Question

从命令行运行时（win7 cmd）gcc -print-search-dirs生成：

install: C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/
programs: =C:/mingw64/bin/../libexec/gcc/x86_64-w64-mingw32/5.1.0/;C:/mingw64/bin/../libexec/gcc/;C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/bin/x86_64-w64-mingw32/5.1.0/;C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/bin/
libraries: =C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/;C:/mingw64/bin/../lib/gcc/;C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/lib/x86_64-w64-mingw32/5.1.0/;C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/lib/../lib/;C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/../../../x86_64-w64-mingw32/5.1.0/;C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/../../../../lib/;C:/mingw510/x86_64-510-posix-seh-rt_v4-rev0/mingw64/mingw/lib/x86_64-w64-mingw32/5.1.0/;C:/mingw510/x86_64-510-posix-seh-rt_v4-rev0/mingw64/mingw/lib/../lib/;C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/lib/;C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/../../../;C:/mingw510/x86_64-510-posix-seh-rt_v4-rev0/mingw64/mingw/lib/`

我理解分号（如PATH）但我在/../上并不清楚如图所示。有人可以解释一下吗？

Answer 1

它与任何路径规范中的..具有相同的含义，即父目录。例如，C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/5.1.0/对应C:/mingw64/lib/gcc/x86_64-w64-mingw32/5.1.0/。

gcc -print-search-dirs输出的格式

1 个答案: