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1cdde11877
Split AR_RC into AR and ARFLAGS. The variables AR and ARFLAGS are de-facto standards (like CC and CFLAGS, LD and LDFLAGS, etc.) that may be overridden when running make. Moreover, configuring CC, LD, AR, etc., to point to a cross-platform compiler, linker, librarian, etc., is a de-facto standard practice as well. Also remove the MKDIR_P variable definitions from all makefiles. They've been leftovers from the removal of the "install*" targets.
105 lines
3.9 KiB
Plaintext
105 lines
3.9 KiB
Plaintext
# makefile for libpng
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# Copyright (C) 2020-2024 Cosmin Truta
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# Copyright (C) 2002, 2006, 2014 Glenn Randers-Pehrson
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# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
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#
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# This code is released under the libpng license.
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# For conditions of distribution and use, see the disclaimer
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# and license in png.h
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# Where the zlib library and include files are located
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#ZLIBLIB=/usr/local/lib
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#ZLIBINC=/usr/local/include
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ZLIBLIB=../zlib
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ZLIBINC=../zlib
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CC = cc
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CPP = $(CC) -E
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LD = $(CC)
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AR = ar
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RANLIB = ranlib
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MV_F = mv -f
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RM_F = rm -f
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AWK = awk
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NOHWOPT = -DPNG_ARM_NEON_OPT=0 -DPNG_MIPS_MSA_OPT=0 \
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-DPNG_POWERPC_VSX_OPT=0 -DPNG_INTEL_SSE_OPT=0
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DFNFLAGS = # DFNFLAGS contains -D options to use in the libpng build
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DFA_EXTRA = # extra files that can be used to control configuration
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CPPFLAGS = -I$(ZLIBINC) $(NOHWOPT) # -DPNG_DEBUG=5
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CFLAGS = -O # -g
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ARFLAGS = rc
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LDFLAGS = -L$(ZLIBLIB) # -g
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LIBS = -lz -lm
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# Pre-built configuration
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# See scripts/pnglibconf.mak for more options
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PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
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OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
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pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
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pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
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.c.o:
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$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
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all: libpng.a pngtest
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# The standard pnglibconf.h exists as scripts/pnglibconf.h.prebuilt,
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# copy this if the following doesn't work.
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pnglibconf.h: pnglibconf.dfn
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$(RM_F) $@ pnglibconf.c pnglibconf.out pnglibconf.tmp
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echo '#include "pnglibconf.dfn"' >pnglibconf.c
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@echo "## If '$(CC) -E' fails, try /lib/cpp (e.g. CPP='/lib/cpp')" >&2
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$(CPP) $(DFNFLAGS) pnglibconf.c >pnglibconf.out
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$(AWK) -f scripts/dfn.awk out=pnglibconf.tmp pnglibconf.out >&2
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$(MV_F) pnglibconf.tmp $@
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pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
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$(RM_F) $@ pnglibconf.pre pnglibconf.tmp
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@echo "## Calling $(AWK) from scripts/pnglibconf.mak" >&2
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@echo "## If 'awk' fails, try a better awk (e.g. AWK='nawk')" >&2
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$(AWK) -f scripts/options.awk out=pnglibconf.pre\
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version=search pngconf.h scripts/pnglibconf.dfa\
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pngusr.dfa $(DFA_XTRA) >&2
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$(AWK) -f scripts/options.awk out=pnglibconf.tmp pnglibconf.pre >&2
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$(MV_F) pnglibconf.tmp $@
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libpng.a: $(OBJS)
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$(AR) $(ARFLAGS) $@ $(OBJS)
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$(RANLIB) $@
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pngtest: pngtest.o libpng.a
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$(LD) $(LDFLAGS) -o $@ pngtest.o libpng.a $(LIBS)
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test: pngtest
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./pngtest
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install:
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@echo "The $@ target is no longer supported by this makefile."
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@false
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clean:
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$(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h
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$(RM_F) pnglibconf.c pnglibconf.dfn pnglibconf.out pnglibconf.pre
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# DO NOT DELETE THIS LINE -- make depend depends on it.
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png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngtest.o: png.h pngconf.h pnglibconf.h
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