# makefile for libpng
+# Copyright (C) 2002, 2006 Glenn Randers-Pehrson
# 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
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
# Where the zlib library and include files are located
#ZLIBLIB=/usr/local/lib
#ZLIBINC=/usr/local/include
ZLIBINC=../zlib
CC=cc
-CFLAGS=-I$(ZLIBINC) -O # -g -DPNG_DEBUG=1
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
-
-#RANLIB=echo
+AR_RC=ar rc
+MKDIR_P=mkdir
+LN_SF=ln -sf
RANLIB=ranlib
+RM_F=rm -f
-# where make install puts libpng.a and png.h
-prefix=/usr/local
+CFLAGS=-I$(ZLIBINC) -O # -g -DPNG_DEBUG=5
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
all: libpng.a pngtest
libpng.a: $(OBJS)
- ar rc $@ $(OBJS)
+ $(AR_RC) $@ $(OBJS)
$(RANLIB) $@
pngtest: pngtest.o libpng.a
./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 $(prefix)/lib/libpng.a
+ -@$(MKDIR_P) $(DESTDIR)$(INCPATH)
+ -@$(MKDIR_P) $(DESTDIR)$(INCPATH)/libpng
+ -@$(MKDIR_P) $(DESTDIR)$(LIBPATH)
+ -@$(RM_F) $(DESTDIR)$(INCPATH)/png.h
+ -@$(RM_F) $(DESTDIR)$(INCPATH)/pngconf.h
+ cp png.h $(DESTDIR)$(INCPATH)/libpng
+ cp pngconf.h $(DESTDIR)$(INCPATH)/libpng
+ chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h
+ chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h
+ (cd $(DESTDIR)$(INCPATH); ln -f -s libpng/* .)
+ cp libpng.a $(DESTDIR)$(LIBPATH)
+ chmod 644 $(DESTDIR)$(LIBPATH)/libpng.a
clean:
- rm -f *.o libpng.a pngtest pngout.png
+ $(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.