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author | Eric Fiselier <eric@efcs.ca> | 2015-08-26 20:18:21 +0000 |
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committer | Eric Fiselier <eric@efcs.ca> | 2015-08-26 20:18:21 +0000 |
commit | d77135f8285d66d0f76974511c86fa0f9a8c0713 (patch) | |
tree | a936eff1c1ba8438899f9a394e9b3e1f0ac2af01 /libcxx/cmake | |
parent | 4b30e569be72f6dfcdf811c12eb34e2d4e4d4ce5 (diff) | |
download | bcm5719-llvm-d77135f8285d66d0f76974511c86fa0f9a8c0713.tar.gz bcm5719-llvm-d77135f8285d66d0f76974511c86fa0f9a8c0713.zip |
[libcxx] Remove installation rules on Darwin when it would overwrite the system installation.
Summary:
On Mac OS X overwriting `/usr/lib/libc++.dylib` can cause your computer to fail to boot. This patch tries to make it harder to do that accidentally.
If `CMAKE_SYSTEM_NAME` is `Darwin` and `CMAKE_INSTALL_PREFIX` is `/usr` don't generate installation rules unless the user explicitly provides `LIBCXX_OVERRIDE_DARWIN_INSTALL=ON`. Note that `CMAKE_INSTALL_PREFIX` is always absolute so we don't need to worry about things like `/usr/../usr`.
Reviewers: mclow.lists, beanz, jroelofs
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D12209
llvm-svn: 246070
Diffstat (limited to 'libcxx/cmake')
-rw-r--r-- | libcxx/cmake/Modules/HandleLibCXXABI.cmake | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/libcxx/cmake/Modules/HandleLibCXXABI.cmake b/libcxx/cmake/Modules/HandleLibCXXABI.cmake index 39cca9dd238..4587498dcb9 100644 --- a/libcxx/cmake/Modules/HandleLibCXXABI.cmake +++ b/libcxx/cmake/Modules/HandleLibCXXABI.cmake @@ -41,11 +41,13 @@ macro(setup_abi_lib abidefines abilib abifiles abidirs) file(COPY "${incpath}/${fpath}" DESTINATION "${CMAKE_BINARY_DIR}/include/${dstdir}" ) - install(FILES "${CMAKE_BINARY_DIR}/include/${fpath}" - DESTINATION include/c++/v1/${dstdir} - COMPONENT libcxx - PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ - ) + if (LIBCXX_INSTALL_HEADERS) + install(FILES "${CMAKE_BINARY_DIR}/include/${fpath}" + DESTINATION include/c++/v1/${dstdir} + COMPONENT libcxx + PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ + ) + endif() list(APPEND abilib_headers "${CMAKE_BINARY_DIR}/include/${fpath}") endif() endforeach() |