升级到 OSX 10.11 后,使用 Homebrew 安装的库,编译时找不到 .h 文件 - V2EX
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holulu
V2EX    macOS

升级到 OSX 10.11 后,使用 Homebrew 安装的库,编译时找不到 .h 文件

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  •   holulu 2015-10-02 17:58:19 +08:00 4647 次点击
    这是一个创建于 3664 天前的主题,其中的信息可能已经有所发展或是发生改变。

    编译一个依赖 Homebrew 安装的库,之前还能用的,升级系统之后,编译同样的项目就报找不到 .h 文件了。

    clang -x c -v -E /dev/null 的结果是:

    Apple LLVM vrsion 7.0.0 (clang-700.0.72) Target: x86_64-apple-darwin15.0.0 Thread model: posix "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" -cc1 -triple x86_64-apple-macosx10.11.0 -Wdeprecated-objc-isa-usage -Werror=deprecated-objc-isa-usage -E -disable-free -disable-llvm-verifier -main-file-name null -mrelocation-model pic -pic-level 2 -mthread-model posix -mdisable-fp-elim -masm-verbose -munwind-tables -target-cpu core2 -target-linker-version 253.2 -v -dwarf-column-info -resource-dir /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/7.0.0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -fdebug-compilation-dir /usr/local -ferror-limit 19 -fmessage-length 114 -stack-protector 1 -mstackrealign -fblocks -fobjc-runtime=macosx-10.11.0 -fencode-extended-block-signature -fmax-type-align=16 -fdiagnostics-show-option -fcolor-diagnostics -o - -x c /dev/null clang -cc1 version 7.0.0 based upon LLVM 3.7.0svn default target x86_64-apple-darwin15.0.0 ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/local/include" ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/Library/Frameworks" #include "..." search starts here: #include <...> search starts here: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/7.0.0/include /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/System/Library/Frameworks (framework directory) 

    居然没有了 /usr/local/include
    brew doctor 也不行。

    解决这个问题的正确姿势是怎么样的?

    9 条回复    2015-10-03 19:51:38 +08:00
    regeditms
        1
    regeditms  
       2015-10-02 18:07:51 +08:00
    哦 ,一遍编译查找确实没有 /usr/local/include 你需要添加查找路径
    holulu
        2
    holulu  
    OP
       2015-10-02 18:19:37 +08:00
    @regeditms .h 通过 export C_INCLUDE_PATH="..." 可以解决,但找不到库,通过 export DYLD_LIBRARY_PATH="..." 不行。
    是不是环境变量错了?
    regeditms
        3
    regeditms  
       2015-10-02 18:21:51 +08:00
    一般情况下没特殊性 头文件就用 CPATH ,动态库 添加到 DYLD_LIBRARY_PATH 。
    regeditms
        4
    regeditms  
       2015-10-02 18:22:53 +08:00
    继续上一条,你添加动态库路径 你电脑 csrutil disable 了吗?如果没有的话 是不允许 添加外部动态库路径的。
    holulu
        5
    holulu  
    OP
       2015-10-02 20:38:18 +08:00
    @regeditms csrutil disable 了,还是找不到
    holulu
        6
    holulu  
    OP
       2015-10-03 07:17:10 +08:00
    无聊地 `export LIBRARY_PATH=/usr/local/lib` 就解决了。
    holulu
        7
    holulu  
    OP
       2015-10-03 09:18:14 +08:00
    @regeditms 不用关 SIP ,只是环境变量弄错了。
    regeditms
        8
    regeditms  
       2015-10-03 19:44:06 +08:00
    @holulu 最后发现是什么问题?
    holulu
        9
    holulu  
    OP
       2015-10-03 19:51:38 +08:00
    @regeditms 环境变量是 `LIBRARY_PATH` 而不是 `DYLD_LIBRARY_PATH`
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