我能够使用给定的makefile为FreeImage创建.a文件（静态库），但是我需要创建的是.dylib文件。
我需要在给定的Makefile中进行哪些更改？我已经尝试取消注释“＃STATIC AND DYNAMIC 32和64 BIT”下的部分，但cp：* .dylib似乎失败，并出现“无此文件或目录”错误。
Makefile.osx的内容：
# -*- Makefile -*-
# Mac OSX makefile for FreeImage
# This file can be generated by ./gensrclist.sh
include Makefile.srcs
# Find SDK path via xcode-select, backwards compatible with Xcode vers < 4.5
MACOSX_SYSROOT = $(shell xcrun --show-sdk-path)
# Specify deployement target here
MACOSX_DEPLOYMENT_TARGET = 10.11
# General configuration variables:
CC_I386 = $(shell xcrun -find clang)
CC_X86_64 = $(shell xcrun -find clang)
CPP_I386 = $(shell xcrun -find clang++)
CPP_X86_64 = $(shell xcrun -find clang++)
MACOSX_DEPLOY = -mmacosx-version-min=$(MACOSX_DEPLOYMENT_TARGET)
COMPILERFLAGS = -Os -fexceptions -fvisibility=hidden -DNO_LCMS -D__ANSI__
COMPILERFLAGS_I386 = -arch i386
COMPILERFLAGS_X86_64 = -arch x86_64
COMPILERPPFLAGS = -Wno-ctor-dtor-privacy -D__ANSI__ -std=c++11 -stdlib=libc++ -Wc++11-narrowing
INCLUDE +=
INCLUDE_I386 = -isysroot $(MACOSX_SYSROOT)
INCLUDE_X86_64 = -isysroot $(MACOSX_SYSROOT)
CFLAGS_I386 = $(COMPILERFLAGS) $(COMPILERFLAGS_I386) $(INCLUDE) $(INCLUDE_I386) $(MACOSX_DEPLOY)
CFLAGS_X86_64 = $(COMPILERFLAGS) $(COMPILERFLAGS_X86_64) $(INCLUDE) $(INCLUDE_X86_64) $(MACOSX_DEPLOY)
CPPFLAGS_I386 = $(COMPILERPPFLAGS) $(CFLAGS_I386)
CPPFLAGS_X86_64 = $(COMPILERPPFLAGS) $(CFLAGS_X86_64)
LIBRARIES_I386 = $(MACOSX_DEPLOY) -Wl,-syslibroot $(MACOSX_SYSROOT)
LIBRARIES_X86_64 = $(MACOSX_DEPLOY) -Wl,-syslibroot $(MACOSX_SYSROOT)
LIBTOOL = libtool
LIPO = lipo
TARGET = freeimage
STATICLIB = lib$(TARGET).a
SHAREDLIB = lib$(TARGET)-$(VER_MAJOR).$(VER_MINOR).dylib
LIBNAME = lib$(TARGET).$(VER_MAJOR).dylib
HEADER = Source/FreeImage.h
.SUFFIXES: .o-i386 .o-x86_64
MODULES_I386 = $(SRCS:.c=.o-i386)
MODULES_X86_64 = $(SRCS:.c=.o-x86_64)
MODULES_I386 := $(MODULES_I386:.cpp=.o-i386)
MODULES_X86_64 := $(MODULES_X86_64:.cpp=.o-x86_64)
PREFIX = /usr/local
INSTALLDIR = $(PREFIX)/lib
INCDIR = $(PREFIX)/include
default: all
all: dist
# ONLY STATIC AND 64 BIT // START ---
dist: FreeImage
cp *.a Dist
cp Source/FreeImage.h Dist
FreeImage: $(STATICLIB)
$(STATICLIB): $(STATICLIB)-x86_64
cp -p $(STATICLIB)-x86_64 $(STATICLIB)
# --- END
# STATIC AND DYNAMIC 32 and 64 BIT // START ---
#dist: FreeImage
# cp *.a Dist
# cp *.dylib Dist
# cp Source/FreeImage.h Dist
# FreeImage: $(STATICLIB) $(SHAREDLIB )
#$(STATICLIB): $(STATICLIB)-i386 $(STATICLIB)-x86_64
# $(LIPO) -create $(STATICLIB)-i386 $(STATICLIB)-x86_64 -output $(STATICLIB)
# --- END
$(STATICLIB)-i386: $(MODULES_I386)
$(LIBTOOL) -arch_only i386 -o $@ $(MODULES_I386)
$(STATICLIB)-x86_64: $(MODULES_X86_64)
$(LIBTOOL) -arch_only x86_64 -o $@ $(MODULES_X86_64)
$(SHAREDLIB): $(SHAREDLIB)-i386 $(SHAREDLIB)-x86_64
$(LIPO) -create $(SHAREDLIB)-i386 $(SHAREDLIB)-x86_64 -output $(SHAREDLIB)
$(SHAREDLIB)-i386: $(MODULES_I386)
$(CPP_I386) -arch i386 -dynamiclib $(LIBRARIES_I386) -o $@ $(MODULES_I386)
$(SHAREDLIB)-x86_64: $(MODULES_X86_64)
$(CPP_X86_64) -arch x86_64 -dynamiclib $(LIBRARIES_X86_64) -o $@ $(MODULES_X86_64)
.c.o-i386:
$(CC_I386) $(CFLAGS_I386) -c $< -o $@
.c.o-x86_64:
$(CC_X86_64) $(CFLAGS_X86_64) -c $< -o $@
.cpp.o-i386:
$(CPP_I386) $(CPPFLAGS_I386) -c $< -o $@
.cpp.o-x86_64:
$(CPP_X86_64) $(CPPFLAGS_X86_64) -c $< -o $@
install:
install -d -m 755 -o root -g wheel $(INCDIR) $(INSTALLDIR)
install -m 644 -o root -g wheel $(HEADER) $(INCDIR)
install -m 644 -o root -g wheel $(SHAREDLIB) $(STATICLIB) $(INSTALLDIR)
ranlib -sf $(INSTALLDIR)/$(STATICLIB)
ln -sf $(SHAREDLIB) $(INSTALLDIR)/$(LIBNAME)
clean:
rm -f core Dist/*.* u2dtmp* $(MODULES_I386) $(MODULES_X86_64) $(STATICLIB) $(STATICLIB)-i386 $(SHAREDLIB) $(SHAREDLIB)-i386 $(SHAREDLIB)-x86_64