[Driver] Gnu.cpp: remove unneeded -L detection for libc++
authorFangrui Song <i@maskray.me>
Sun, 21 Mar 2021 01:56:40 +0000 (18:56 -0700)
committerFangrui Song <i@maskray.me>
Sun, 21 Mar 2021 01:56:40 +0000 (18:56 -0700)
commit775a294820caefdce4e60603eaac0a071dd72765
tree9eaa381a5bb6d66f886a8ddf8e4392120a97e73a
parent06d6b1471eb809aaad0681e1eb88727ac8225d47
[Driver] Gnu.cpp: remove unneeded -L detection for libc++

If clang is installed in the system, the other -L suffice;
otherwise $ccc_install_dir/../lib below suffices.
clang/lib/Driver/ToolChains/Linux.cpp