Compilers: Ignore -print-sysroot prefix when it is '/' (!5066) · Merge requests · CMake / CMake

Brad King requested to merge brad.king/cmake:sysroot-prefix into master Jul 27, 2020

Since !4585 (merged) we prepend the compiler's sysroot to CMAKE_SYSTEM_PREFIX_PATH. This does not make sense when the prefix is just /, such as on Ubuntu 16.04's system compiler.

Fixes: #21019 (closed)
Backport: release

Compilers: Ignore -print-sysroot prefix when it is '/'

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