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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.
132 lines
4.4 KiB
Plaintext
132 lines
4.4 KiB
Plaintext
# makefile for libpng.a and libpng16.so on Linux ELF with gcc
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# Copyright (C) 2020-2024 Cosmin Truta
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# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2014 Greg Roelofs and
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# Glenn Randers-Pehrson
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# Copyright (C) 1996, 1997 Andreas Dilger
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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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# Library name:
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LIBNAME=libpng16
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PNGMAJ=16
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# Shared library names:
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LIBSO=$(LIBNAME).so
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LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
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# Utilities:
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CC=gcc
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AR=ar
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RANLIB=ranlib
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LN_SF=ln -sf
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CP=cp
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RM_F=rm -f
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# Where the zlib library and include files are located.
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#ZLIBLIB=/usr/local/lib
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#ZLIBINC=/usr/local/include
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ZLIBLIB=../zlib
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ZLIBINC=../zlib
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# Compiler and linker flags
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NOHWOPT=-DPNG_ARM_NEON_OPT=0 -DPNG_MIPS_MSA_OPT=0 \
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-DPNG_POWERPC_VSX_OPT=0 -DPNG_INTEL_SSE_OPT=0
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WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
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-Wmissing-declarations -Wtraditional -Wcast-align \
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-Wstrict-prototypes -Wmissing-prototypes # -Wconversion
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DEFS=$(NOHWOPT)
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CPPFLAGS=-I$(ZLIBINC) $(DEFS) # -DPNG_DEBUG=5
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CFLAGS=-O3 -funroll-loops -Wall -Wextra -Wundef # $(WARNMORE) -g
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ARFLAGS=rc
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LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm # -g
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LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm # -g
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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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# File lists
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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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OBJSDLL = $(OBJS:.o=.pic.o)
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.SUFFIXES: .c .o .pic.o
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.c.o:
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$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
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.c.pic.o:
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$(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
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all: libpng.a $(LIBSO) pngtest pngtest-static
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pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
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$(CP) $(PNGLIBCONF_H_PREBUILT) $@
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libpng.a: $(OBJS)
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$(AR) $(ARFLAGS) $@ $(OBJS)
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$(RANLIB) $@
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$(LIBSO): $(LIBSOMAJ)
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$(LN_SF) $(LIBSOMAJ) $(LIBSO)
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$(LIBSOMAJ): $(OBJSDLL)
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$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
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pngtest: pngtest.o $(LIBSO)
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$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
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pngtest-static: pngtest.o libpng.a
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$(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
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test: pngtest pngtest-static
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@echo ""
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@echo " Running pngtest dynamically linked with $(LIBSO):"
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@echo ""
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./pngtest
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@echo ""
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@echo " Running pngtest statically linked with libpng.a:"
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@echo ""
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./pngtest-static
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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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install-static:
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@echo "The $@ target is no longer supported by this makefile."
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@false
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install-shared:
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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) $(OBJS) $(OBJSDLL) libpng.a
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$(RM_F) $(LIBSO) $(LIBSOMAJ)* pnglibconf.h
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$(RM_F) pngtest*.o pngtest pngtest-static pngout.png
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# DO NOT DELETE THIS LINE -- make depend depends on it.
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png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
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pngwutil.o pngwutil.pic.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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