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Considering that pnglibconf is a whole mini-system for configuring and building libpng, it should be placed in its own dedicated subdirectory. Any future additions, including tests and documentation, should go into this subdirectory. One exception: pnglibconf.h.prebuilt is moved to the top-level source directory, where pnglibconf.h would be. This follows the organization pattern typically used with the "*.in" files, for example. All references to the pnglibconf artifacts, found in machine-readable code and in human-readable comments, are updated accordingly.
93 lines
3.5 KiB
Plaintext
93 lines
3.5 KiB
Plaintext
# makefile for libpng using emscripten
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# Copyright (C) 2000, 2014, 2019-2025 Cosmin Truta
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# Copyright (C) 2021 Kirk Roerig
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# Copyright (C) 2008, 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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# Location of the zlib library and include files
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ZLIBINC = ../zlib
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ZLIBLIB = ../zlib
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# Compiler, linker, lib and other tools
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CC = emcc
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LD = $(CC)
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AR = emar
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RANLIB = emranlib
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CP = cp
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RM_F = rm -f
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STDC = -pedantic-errors # -std=c99
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WARN = -Wall -Wextra -Wundef
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WARNMORE = -Wcast-align -Wconversion -Wshadow -Wpointer-arith -Wwrite-strings \
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-Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes
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LOCAL_CPPFLAGS =
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CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
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ALL_CPPFLAGS = $(LOCAL_CPPFLAGS) $(CPPFLAGS)
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LOCAL_CFLAGS = $(STDC) $(WARN) $(WARNMORE)
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CFLAGS = -O2
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ALL_CFLAGS = $(LOCAL_CFLAGS) $(CFLAGS)
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ARFLAGS = rc
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LDFLAGS = -L$(ZLIBLIB)
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PNGTEST_LDFLAGS = --preload-file=pngtest.png
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LIBS = -lz -lm
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# Pre-built configuration
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# See scripts/pnglibconf/pnglibconf.mak for more options
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PNGLIBCONF_H_PREBUILT = pnglibconf.h.prebuilt
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# File lists
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OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o pngread.o \
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pngrio.o pngrtran.o pngrutil.o pngset.o pngsimd.o \
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pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
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# Targets
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all: libpng.a pngtest
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pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
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$(CP) $(PNGLIBCONF_H_PREBUILT) $@
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.c.o:
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$(CC) -c $(ALL_CPPFLAGS) $(ALL_CFLAGS) -o $@ $*.c
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libpng.a: $(OBJS)
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$(AR) $(ARFLAGS) $@ $(OBJS)
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$(RANLIB) $@
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test: pngtest
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node ./pngtest
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pngtest: pngtest.o libpng.a
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$(LD) $(LDFLAGS) $(PNGTEST_LDFLAGS) -o $@ pngtest.o libpng.a $(LIBS)
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clean:
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$(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h
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$(RM_F) pngtest.data pngtest.wasm
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# TODO:
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# Use the compiler to generate dependency files (e.g. "$(CC) -MD") and
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# include those files here, for the benefit of the Make implementations
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# that support the GNU Make syntax extensions.
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png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngsimd.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h pngtarget.h
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pngtest.o: png.h pngconf.h pnglibconf.h
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