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我想lablgtk在我的 Mac 上安装以使用一些需要它的软件。我尝试安装它，opam install lablgtk但make world出现此错误：

=> This package requires gtk+ 2.0 development packages installed on your system
=> To solve pkg-config issues, you may need to do
   'export PKG_CONFIG_PATH=/opt/X11/lib/pkgconfig' and retry

我尝试使用opam depext -i lablgtk，但它发现 Gtk

Warning: gtk+ 2.24.32_2 is already installed and up-to-date
To reinstall 2.24.32_2, run `brew reinstall gtk+`

我做了导出并尝试过eval 'opam config env'，但我一次又一次地遇到同样的错误。我安装了 Gtk+ 并使用了很多我在互联网上找到的 pkg 导出，但我无法解决这个问题。任何人都可以帮助我吗？

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1 回答 1

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For my case, it was that somehow pkg-config was broke so that it didn't have a link to libffi.pc which is required when the ./configure file building lablgtx package uses pkg-config to locate the installed gtx.h. Hence, it was fixed for my case by

export PKG_CONFIG_PATH="/usr/local/opt/libffi/lib/pkgconfig"

于 2019-05-10T10:35:45.170 回答