kc3-lang/libpng/scripts/makefile.emcc

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• Hash : 1cdde118
  Author :
  Date : 2024-02-11T23:14:09
  

  build: Update the makefiles for the benefit of cross-compilation
  
  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.
  

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• scripts/makefile.emcc

• # makefile for libpng using emscripten
  # Copyright (C) 2000, 2014, 2019-2024 Cosmin Truta
  # Copyright (C) 2021 Kirk Roerig
  # Copyright (C) 2008, 2014 Glenn Randers-Pehrson
  # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
  #
  # This code is released under the libpng license.
  # For conditions of distribution and use, see the disclaimer
  # and license in png.h
  
  # Location of the zlib library and include files
  ZLIBINC = ../zlib
  ZLIBLIB = ../zlib
  
  # Compiler, linker, lib and other tools
  CC = emcc
  LD = $(CC)
  AR = emar
  RANLIB = emranlib
  CP = cp
  RM_F = rm -f
  
  CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
  CFLAGS = -O2 -Wall -Wextra -Wundef
  ARFLAGS = rc
  LDFLAGS = -L$(ZLIBLIB)
  PNGTEST_LDFLAGS = --preload-file=pngtest.png
  LIBS = -lz -lm
  
  # 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
  
  # Targets
  all: static
  
  pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
  	$(CP) $(PNGLIBCONF_H_PREBUILT) $@
  
  .c.o:
  	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
  
  static: libpng.a pngtest
  
  shared:
  	@echo This makefile cannot create shared libraries.
  	@false
  
  libpng.a: $(OBJS)
  	$(AR) $(ARFLAGS) $@ $(OBJS)
  	$(RANLIB) $@
  
  test: pngtest
  	node ./pngtest
  
  pngtest: pngtest.o libpng.a
  	$(LD) $(LDFLAGS) $(PNGTEST_LDFLAGS) -o $@ pngtest.o libpng.a $(LIBS)
  
  clean:
  	$(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h
  	$(RM_F) pngtest.data pngtest.wasm
  
  png.o:      png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngget.o:   png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngmem.o:   png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngread.o:  png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngrio.o:   png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngset.o:   png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngwio.o:   png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
  
  pngtest.o:  png.h pngconf.h pnglibconf.h
  

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