IABSD.fr/xenocara/lib/libpng/scripts/makefile.linux

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• Author : ajacoutot
  Date : 2025-09-17 14:44:36
  Hash : e8681e75
  Message : Import source for libpng 1.6.50 (verbatim).

• lib/libpng/scripts/makefile.linux

• # makefile for libpng.a and libpng16.so on Linux ELF with gcc
  # Copyright (C) 2018-2025 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=ar
  RANLIB=ranlib
  LN_SF=ln -sf
  CP=cp
  RM_F=rm -f
  
  # 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 \
            -DPNG_RISCV_RVV_OPT=0
  STDC = -pedantic-errors
  WARN = -Wall -Wextra -Wundef
  WARNMORE = -Wcast-align -Wconversion -Wshadow -Wpointer-arith -Wwrite-strings \
             -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes
  LOCAL_CPPFLAGS = $(NOHWOPT)
  CPPFLAGS = # -DPNG_DEBUG=5
  ALL_CPPFLAGS = $(LOCAL_CPPFLAGS) $(CPPFLAGS)
  LOCAL_CFLAGS = $(STDC) $(WARN) # $(WARNMORE)
  CFLAGS = -O3 -funroll-loops # -g
  ALL_CFLAGS = $(LOCAL_CFLAGS) $(CFLAGS)
  ARFLAGS = rc
  LDFLAGS = -L. -Wl,-rpath,. -lpng16 -lz -lm # -g
  LDFLAGS_A = 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 $(ALL_CPPFLAGS) $(ALL_CFLAGS) -o $@ $*.c
  
  .c.pic.o:
  	$(CC) -c $(ALL_CPPFLAGS) $(ALL_CFLAGS) -fPIC -o $@ $*.c
  
  all: libpng.a $(LIBSO) pngtest pngtest-static
  
  pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
  	$(CP) $(PNGLIBCONF_H_PREBUILT) $@
  
  libpng.a: $(OBJS)
  	$(AR) $(ARFLAGS) $@ $(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