[cfe-dev] system search path for option -stdlib=libc++
frankrehwinkel at gmail.com
Fri Jan 31 07:08:17 PST 2014
I would like to compile and install llvm/clang/libcxx into a local
directory on Linux (Gentoo). I haven't found the right combination of
cmake -D flags to make the -stdlib=c++ option work.
The first part seems straightforward enough:
cmake -G Ninja \
But the system header search path used by clang++ when the libc++ stdlib is
used then is completely wrong. Looking through the source code, I stumbled
on the parameters DEFAULT_SYSROOT and gave that a try.
and that made the system header search path look good as far as finding the
libc++ headers, but now the plain old /usr/include directory is no longer
in the search path so /usr/include/features.h is not found.
Is building clang and libcxx on Linux and installing to a local directory
supported and if so, please, what did I overlook or not know?
(I built with gcc, version 4.7.3 as you may have surmised by the paths
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