when run from the command line (win7 cmd) gcc -print-search-dirs produces:
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/`
I understand the semi-colons (like PATH) but I'm not clear on the /../ as shown. Could someone explain?