prefix
@@ -40,6 +45,11 @@ LIBPATH=$(exec_prefix)/lib
 MANPATH=$(prefix)/man
 BINPATH=$(exec_prefix)/bin

+CFLAGS=-I$(ZLIBINC) -O -Ae +DA1.1 +DS2.0
+# Caution: be sure you have built zlib with the same CFLAGS.
+CCFLAGS=-I$(ZLIBINC) -O -Ae +DA1.1 +DS2.0
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
+
 # override DESTDIR= on the make install command line to easily support
 # installing into a temporary location.  Example:
 #
@@ -66,7 +76,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) +z -o $@ $*.c

-all: libpng.a $(LIBNAME).sl pngtest libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -85,19 +95,19 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).sl: $(LIBNAME).sl.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).sl.$(PNGMAJ): $(LIBNAME).sl.$(PNGVER)
-	$(LN_SF) $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).sl.$(PNGVER): $(OBJSDLL)
+$(LIBSOVER): $(OBJSDLL)
 	$(LD) -b +s \
-	+h $(LIBNAME).sl.$(PNGMAJ) -o $(LIBNAME).sl.$(PNGVER) $(OBJSDLL)
+	+h $(LIBSOMAJ) -o $(LIBSOVER) $(OBJSDLL)

-libpng.sl.3.$(PNGMIN): $(OBJSDLL)
+$(OLDSOVER): $(OBJSDLL)
 	$(LD) -b +s \
-	+h libpng.sl.3 -o libpng.sl.3.$(PNGMIN) $(OBJSDLL)
+	+h $(OLDSOMAJ) -o $(OLDSOVER) $(OBJSDLL)

 pngtest: pngtest.o libpng.a
 	$(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
@@ -121,23 +131,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).sl.$(PNGVER) libpng.pc \
-	libpng.sl.3.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).sl.$(PNGVER)* $(DL)/$(LIBNAME).sl
-	-@$(RM_F) $(DL)/$(LIBNAME).sl.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.sl
-	-@$(RM_F) $(DL)/libpng.sl.3
-	-@$(RM_F) $(DL)/libpng.sl.3.$(PNGMIN)*
-	cp $(LIBNAME).sl.$(PNGVER) $(DL)
-	cp libpng.sl.3.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).sl.$(PNGVER)
-	chmod 755 $(DL)/libpng.sl.3.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.sl.3.$(PNGMIN) libpng.sl.3; \
-	$(LN_SF) libpng.sl.3 libpng.sl; \
-	$(LN_SF) $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -190,8 +200,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
-	libpng-config $(LIBNAME).sl $(LIBNAME).sl.$(PNGMAJ)* \
-	libpng.sl.3.$(PNGMIN) \
+	libpng-config $(LIBSO) $(LIBSOMAJ)* \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -3,11 +3,21 @@
 # Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.9beta10
+PNGMIN = 1.2.9beta11
 PNGVER = $(PNGMAJ).$(PNGMIN)

+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
 AR_RC=ar rc
 CC=gcc
 MKDIR_P=mkdir -p
@@ -74,7 +84,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c

-all: libpng.a $(LIBNAME).so pngtest pngtest-static libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -93,23 +103,21 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
-	$(CC) -shared -Wl,-soname,$(LIBNAME).so.$(PNGMAJ) \
-	-o $(LIBNAME).so.$(PNGVER) \
+$(LIBSOVER): $(OBJSDLL)
+	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOVER) $(OBJSDLL)
+
+$(OLDSOVER): $(OBJSDLL)
+	$(CC) -shared -Wl,-soname,$(OLDSOMAJ) \
+	-o $(OLDSOVER) \
 	$(OBJSDLL)

-libpng.so.0.$(PNGMIN): $(OBJSDLL)
-	$(CC) -shared -Wl,-soname,libpng.so.0 \
-	-o libpng.so.0.$(PNGMIN) \
-	$(OBJSDLL)
-
-pngtest: pngtest.o $(LIBNAME).so
+pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

 pngtest-static: pngtest.o libpng.a
@@ -117,7 +125,7 @@ pngtest-static: pngtest.o libpng.a

 test: pngtest pngtest-static
 	@echo ""
-	@echo "   Running pngtest dynamically linked with $(LIBNAME).so:"
+	@echo "   Running pngtest dynamically linked with $(LIBSO):"
 	@echo ""
 	./pngtest
 	@echo ""
@@ -141,23 +149,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_SF) libpng.so.0 libpng.so; \
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -208,8 +216,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
-	$(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtest-static pngtesti \
-	libpng.so.0.$(PNGMIN) \
+	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.mingw
+++ b/scripts/makefile.mingw
@@ -76,7 +76,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
 LIBNAME = libpng12
 PNGMAJ = 0
 MINGDLL = 12
-PNGMIN = 1.2.9beta10
+PNGMIN = 1.2.9beta11
 PNGVER = $(PNGMAJ).$(PNGMIN)

 SHAREDLIB=libpng$(MINGDLL).dll
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -13,7 +13,7 @@ INCSDIR=${LOCALBASE}/include/libpng12

 LIB=	png12
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.9beta10
+SHLIB_MINOR=	1.2.9beta11
 SRCS=	pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 		pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 		pngwtran.c pngmem.c pngerror.c pngpread.c
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -13,7 +13,7 @@ INCSDIR=${LOCALBASE}/include/libpng

 LIB=	png
 SHLIB_MAJOR=	3
-SHLIB_MINOR=	1.2.9beta10
+SHLIB_MINOR=	1.2.9beta11
 SRCS=	pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 		pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 		pngwtran.c pngmem.c pngerror.c pngpread.c
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -7,7 +7,7 @@ LIBDIR=	${PREFIX}/lib
 MANDIR= ${PREFIX}/man/cat

 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.9beta10
+SHLIB_MINOR=	1.2.9beta11

 LIB=	png
 SRCS=	png.c pngerror.c pnggccrd.c pngget.c pngmem.c pngpread.c \
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -6,6 +6,21 @@
 # Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
+LIBNAME = libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.9beta11
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
 CC=cc
 AR_RC=ar rc
 MKDIR_P=mkdir
@@ -13,7 +28,7 @@ LN_SF=ln -f -s
 RANLIB=echo
 RM_F=/bin/rm -f

-# where make install puts libpng.a, libpng.so*, and png.h
+# where make install puts libpng.a, $(OLDSO)*, and png.h
 prefix=/usr/local
 exec_prefix=$prefix

@@ -26,11 +41,6 @@ ZLIBINC=../zlib
 CFLAGS= -dy -belf -I$(ZLIBINC) -O3
 LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz -lm

-PNGMAJ = 0
-PNGMIN = 1.2.9beta10
-PNGVER = $(PNGMAJ).$(PNGMIN)
-LIBNAME = libpng12
-
 INCPATH=$(prefix)/include/libpng
 LIBPATH=$(exec_prefix)/lib
 MANPATH=$(prefix)/man
@@ -62,7 +72,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -KPIC -o $@ $*.c

-all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -81,21 +91,21 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_FS) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_FS) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_FS) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_FS) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
-	$(CC) -G  -Wl,-h,$(LIBNAME).so.$(PNGMAJ) -o $(LIBNAME).so.$(PNGVER) \
+$(LIBSOVER): $(OBJSDLL)
+	$(CC) -G  -Wl,-h,$(LIBSOMAJ) -o $(LIBSOVER) \
 	 $(OBJSDLL)

-libpng.so.0.$(PNGMIN): $(OBJSDLL)
-	$(CC) -G  -Wl,-h,libpng.so.0 -o libpng.so.0.$(PNGMIN) \
+$(OLDSOVER): $(OBJSDLL)
+	$(CC) -G  -Wl,-h,$(OLDSOMAJ) -o $(OLDSOVER) \
 	$(OBJSDLL)

-pngtest: pngtest.o $(LIBNAME).so
+pngtest: pngtest.o $(LIBSO)
 	LD_RUN_PATH=.:$(ZLIBLIB) $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

 test: pngtest
@@ -119,23 +129,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_FS) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_FS) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_FS) libpng.so.0 libpng.so; \
-	$(LN_FS) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	$(LN_FS) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_FS) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_FS) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_FS) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_FS) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -186,8 +196,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
-	$(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtest-static pngtesti \
-	libpng.so.0.$(PNGMIN) \
+	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -3,6 +3,28 @@
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
+LIBNAME=libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.9beta11
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
+AR_RC=ar rc
+CC=gcc
+MKDIR_P=mkdir -p
+LN_SF=ln -sf
+RANLIB=echo
+RM_F=/bin/rm -f
+
 # Where make install puts libpng.a, libpng12.so, and libpng12/png.h
 # Prefix must be a full pathname.

@@ -17,18 +39,6 @@ exec_prefix=$prefix
 ZLIBLIB=../zlib
 ZLIBINC=../zlib

-LIBNAME=libpng12
-PNGMAJ = 0
-PNGMIN = 1.2.9beta10
-PNGVER = $(PNGMAJ).$(PNGMIN)
-
-AR_RC=ar rc
-CC=gcc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=echo
-RM_F=/bin/rm -f
-
 # ABI can be blank to use default for your system, -32, -o32, -n32, or -64
 # See "man abi".  zlib must be built with the same ABI.
 ABI=
@@ -36,15 +46,12 @@ ABI=
 WARNMORE= # -g -DPNG_DEBUG=5
 CFLAGS=$(ABI) -I$(ZLIBINC) -O2 $(WARNMORE) -fPIC -mabi=n32
 LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
-LDSHARED=cc $(ABI) -shared -soname $(LIBNAME).so.$(PNGMAJ) \
+LDSHARED=cc $(ABI) -shared -soname $(LIBSOMAJ) \
  -set_version sgi$(PNGMAJ).0
-LDLEGACY=cc $(ABI) -shared -soname libpng.so.0 \
+LDLEGACY=cc $(ABI) -shared -soname $(OLDSOMAJ) \
  -set_version sgi$3.0
 # See "man dso" for info about shared objects

-RANLIB=echo
-#RANLIB=ranlib
-
 INCPATH=$(prefix)/include
 LIBPATH=$(exec_prefix)/lib
 #LIBPATH=$(exec_prefix)/lib32
@@ -76,7 +83,7 @@ libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
 	$(RANLIB) $@

-shared: $(LIBNAME).so.$(PNGVER)
+shared: $(LIBSOVER)

 libpng.pc:
 	cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
@@ -93,17 +100,17 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJS)
+$(LIBSOVER): $(OBJS)
 	$(LDSHARED) -o $@ $(OBJS)
-	$(RM_F) $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)
+	$(RM_F) $(LIBSO) $(LIBSOMAJ)

-libpng.so.0.$(PNGMIN): $(OBJS)
+$(OLDSOVER): $(OBJS)
 	$(LDLEGACY) -o $@ $(OBJS)

 pngtest: pngtest.o libpng.a
@@ -121,38 +128,38 @@ install-headers: png.h pngconf.h
 	chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
 	-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h
 	-@$(RM_F) $(DI)/libpng
-	(cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
+	(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)

 install-static: install-headers libpng.a
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
 	cp libpng.a $(DL)/$(LIBNAME).a
 	chmod 644 $(DL)/$(LIBNAME).a
 	-@$(RM_F) $(DL)/libpng.a
-	(cd $(DL); ln -sf $(LIBNAME).a libpng.a)
+	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	ln -sf libpng.so.0.$(PNGMIN) libpng.so.0; \
-	ln -sf libpng.so.0 libpng.so; \
-	ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
 	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
 	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
-	(cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
+	(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)

 install-man: libpng.3 libpngpf.3 png.5
 	-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
@@ -171,7 +178,7 @@ install-config: libpng-config
 	-@$(RM_F) $(DB)/$(LIBNAME)-config
 	cp libpng-config $(DB)/$(LIBNAME)-config
 	chmod 755 $(DB)/$(LIBNAME)-config
-	(cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+	(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)

 install: install-static install-shared install-man install-config

@@ -185,7 +192,7 @@ test-dd:
 	$(CC) -I$(DI) -I$(ZLIBINC) \
 	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) \
-           -rpath $(ZLIBLIB):$(DL)\
+           -rpath $(ZLIBLIB):$(DL) \
 	   -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
 	./pngtestd pngtest.png

@@ -201,8 +208,8 @@ test-installed:

 clean:
 	$(RM_F) libpng.a pngtest pngtesti pngout.png libpng.pc libpng-config \
-	$(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* \
-	libpng.so.0.$(PNGMIN) \
+	$(LIBSO) $(LIBSOMAJ)* \
+	$(OLDSOVER) \
 	so_locations

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -3,11 +3,28 @@
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.9beta10
+PNGMIN = 1.2.9beta11
 PNGVER = $(PNGMAJ).$(PNGMIN)

+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
+AR_RC=ar rc
+CC=cc
+MKDIR_P=mkdir -p
+LN_SF=ln -sf
+RANLIB=echo
+RM_F=/bin/rm -f
+
 # Where make install puts libpng.a, libpng12.so, and libpng12/png.h
 # Prefix must be a full pathname.

@@ -22,13 +39,6 @@ exec_prefix=$prefix
 ZLIBLIB=../zlib
 ZLIBINC=../zlib

-AR_RC=ar rc
-CC=cc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=echo
-RM_F=/bin/rm -f
-
 # ABI can be blank to use default for your system, -32, -o32, -n32, or -64
 # See "man abi".  zlib must be built with the same ABI.
 ABI=
@@ -40,9 +50,9 @@ CFLAGS=$(ABI) -I$(ZLIBINC) -O $(WARNMORE) -DPNG_USE_PNGGCCRD \
  -DPNG_NO_ASSEMBLER_CODE
 LDFLAGS_A=$(ABI) -L. -L$(ZLIBLIB) -lpng12 -lz -lm
 LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
-LDSHARED=cc $(ABI) -shared -soname $(LIBNAME).so.$(PNGMAJ) \
+LDSHARED=cc $(ABI) -shared -soname $(LIBSOMAJ) \
  -set_version sgi$(PNGMAJ).0
-LDLEGACY=cc $(ABI) -shared -soname libpng.so.0 \
+LDLEGACY=cc $(ABI) -shared -soname $(OLDSOMAJ) \
  -set_version sgi$3.0
 # See "man dso" for info about shared objects

@@ -77,7 +87,7 @@ libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
 	$(RANLIB) $@

-shared: $(LIBNAME).so.$(PNGVER)
+shared: $(LIBSOVER)

 libpng.pc:
 	cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
@@ -95,17 +105,17 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJS)
+$(LIBSOVER): $(OBJS)
 	$(LDSHARED) -o $@ $(OBJS)
-	$(RM_F) $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)
+	$(RM_F) $(LIBSO) $(LIBSOMAJ)

-libpng.so.0.$(PNGMIN): $(OBJS)
+$(OLDSOVER): $(OBJS)
 	$(LDLEGACY) -o $@ $(OBJS)

 pngtest: pngtest.o libpng.a
@@ -132,23 +142,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_SF) libpng.so.0 libpng.so; \
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -203,8 +213,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png libpng.pc libpng-config \
-	$(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* \
-	libpng.so.0.$(PNGMIN) \
+	$(LIBSO) $(LIBSOMAJ)* \
+	$(OLDSOVER) \
 	so_locations

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -6,6 +6,21 @@
 # Copyright (C) 1996-1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
+PNGMAJ = 0
+PNGMIN = 1.2.9beta11
+PNGVER = $(PNGMAJ).$(PNGMIN)
+LIBNAME = libpng12
+
+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
 # gcc 2.95 doesn't work.
 CC=cc
 AR_RC=ar rc
@@ -14,7 +29,7 @@ LN_SF=ln -f -s
 RANLIB=echo
 RM_F=/bin/rm -f

-# Where make install puts libpng.a, libpng.so*, and png.h
+# Where make install puts libpng.a, $(OLDSO)*, and png.h
 prefix=/usr/local
 exec_prefix=$prefix

@@ -36,11 +51,6 @@ ZLIBINC=/usr/include
 CFLAGS=-I$(ZLIBINC) -O3
 LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm

-PNGMAJ = 0
-PNGMIN = 1.2.9beta10
-PNGVER = $(PNGMAJ).$(PNGMIN)
-LIBNAME = libpng12
-
 INCPATH=$(prefix)/include
 LIBPATH=$(exec_prefix)/lib
 MANPATH=$(prefix)/man
@@ -72,7 +82,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -KPIC -o $@ $*.c

-all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -91,13 +101,13 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+$(LIBSOVER): $(OBJSDLL)
 	@case "`type ld`" in *ucb*) \
 	echo; \
 	echo '## WARNING:'; \
@@ -110,14 +120,14 @@ $(LIBNAME).so.$(PNGVER): $(OBJSDLL)
 	echo; \
 	;; \
 	esac
-	$(LD) -G -h $(LIBNAME).so.$(PNGMAJ) \
-	 -o $(LIBNAME).so.$(PNGVER) $(OBJSDLL)
+	$(LD) -G -h $(LIBSOMAJ) \
+	 -o $(LIBSOVER) $(OBJSDLL)

-libpng.so.0.$(PNGMIN): $(OBJS)
-	$(LD) -G -h libpng.so.0 \
-	 -o libpng.so.0.$(PNGMIN) $(OBJSDLL)
+$(OLDSOVER): $(OBJS)
+	$(LD) -G -h $(OLDSOMAJ) \
+	 -o $(OLDSOVER) $(OBJSDLL)

-pngtest: pngtest.o $(LIBNAME).so
+pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

 test: pngtest
@@ -139,23 +149,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_SF) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_SF) libpng.so.0 libpng.so; \
-	$(LN_SF) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	$(LN_SF) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -208,8 +218,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
-	libpng-config $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* \
-	libpng.so.0.$(PNGMIN) \
+	libpng-config $(LIBSO) $(LIBSOMAJ)* \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -5,6 +5,21 @@
 # Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

+# Library name:
+LIBNAME = libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.9beta11
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+# Shared library names:
+LIBSO=$(LIBNAME).so
+LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
+LIBSOVER=$(LIBNAME).so.$(PNGVER)
+OLDSO=libpng.so
+OLDSOMAJ=libpng.so.0
+OLDSOVER=libpng.so.0.$(PNGMIN)
+
+# Utilities:
 AR_RC=ar rc
 CC=gcc
 MKDIR_P=mkdir -p
@@ -32,11 +47,6 @@ CFLAGS=-I$(ZLIBINC) -Wall -O \
 	# $(WARNMORE) -g -DPNG_DEBUG=5
 LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm

-PNGMAJ = 0
-PNGMIN = 1.2.9beta10
-PNGVER = $(PNGMAJ).$(PNGMIN)
-LIBNAME = libpng12
-
 INCPATH=$(prefix)/include
 LIBPATH=$(exec_prefix)/lib
 MANPATH=$(prefix)/man
@@ -68,7 +78,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c

-all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

 libpng.a: $(OBJS)
 	$(AR_RC) $@ $(OBJS)
@@ -88,13 +98,13 @@ libpng-config:
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	$(LN_FS) $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_FS) $(LIBSOMAJ) $(LIBSO)

-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	$(LN_FS) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+$(LIBSOMAJ): $(LIBSOVER)
+	$(LN_FS) $(LIBSOVER) $(LIBSOMAJ)

-$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+$(LIBSOVER): $(OBJSDLL)
 	@case "`type ld`" in *ucb*) \
 	echo; \
 	echo '## WARNING:'; \
@@ -107,14 +117,14 @@ $(LIBNAME).so.$(PNGVER): $(OBJSDLL)
 	echo; \
 	;; \
 	esac
-	$(LD) -G -h $(LIBNAME).so.$(PNGMAJ) \
-	 -o $(LIBNAME).so.$(PNGVER) $(OBJSDLL)
+	$(LD) -G -h $(LIBSOMAJ) \
+	 -o $(LIBSOVER) $(OBJSDLL)

-libpng.so.0.$(PNGMIN): $(OBJS)
-	$(LD) -G -h libpng.so.0 \
-	 -o libpng.so.0.$(PNGMIN) $(OBJSDLL)
+$(OLDSOVER): $(OBJS)
+	$(LD) -G -h $(OLDSOMAJ) \
+	 -o $(OLDSOVER) $(OBJSDLL)

-pngtest: pngtest.o $(LIBNAME).so
+pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

 test: pngtest
@@ -136,23 +146,23 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_FS) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.0.$(PNGMIN)
+install-shared: install-headers $(LIBSOVER) libpng.pc \
+	$(OLDSOVER)
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@$(RM_F) $(DL)/$(LIBNAME).so.$(PNGMAJ)
-	-@$(RM_F) $(DL)/libpng.so
-	-@$(RM_F) $(DL)/libpng.so.0
-	-@$(RM_F) $(DL)/libpng.so.0.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.0.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.0.$(PNGMIN)
+	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	-@$(RM_F) $(DL)/$(OLDSOMAJ)
+	-@$(RM_F) $(DL)/$(OLDSOVER)*
+	cp $(LIBSOVER) $(DL)
+	cp $(OLDSOVER) $(DL)
+	chmod 755 $(DL)/$(LIBSOVER)
+	chmod 755 $(DL)/$(OLDSOVER)
 	(cd $(DL); \
-	$(LN_FS) libpng.so.0.$(PNGMIN) libpng.so.0; \
-	$(LN_FS) libpng.so.0 libpng.so; \
-	$(LN_FS) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so; \
-	$(LN_FS) $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ))
+	$(LN_FS) $(OLDSOVER) $(OLDSOMAJ); \
+	$(LN_FS) $(OLDSOMAJ) $(OLDSO); \
+	$(LN_FS) $(LIBSOVER) $(LIBSO); \
+	$(LN_FS) $(LIBSOVER) $(LIBSOMAJ))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
 	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
 	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
@@ -205,8 +215,8 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
-	libpng-config $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* \
-	libpng.so.0.$(PNGMIN) \
+	libpng-config $(LIBSO) $(LIBSOMAJ)* \
+	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@@ -2,7 +2,7 @@
 ; PNG.LIB module definition file for OS/2
 ;----------------------------------------

-; Version 1.2.9beta10
+; Version 1.2.9beta11

 LIBRARY		PNG
 DESCRIPTION	"PNG image compression library for OS/2"
--- a/scripts/pngw32.def
+++ b/scripts/pngw32.def
@@ -5,7 +5,7 @@
 LIBRARY

 EXPORTS
-;Version 1.2.9beta10
+;Version 1.2.9beta11
  png_build_grayscale_palette  @1
  png_check_sig        @2
  png_chunk_error      @3