我是C ++的新手，由于要求我们，我们都在使用代码块。我在10.10.5 OS X上使用它。现在我必须做一个使用allegro5库的项目，但我无法安装它！我花了很多时间尝试按照http://partitionseven.blogspot.com/2011/01/compiling-allegro-5-with-mac-os-x-snow.html之类的不同教程，但根本没有成功。 有没有办法让它发挥作用？
修改
我在指定clang工具时首先遇到问题 - 我的mac / Developer / usr / bin / clang上没有这样的目录。我只能在finder中找到usr / bin / clang，但文件夹usr是灰色的 - 这是否意味着什么？ 只有当我点击Xcode-＆gt;显示内容时，我才能找到这条路径/ Developer / usr / bin / clang。所以这是第一件事与教程不完全相同。我仍然可以运行CMAKE，但我得到这样的日志：
The C compiler identification is AppleClang 6.1.0.6020053
The CXX compiler identification is AppleClang 6.1.0.6020053
Check for working C compiler: /usr/bin/clang
Check for working C compiler: /usr/bin/clang -- works
Detecting C compiler ABI info
Detecting C compiler ABI info - done
Detecting C compile features
Detecting C compile features - done
Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works
Detecting CXX compiler ABI info
Detecting CXX compiler ABI info - done
Detecting CXX compile features
Detecting CXX compile features - done
Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)
Check if the system is big endian
Searching 16 bit integer
Looking for sys/types.h
Looking for sys/types.h - found
Looking for stdint.h
Looking for stdint.h - found
Looking for stddef.h
Looking for stddef.h - found
Check size of unsigned short
Check size of unsigned short - done
Using unsigned short
Check if the system is big endian - little endian
Looking for include file dirent.h
Looking for include file dirent.h - found
Looking for include file inttypes.h
Looking for include file inttypes.h - found
Looking for include files sys/types.h, linux/joystick.h
Looking for include files sys/types.h, linux/joystick.h - not found
Looking for include file stdbool.h
Looking for include file stdbool.h - found
Looking for include file stdint.h
Looking for include file stdint.h - found
Looking for include file sys/io.h
Looking for include file sys/io.h - not found
Looking for include file sys/stat.h
Looking for include file sys/stat.h - found
Looking for include file sys/time.h
Looking for include file sys/time.h - found
Looking for include file time.h
Looking for include file time.h - found
Looking for include file sys/utsname.h
Looking for include file sys/utsname.h - found
Looking for include file sys/types.h
Looking for include file sys/types.h - found
Looking for include file soundcard.h
Looking for include file soundcard.h - not found
Looking for include file sys/soundcard.h
Looking for include file sys/soundcard.h - not found
Looking for include file machine/soundcard.h
Looking for include file machine/soundcard.h - not found
Looking for include file linux/soundcard.h
Looking for include file linux/soundcard.h - not found
Looking for include file libkern/OSAtomic.h
Looking for include file libkern/OSAtomic.h - found
Looking for include file sys/inotify.h
Looking for include file sys/inotify.h - not found
Looking for include file sys/timerfd.h
Looking for include file sys/timerfd.h - not found
Looking for getexecname
Looking for getexecname - not found
Looking for mkstemp
Looking for mkstemp - found
Looking for mmap
Looking for mmap - found
Looking for mprotect
Looking for mprotect - found
Looking for sched_yield
Looking for sched_yield - found
Looking for sysconf
Looking for sysconf - found
Looking for fseeko
Looking for fseeko - found
Looking for ftello
Looking for ftello - found
Check size of _Bool
Check size of _Bool - done
Performing Test ALLEGRO_HAVE_PROCFS_ARGCV
Performing Test ALLEGRO_HAVE_PROCFS_ARGCV - Failed
Performing Test ALLEGRO_HAVE_SV_PROCFS_H
Performing Test ALLEGRO_HAVE_SV_PROCFS_H - Failed
Performing Test ALLEGRO_HAVE_VA_COPY
Performing Test ALLEGRO_HAVE_VA_COPY - Success
Check if constructors are supported - yes
Found OpenGL: /System/Library/Frameworks/OpenGL.framework
Looking for pthread.h
Looking for pthread.h - found
Looking for pthread_create
Looking for pthread_create - found
Found Threads: TRUE
Found OpenAL: /System/Library/Frameworks/OpenAL.framework
Found FLAC: /usr/local/include
Performing Test FLAC_COMPILES
Performing Test FLAC_COMPILES - Success
Could NOT find DUMB (missing: DUMB_INCLUDE_DIR DUMB_LIBRARY)
WARNING: libdumb not found, disabling support. <http://dumb.sourceforge.net/>
Found VORBIS: /usr/local/include
Performing Test VORBIS_COMPILES
Performing Test VORBIS_COMPILES - Success
Found Freetype: /usr/local/lib/libfreetype.dylib (found version "2.6.3")
Found ZLIB: /usr/lib/libz.dylib (found version "1.2.8")
Found PhysFS: /usr/local/lib/libphysfs.dylib
Found PHYSFS: /usr/local/lib/libphysfs.dylib
Performing Test PHYSFS_IMPLICIT_ZLIB
Performing Test PHYSFS_IMPLICIT_ZLIB - Success
Could NOT find LATEX (missing: LATEX_COMPILER)
Configuring done
CMake Warning (dev):
Policy CMP0042 is not set: MACOSX_RPATH is enabled by default. Run "cmake
--help-policy CMP0042" for policy details. Use the cmake_policy command to
set the policy and suppress this warning.
MACOSX_RPATH is not specified for the following targets:
allegro
allegro_acodec
allegro_audio
allegro_color
allegro_dialog
allegro_font
allegro_image
allegro_main
allegro_memfile
allegro_physfs
allegro_primitives
allegro_ttf
This warning is for project developers. Use -Wno-dev to suppress it.
Generating done
CMAke生成的文件是
MacBook-Air-ukasz:build lukasz$ ls
CMakeCache.txt cmake_install.cmake include
CMakeFiles demos lib
Makefile docs tests
addons examples
谢谢@MikeKinghan，看起来我更进了一步 - 我没有得到错误。但是我打开了代码块，粘贴了示例代码（教程中的代码），并且在编译时出现错误
g++ -c /Users/lukasz/Desktop/test_allegro/test.cpp -o /Users/lukasz/Desktop/test_allegro/test.o
g++ -o /Users/lukasz/Desktop/test_allegro/test /Users/lukasz/Desktop/test_allegro/test.o
Undefined symbols for architecture x86_64:
"_al_clear_to_color", referenced from:
__al_mangled_main in test.o
"_al_create_display", referenced from:
__al_mangled_main in test.o
"_al_destroy_display", referenced from:
__al_mangled_main in test.o
"_al_flip_display", referenced from:
__al_mangled_main in test.o
"_al_install_system", referenced from:
__al_mangled_main in test.o
"_al_map_rgb", referenced from:
__al_mangled_main in test.o
"_al_rest", referenced from:
__al_mangled_main in test.o
"_main", referenced from:
implicit entry/start for main executable
(maybe you meant: __al_mangled_main)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
修改
当我使用
从终端运行测试应用程序时gcc alleg5test.c -o alleg5test -L/usr/local/lib -lallegro -lallegro_main
./alleg5test
答案 0 :(得分：1)
由于SO限制，我无法回复，但有可能：您的Allegro库是为i386构建的，不包含x86_64架构。您可以在命令行上检查库，但除非您同时拥有i386和x86_64，否则它不会总是告诉您所拥有的库。你这样做：
file liballegro.a或file liballegro.dylib
如果它说了x86_64，那我错了。如果不是那可能是问题。然后你有两个选择：将Allegro构建为x86_64或将程序构建为i386。要将Allegro构建为x86_64和i386，请将以下内容添加到您的CMake命令中：
cmake .. -DCMAKE_OSX_ARCHITECTURES="x86_64;i386" ...
或者只是在cmake-gui中指定该变量。你可以通过删除它和分号来遗漏一个或那个。
现在使用特定的体系结构构建程序，如果您从命令行使用gcc（如您链接的教程），请使用-m开关。要为i386构建，请使用-m32并使用-m64为x86_64构建（或者您可以使用-arch i386 -arch x86_64我相信（不确定，现在不在Mac上）。所以你的命令是：
gcc -m64 ...其中......与以前相同。