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# makefile for libpng on Darwin / macOS
# Copyright (C) 2014, 2018-2025 Cosmin Truta
# Copyright (C) 2002, 2004, 2006, 2008, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 2001 Christoph Pfisterer
# derived from makefile.linux:
# Copyright (C) 1998, 1999 Greg Roelofs
# 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=$(LIBNAME).dylib
LIBSOMAJ=$(LIBNAME).$(PNGMAJ).dylib
# Utilities:
CC=cc
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. -lpng16 -lz # -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) -fno-common -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) -dynamiclib \
-current_version 16 -compatibility_version 16 \
-o $(LIBSOMAJ) \
$(OBJSDLL) -lz
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) $(LIBNAME).*dylib 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
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