[libpng16] Allow an easy replacement of the default pre-built configuration

header with a custom header, via the make PNGLIBCONF_H_PREBUILT
macro.

ANNOUNCE

@@ -39,6 +39,9 @@ Version 1.6.11beta02 [March 22, 2014]
   $(CP) is now used alongside $(RM_F).  Also, use 'copy' instead
     of 'cp' where applicable, and applied other minor makefile changes.
   Don't warn about invalid dimensions exceeding user limits.
+  Allow an easy replacement of the default pre-built configuration
+    header with a custom header, via the make PNGLIBCONF_H_PREBUILT
+    macro.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit

CHANGES

@@ -4888,6 +4888,9 @@ Version 1.6.11beta02 [March 22, 2014]
   $(CP) is now used alongside $(RM_F).  Also, use 'copy' instead
     of 'cp' where applicable, and applied other minor makefile changes.
   Don't warn about invalid dimensions exceeding user limits.
+  Allow an easy replacement of the default pre-built configuration
+    header with a custom header, via the make PNGLIBCONF_H_PREBUILT
+    macro.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit

scripts/makefile.amiga

@@ -31,6 +31,10 @@ AR= oml
 # make directory command
 MKDIR= makedir
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -43,8 +47,8 @@ $(AR) libpng.lib r $(OBJS)
 
 $(OBJS): pngpriv.h png.h pngconf.h pnglibconf.h pnginfo.h pngstruct.h pngdebug.h
 
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
-$(CP) scripts/pnglibconf.h.prebuilt pnglibconf.h
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
+	$(CP) $< $@
 
 pngtest: pngtest.o libpng.lib
 $(LN) <WITH <

scripts/makefile.atari

@@ -29,6 +29,10 @@ LIBPATH=$(prefix)/lib
 # you execute make install.
 DESTDIR=
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 OBJS = $(LBR)(png.o) $(LBR)(pngset.o) $(LBR)(pngget.o) $(LBR)(pngrutil.o)\
 	$(LBR)(pngtrans.o) $(LBR)(pngwutil.o)\
 	$(LBR)(pngread.o) $(LBR)(pngerror.o) $(LBR)(pngwrite.o)\
@@ -44,7 +48,7 @@ $(LBR): $(OBJS)
 
 $(OBJS): pngpriv.h png.h pngconf.h pnglibconf.h pnginfo.h pngstruct.h pngdebug.h
 
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	cp $< $@
 
 pngtest.ttp: pngtest.o $(LBR)

scripts/makefile.bc32

@@ -50,6 +50,10 @@ CFLAGS=-O2 -d -k- -w $(TARGET_CPU) $(CDEBUG)
 # -M  generate map file
 LDFLAGS=-L$(ZLIB_DIR) -M $(LDEBUG)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 ## Variables
 OBJS = \
 	png.obj \
@@ -112,9 +116,7 @@ test: pngtest.exe
 
 ## Minor Targets
 
-# see scripts\pnglibconf.mak for how to make this file
-# with different options
-pnglibconf.h: scripts\pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 png.obj: png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

scripts/makefile.beos

@@ -69,6 +69,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -82,8 +86,7 @@ OBJSDLL = $(OBJS)
 
 all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
 
-# try include scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.bor

@@ -58,6 +58,10 @@ CFLAGS=-O2 -Z -X- -w -$(TARGET_CPU) $(MODEL_ARG) $(CDEBUG)
 # -M  generate map file
 LDFLAGS=-M -L$(ZLIB_DIR) $(MODEL_ARG) $(LDEBUG)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 ## Variables
 
 OBJS = \
@@ -111,8 +115,8 @@ LIBNAME=libpng$(MODEL).lib
 
 all: libpng pngtest
 
-# try !inlude scripts\pnglibconf.mak for more options
-pnglibconf.h: scripts\pnglibconf.h.prebuilt
+# try !include scripts\pnglibconf.mak for more options
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng: $(LIBNAME)

scripts/makefile.darwin

@@ -63,6 +63,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -79,8 +83,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 
 all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.dec

@@ -58,6 +58,10 @@ CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
 CFLAGS=-std -w1 -O # -g
 LDFLAGS=-L$(ZLIBLIB) -rpath $(ZLIBLIB) libpng.a -lz -lm
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -67,8 +71,7 @@ OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 
 all: $(LIBSO) libpng.a pngtest libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.dj2

@@ -22,6 +22,10 @@ RANLIB=ranlib
 CP=cp
 RM_F=rm -f
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -31,8 +35,7 @@ OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 
 all: libpng.a pngtest
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.elf

@@ -83,6 +83,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -99,8 +103,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 
 all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.freebsd

@@ -39,6 +39,10 @@ DPADD+=		${LIBM} ${LIBZ}
 CPPFLAGS+=	-I. -I${ZLIBINC}
 CFLAGS+=	-W -Wall
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT= scripts/pnglibconf.h.prebuilt
+
 SRCS=	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
@@ -55,8 +59,7 @@ CLEANFILES= pngtest pngtest.o pngout.png
 test: pngtest
 	./pngtest
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	cp $< $@
 
 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO

scripts/makefile.gcc

@@ -30,6 +30,10 @@ LIBS = -lz -lm
 # File extensions
 EXEEXT =
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 # Variables
 OBJS =  png.o pngerror.o pngget.o pngmem.o pngpread.o \
 	pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
@@ -38,8 +42,7 @@ OBJS =  png.o pngerror.o pngget.o pngmem.o pngpread.o \
 # Targets
 all: static
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 .c.o:

scripts/makefile.hp64

@@ -68,6 +68,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -84,8 +88,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 
 all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.hpux

@@ -66,6 +66,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -82,8 +86,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 
 all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.ibmc

@@ -28,6 +28,10 @@ CPPFLAGS = -I$(ZLIBINC)
 CFLAGS = -Mc -O2 -W3
 LDFLAGS =
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 # File extensions
 O=.obj
 A=.lib
@@ -46,8 +50,7 @@ LIBS = libpng$(A) $(ZLIBLIB)/zlib$(A)
 
 all: libpng$(A) pngtest$(E)
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng$(A): $(OBJS)

scripts/makefile.intel

@@ -38,6 +38,10 @@ LD=link
 LDFLAGS=/SUBSYSTEM:CONSOLE /NOLOGO
 CP=cp
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 O=.obj
 
 OBJS=png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O) \
@@ -46,8 +50,7 @@ pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O)
 
 all: test
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

scripts/makefile.knr

@@ -39,14 +39,17 @@ RANLIB = ranlib
 CP = cp
 RM_F = rm -f
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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: ansi2knr libpng.a pngtest
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 # general rule to allow ansi2knr to work

scripts/makefile.linux

@@ -76,6 +76,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -92,8 +96,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 
 all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.mips

@@ -32,6 +32,10 @@ RANLIB=echo
 
 CP=cp
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -41,8 +45,7 @@ OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 
 all: libpng.a pngtest
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.msc

@@ -19,6 +19,10 @@ LDFLAGS=/e/st:0x1500/noe
 CP=copy
 O=.obj
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 #uncomment next to put error messages in a file
 ERRFILE= >> pngerrs
 
@@ -29,8 +33,7 @@ OBJS3 = pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O)
 
 all: libpng.lib
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

scripts/makefile.msys

@@ -74,6 +74,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 # Variables
 OBJS =  png.o pngerror.o pngget.o pngmem.o pngpread.o \
 	pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
@@ -82,8 +86,7 @@ OBJS =  png.o pngerror.o pngget.o pngmem.o pngpread.o \
 # Targets
 all: static shared
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 .c.o:

scripts/makefile.ne12bsd

@@ -37,8 +37,7 @@ CLEANFILES+=pngtest.o pngtest pnglibconf.h
 .c.o:
 	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	cp $< $@
 
 pngtest.o:	pngtest.c

scripts/makefile.netbsd

@@ -26,6 +26,10 @@ MAN=	libpng.3 libpngpf.3 png.5
 
 CPPFLAGS+=-I${.CURDIR}
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT= scripts/pnglibconf.h.prebuilt
+
 # We should be able to do something like this instead of the manual
 # uncommenting, but it core dumps for me at the moment:
 # .if ${MACHINE_ARCH} == "i386"
@@ -37,8 +41,7 @@ CLEANFILES+=pngtest.o pngtest pnglibconf.h
 .c.o:
 	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	cp $< $@
 
 pngtest.o:	pngtest.c

scripts/makefile.openbsd

@@ -31,11 +31,14 @@ MAN=	libpng.3 libpngpf.3 png.5
 DOCS=	ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
 	libpng-manual.txt
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT= scripts/pnglibconf.h.prebuilt
+
 .c.o:
 	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	cp $< $@
 
 pngtest.o:	pngtest.c

scripts/makefile.sco

@@ -62,6 +62,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -78,8 +82,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 
 all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.sggcc

@@ -72,6 +72,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -81,8 +85,7 @@ OBJS =  png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 
 all: libpng.a pngtest shared libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.sgi

@@ -75,6 +75,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -84,8 +88,7 @@ OBJS =  png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 
 all: libpng.a pngtest shared libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.so9

@@ -72,6 +72,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -88,8 +92,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 
 all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.solaris

@@ -68,6 +68,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -84,8 +88,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 
 all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.solaris-x86

@@ -67,6 +67,10 @@ DI=$(DESTDIR)$(INCPATH)
 DL=$(DESTDIR)$(LIBPATH)
 DM=$(DESTDIR)$(MANPATH)
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -83,8 +87,7 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 
 all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.std

@@ -45,6 +45,10 @@ CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
 CFLAGS = -O # -g
 LDFLAGS = -L. -L$(ZLIBLIB) -lpng -lz -lm
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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

scripts/makefile.sunos

@@ -44,6 +44,10 @@ CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
 CFLAGS=-O # $(WARNMORE)
 LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 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
@@ -53,8 +57,7 @@ OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 
 all: libpng.a pngtest
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 libpng.a: $(OBJS)

scripts/makefile.tc3

@@ -14,6 +14,10 @@ LIB=tlib
 LDFLAGS=-m$(MODEL) -L..\zlib
 CP=copy
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 O=.obj
 E=.exe
 
@@ -27,8 +31,7 @@ OBJSL3 = +pngwrite$(O) +pngrtran$(O) +pngwtran$(O) +pngrio$(O) +pngwio$(O)
 
 all: libpng$(MODEL).lib pngtest$(E)
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts/pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	$(CP) $< $@
 
 pngtest: pngtest$(E)

scripts/makefile.vcwin32

@@ -22,6 +22,10 @@ ARFLAGS = -nologo
 CP = copy
 RM = del
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
+
 # File extensions
 O=.obj
 
@@ -37,8 +41,7 @@ OBJS  = $(OBJS1) $(OBJS2) $(OBJS3)
 # Targets
 all: libpng.lib
 
-# see scripts/pnglibconf.mak for more options
-pnglibconf.h: scripts\pnglibconf.h.prebuilt
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
        $(CP) $< $@
 
 png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h