https://bugs.llvm.org/show_bug.cgi?id=43049
Bug ID: 43049
Summary: Standalone libc++ build is broken
Product: libc++
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: mclow.li...@gmail.com
CC: llvm-bugs@lists.llvm.org, mclow.li...@gmail.com
https://libcxx.llvm.org/docs/BuildingLibcxx.html has a section that starts out:
> It is sometimes beneficial to build separately from the full LLVM build.
> An out-of-tree build would look like this:
And that no longer works.
If I do this (on Mac OS)
$ cmake -G Ninja -DLLVM_PATH=$LLVM/llvm -DLIBCXX_CXX_ABI=libcxxabi
-DLIBCXX_CXX_ABI_INCLUDE_PATHS=/usr/include $LIBCXX
that works, but then
$ ninja
$ ninja check-libcxx
"ninja: error: unknown target 'check-libcxx'"
Also, running individual tests via lit fails as well:
$ $LIT -sv --param "std=c++17" --param
"libcxx_site_config=$LLVM_BUILD/libcxx/test/lit.site.cfg"
--param=enable_warnings=true $LLVM/libcxx/test/std/utilities/time/
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