无法在 fedora23 工作站上安装 cffi答案

【问题标题】：can't install cffi on fedora23 workstation无法在 fedora23 工作站上安装 cffi
【发布时间】：2016-04-05 21:47:43
【问题描述】：

我正在尝试使用 pip3 在 fedora23 工作站上安装 cffi。但我得到以下错误。

pip3 install cffi

Collecting cffi

  Using cached cffi-1.4.2.tar.gz
Complete output from command python setup.py egg_info:

Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
gcc: error: /usr/lib/rpm/redhat/redhat-hardened-cc1: No such file or directory
gcc: error: /usr/lib/rpm/redhat/redhat-hardened-cc1: No such file or directory

    No working compiler found, or bogus compiler options
    passed to the compiler from Python's distutils module.
    See the error messages above.
    (If they are about -mno-fused-madd and you are on OS/X 10.8,
    see http://stackoverflow.com/questions/22313407/ .)

----------------------------------------

命令“python setup.py egg_info”失败，在 /tmp/pip-build-yweqr7c9/cffi 中出现错误代码 1

我该怎么办？提前谢谢。

【问题讨论】：

全新安装。我还没有安装其他任何东西。
在运行 pip 之前确保您 dnf install libffi-devel。此外，您可能需要确保已安装 gcc。
感谢 @TomTromey 为我工作。
既然问题有答案，您可以将其发布为答案并将其标记为已接受。题主也可以。

标签： python fedora python-cffi libffi

【解决方案1】：

正如 Tom 在 cmets 中指出的那样，您必须先安装一些依赖项，然后才能编译 cffi。但是，在我的情况下，仅libffi-devel 是不够的，还需要将 redhat-hardened-cc1 作为redhat-rpm-config 的一部分。你可以安装它们

sudo dnf install libffi-devel redhat-rpm-config

现在您可以再次运行pip3 install cffi，它应该全部编译。

【讨论】：