# makefile for libpng.a and libpng16.so on Linux ELF with gcc # Copyright (C) 2020-2022 Cosmin Truta # Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2014 Greg Roelofs and # Glenn Randers-Pehrson # Copyright (C) 1996, 1997 Andreas Dilger # # This code is released under the libpng license. # For conditions of distribution and use, see the disclaimer # and license in png.h # Library name: LIBNAME=libpng16 PNGMAJ=16 # Shared library names: LIBSO=$(LIBNAME).so LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ) # Utilities: CC=gcc AR_RC=ar rc RANLIB=ranlib MKDIR_P=mkdir -p LN_SF=ln -sf CP=cp RM_F=rm -f # Where the zlib library and include files are located. #ZLIBLIB=/usr/local/lib #ZLIBINC=/usr/local/include ZLIBLIB=../zlib ZLIBINC=../zlib # Compiler and linker flags NOHWOPT=-DPNG_ARM_NEON_OPT=0 -DPNG_MIPS_MSA_OPT=0 \ -DPNG_POWERPC_VSX_OPT=0 -DPNG_INTEL_SSE_OPT=0 WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \ -Wmissing-declarations -Wtraditional -Wcast-align \ -Wstrict-prototypes -Wmissing-prototypes # -Wconversion DEFS=$(NOHWOPT) CPPFLAGS=-I$(ZLIBINC) $(DEFS) # -DPNG_DEBUG=5 CFLAGS=-O3 -funroll-loops -Wall -Wextra -Wundef # $(WARNMORE) -g LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm # -g LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm # -g # Pre-built configuration # See scripts/pnglibconf.mak for more options PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt # File lists OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \ pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \ pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o OBJSDLL = $(OBJS:.o=.pic.o) .SUFFIXES: .c .o .pic.o .c.o: $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $< .c.pic.o: $(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c all: libpng.a $(LIBSO) pngtest pngtest-static pnglibconf.h: $(PNGLIBCONF_H_PREBUILT) $(CP) $(PNGLIBCONF_H_PREBUILT) $@ libpng.a: $(OBJS) $(AR_RC) $@ $(OBJS) $(RANLIB) $@ $(LIBSO): $(LIBSOMAJ) $(LN_SF) $(LIBSOMAJ) $(LIBSO) $(LIBSOMAJ): $(OBJSDLL) $(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL) pngtest: pngtest.o $(LIBSO) $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS) pngtest-static: pngtest.o libpng.a $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A) test: pngtest pngtest-static @echo "" @echo " Running pngtest dynamically linked with $(LIBSO):" @echo "" ./pngtest @echo "" @echo " Running pngtest statically linked with libpng.a:" @echo "" ./pngtest-static install: @echo "The $@ target is no longer supported by this makefile." @false install-static: @echo "The $@ target is no longer supported by this makefile." @false install-shared: @echo "The $@ target is no longer supported by this makefile." @false clean: $(RM_F) $(OBJS) $(OBJSDLL) libpng.a $(RM_F) $(LIBSO) $(LIBSOMAJ)* pnglibconf.h $(RM_F) pngtest*.o pngtest pngtest-static pngout.png # DO NOT DELETE THIS LINE -- make depend depends on it. png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtest.o: png.h pngconf.h pnglibconf.h