无法安装 gevent OSX 10.11答案

【问题标题】：Can't install gevent OSX 10.11无法安装 gevent OSX 10.11
【发布时间】：2015-09-05 19:58:04
【问题描述】：

尝试在 OSX 10.11 最新公开测试版上使用 Homebrew 安装 gevent。运行安装时，输出如下错误（对不起，代码墙很大，不知道错误在哪里）

    clang -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I /opt/local/include -L /opt/local/lib -U__llvm__ -DLIBEV_EMBED=1 -DEV_COMMON= -DEV_CLEANUP_ENABLE=0 -DEV_EMBED_ENABLE=0 -DEV_PERIODIC_ENABLE=0 -Ibuild/temp.macosx-10.11-x86_64-2.7/libev -Ilibev -I/usr/local/include -I/usr/local/opt/openssl/include -I/usr/local/opt/sqlite/include -I/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c gevent/gevent.core.c -o build/temp.macosx-10.11-x86_64-2.7/gevent/gevent.core.o
  clang: warning: argument unused during compilation: '-L/opt/local/lib'
  In file included from gevent/gevent.core.c:249:
  In file included from gevent/libev.h:2:
  libev/ev.c:483:48: warning: '/*' within block comment [-Wcomment]
  /*#define MIN_INTERVAL  0.00000095367431640625 /* 1/2**20, good till 2200 */
                                                 ^
  libev/ev.c:1029:42: error: '_Noreturn' keyword must precede function declarator
    ecb_inline void ecb_unreachable (void) ecb_noreturn;
                                           ^~~~~~~~~~~~
    _Noreturn
  libev/ev.c:832:26: note: expanded from macro 'ecb_noreturn'
    #define ecb_noreturn   _Noreturn
                           ^
  libev/ev.c:1625:31: warning: 'extern' variable has an initializer [-Wextern-initializer]
    EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
                                ^
  libev/ev.c:1796:7: warning: unused variable 'ocur_' [-Wunused-variable]
        array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
        ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  libev/ev.c:1807:3: warning: unused variable 'ocur_' [-Wunused-variable]
    array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
    ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  libev/ev.c:1934:7: warning: unused variable 'ocur_' [-Wunused-variable]
        array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
        ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  In file included from gevent/gevent.core.c:249:
  In file included from gevent/libev.h:2:
  In file included from libev/ev.c:2484:
  libev/ev_kqueue.c:50:3: warning: unused variable 'ocur_' [-Wunused-variable]
    array_needsize (struct kevent, kqueue_changes, kqueue_changemax, kqueue_changecnt, EMPTY2);
    ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  In file included from gevent/gevent.core.c:249:
  In file included from gevent/libev.h:2:
  In file included from libev/ev.c:2490:
  libev/ev_poll.c:66:7: warning: unused variable 'ocur_' [-Wunused-variable]
        array_needsize (struct pollfd, polls, pollmax, pollcnt, EMPTY2);
        ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  libev/ev.c:3648:34: warning: '&' within '|' [-Wbitwise-op-parentheses]
    fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
                         ~~~~~~~~~~^~~~~~~~~~~~~ ~
  libev/ev.c:3648:34: note: place parentheses around the '&' expression to silence this warning
    fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
                                   ^
                         (                      )
  libev/ev.c:3687:3: warning: unused variable 'ocur_' [-Wunused-variable]
    array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
    ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  libev/ev.c:4367:5: warning: unused variable 'ocur_' [-Wunused-variable]
      array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
      ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  libev/ev.c:4407:3: warning: unused variable 'ocur_' [-Wunused-variable]
    array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
    ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  libev/ev.c:4445:3: warning: unused variable 'ocur_' [-Wunused-variable]
    array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
    ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  libev/ev.c:4592:3: warning: unused variable 'ocur_' [-Wunused-variable]
    array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
    ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  libev/ev.c:4675:3: warning: unused variable 'ocur_' [-Wunused-variable]
    array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
    ^
  libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
        int ecb_unused ocur_ = (cur);                                     \
                       ^
  14 warnings and 1 error generated.
  error: command 'clang' failed with exit status 1

  ----------------------------------------
  Failed building wheel for gevent
Failed to build gevent
Installing collected packages: gevent
  Running setup.py install for gevent
    Complete output from command /usr/local/opt/python/bin/python2.7 -c "import setuptools, tokenize;__file__='/private/var/folders/q8/1c24n_wj6kzc6kgl7629pwyh0000gn/T/pip-build-3zCPVx/gevent/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/q8/1c24n_wj6kzc6kgl7629pwyh0000gn/T/pip-9VpZCX-record/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_py
    running build_ext
    building 'gevent.core' extension
    clang -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I /opt/local/include -L /opt/local/lib -U__llvm__ -DLIBEV_EMBED=1 -DEV_COMMON= -DEV_CLEANUP_ENABLE=0 -DEV_EMBED_ENABLE=0 -DEV_PERIODIC_ENABLE=0 -Ibuild/temp.macosx-10.11-x86_64-2.7/libev -Ilibev -I/usr/local/include -I/usr/local/opt/openssl/include -I/usr/local/opt/sqlite/include -I/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c gevent/gevent.core.c -o build/temp.macosx-10.11-x86_64-2.7/gevent/gevent.core.o
    clang: warning: argument unused during compilation: '-L/opt/local/lib'
    In file included from gevent/gevent.core.c:249:
    In file included from gevent/libev.h:2:
    libev/ev.c:483:48: warning: '/*' within block comment [-Wcomment]
    /*#define MIN_INTERVAL  0.00000095367431640625 /* 1/2**20, good till 2200 */
                                                   ^
    libev/ev.c:1029:42: error: '_Noreturn' keyword must precede function declarator
      ecb_inline void ecb_unreachable (void) ecb_noreturn;
                                             ^~~~~~~~~~~~
      _Noreturn
    libev/ev.c:832:26: note: expanded from macro 'ecb_noreturn'
      #define ecb_noreturn   _Noreturn
                             ^
    libev/ev.c:1625:31: warning: 'extern' variable has an initializer [-Wextern-initializer]
      EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
                                  ^
    libev/ev.c:1796:7: warning: unused variable 'ocur_' [-Wunused-variable]
          array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
          ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    libev/ev.c:1807:3: warning: unused variable 'ocur_' [-Wunused-variable]
      array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
      ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    libev/ev.c:1934:7: warning: unused variable 'ocur_' [-Wunused-variable]
          array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
          ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    In file included from gevent/gevent.core.c:249:
    In file included from gevent/libev.h:2:
    In file included from libev/ev.c:2484:
    libev/ev_kqueue.c:50:3: warning: unused variable 'ocur_' [-Wunused-variable]
      array_needsize (struct kevent, kqueue_changes, kqueue_changemax, kqueue_changecnt, EMPTY2);
      ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    In file included from gevent/gevent.core.c:249:
    In file included from gevent/libev.h:2:
    In file included from libev/ev.c:2490:
    libev/ev_poll.c:66:7: warning: unused variable 'ocur_' [-Wunused-variable]
          array_needsize (struct pollfd, polls, pollmax, pollcnt, EMPTY2);
          ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    libev/ev.c:3648:34: warning: '&' within '|' [-Wbitwise-op-parentheses]
      fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
                           ~~~~~~~~~~^~~~~~~~~~~~~ ~
    libev/ev.c:3648:34: note: place parentheses around the '&' expression to silence this warning
      fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
                                     ^
                           (                      )
    libev/ev.c:3687:3: warning: unused variable 'ocur_' [-Wunused-variable]
      array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
      ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    libev/ev.c:4367:5: warning: unused variable 'ocur_' [-Wunused-variable]
        array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
        ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    libev/ev.c:4407:3: warning: unused variable 'ocur_' [-Wunused-variable]
      array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
      ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    libev/ev.c:4445:3: warning: unused variable 'ocur_' [-Wunused-variable]
      array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
      ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    libev/ev.c:4592:3: warning: unused variable 'ocur_' [-Wunused-variable]
      array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
      ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    libev/ev.c:4675:3: warning: unused variable 'ocur_' [-Wunused-variable]
      array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
      ^
    libev/ev.c:1758:22: note: expanded from macro 'array_needsize'
          int ecb_unused ocur_ = (cur);                                     \
                         ^
    14 warnings and 1 error generated.
    error: command 'clang' failed with exit status 1

    ----------------------------------------
Command "/usr/local/opt/python/bin/python2.7 -c "import setuptools, tokenize;__file__='/private/var/folders/q8/1c24n_wj6kzc6kgl7629pwyh0000gn/T/pip-build-3zCPVx/gevent/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/q8/1c24n_wj6kzc6kgl7629pwyh0000gn/T/pip-9VpZCX-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/q8/1c24n_wj6kzc6kgl7629pwyh0000gn/T/pip-build-3zCPVx/gevent

【问题讨论】：

标签： macos

【解决方案1】：

使用CFLAGS='-std=c99' pip install gevent 解决此问题。

在 OS X 10.11 上，clang 使用 c11 作为默认值，因此只需将其转回 c99。

【讨论】：

我有 10.10.5，无法安装 gevent，这解决了我的问题。
天哪，这让我在 OSX 10.10.5 上发疯了，同样的问题，将 CFLAGS 设置为 root 并安装 gevent 成功了——谢谢！
谢谢，我只需要像 CFLAGS='-std=c99' pip install gevent==1.1rc1 那样明确地将版本添加到 gevent。
请。最好回答这个。然后再一次。然后再说一遍。

【解决方案2】：

我在我的 OSX 10.10.5 上遇到了同样的问题，尝试安装 flask-socketio，它具有 gevent 作为依赖项，但是：

sudo CFLAGS='-std=c99' pip install flask-socketio

给我

Successfully installed flask-socketio-0.6.0 gevent-1.0.2 gevent-socketio-0.3.6 gevent-websocket-0.9.5

所以，tonicbupt 的回答也适用于此。

【讨论】：

在 10.11 上，我必须使用 sudo CFLAGS='-std=c99' pip install flask-socketio --no-use-wheel 才能让它工作。

【解决方案3】：

我浪费了两天的时间和下面的Mac用户解决方案...

pip install gevent==1.1b5

解决方案：gevent fails to install in a python virtual environment on OS X Capitan

【讨论】：

虽然此链接可能会回答问题，但最好在此处包含答案的基本部分并提供链接以供参考。如果链接页面发生更改，仅链接答案可能会失效。 - From Review
感谢您的评论。只是`pip install gevent==1.1b5`解决了我的问题。我不认为这是一个“仅链接”的答案。

【解决方案4】：

在 Mac OS X El Capitan 上，我必须做前面答案中提到的两件事，设置 CFLAGS 变量并降级 gevent，但我必须使用 1.0 版来清除编译器错误。

CFLAGS='-std=c99' pip install gevent==1.0

【讨论】：

1.0.2 在 el Capitan 上是可以的，上面有 CFLAGS，但是 C 编译器确实会产生很多警告

【解决方案5】：

如其PyPI instruction 中所述，

pip install --pre gevent

应安装适用于 OS X 10.11 的候选发布版本（1.1rc4，截至 2016 年 2 月 22 日）。

【讨论】：

【解决方案6】：

此时gevent 1.1.0 final以OS X二进制轮的形式发布，pip会默认安装。用于 OS X 的 gevent 1.0.2 的二进制轮也可用于那些无法升级到较新版本的用户。这两个都已经过测试，可以在 OS X 10.11 上安装 Apple 分发的 Python 2.6 和 2.7，以及从 python.org 下载的 2.7 Python。（如果您在安装二进制轮子时遇到问题，您可能需要更新您的 pip 版本。）

因此，除非您必须从源代码编译 1.0.2，否则不再需要设置任何特殊的 CFLAGS。（1.1.0没有这个问题。）

请注意，轮子是为 Python 的“窄”unicode 构建分发的，因此如果您使用“宽”构建，则需要从源代码编译。在这种情况下，gevent 1.0.2（但不是 1.1.0）需要设置 CFLAGS="--std=c99"。

【讨论】：