带有冒号的-g:libevent.a的gcc库选项 [英] gcc library option with a colon, -l:libevent.a

问题描述

我正在查看一个Makefile.找到了这段有趣的代码LIBS = -l:libevent.a.正在翻阅gcc文档，但未找到任何相关内容.有谁知道这意味着什么?

I'm going through a Makefile. Found this interesting bit of code, LIBS = -l:libevent.a. Was digging through gcc documentation but didn't find anything relevant. Does anyone know what it means?

推荐答案

它指示链接程序查找并链接名称完全为libevent.a的库， 在指定的(-Ldir)或默认链接程序搜索目录中，而不是 -lfoo指示链接程序查找并链接libfoo.so(共享库)的通常约定 或libfoo.a(静态库)，如果在同一个搜索目录中都找到libfoo.so，则首选libfoo.so.

It instructs the linker to find and link a library with the exact name libevent.a, in the specified (-Ldir) or default linker search directories, as opposed to the usual convention whereby -lfoo instructs the linker to find and link either libfoo.so (shared library) or libfoo.a (static library), preferring libfoo.so if both are found in the same search directory.

请参见链接器手册中的-lnamespec | --library=namespec文档

See the documentation of -lnamespec | --library=namespec in the linker manual

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