C++ 向 MinGW 添加额外的包含/lib 路径
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Add extra include/lib paths to MinGW
提问by delaccount992
I would like to add some extra include/lib directories besides the default ones for MinGW to search upon compilation. The reason for this is because the hard drive I currently have MinGW installed into is nearly full and so I had to install Qt into my second one instead. Thus, how can I have MinGW include the Qt files by default?
除了 MinGW 在编译时搜索的默认目录之外，我想添加一些额外的 include/lib 目录。原因是因为我目前安装 MinGW 的硬盘快满了，所以我不得不将 Qt 安装到我的第二个中。因此，如何让 MinGW 默认包含 Qt 文件？
回答by Piotr Dobrogost
You can set environment variables CPLUS_INCLUDE_PATHfor include directories and LIBRARY_PATHfor library directories. More information can be found in Environment Variables Affecting GCC
您可以CPLUS_INCLUDE_PATH为包含目录和LIBRARY_PATH库目录设置环境变量。更多信息可以在影响 GCC 的环境变量中找到
回答by ismail
Use -Idirective for extra includes and -Ldirective for extra library paths such as:
将-I指令用于额外的包含和-L指令用于额外的库路径，例如：
g++ [...] -I C:\qt\include -L C:\qt\lib
You can use multiple -Iand -Loptions.
您可以使用多个-I和-L选项。
