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| author | Eric Fiselier <eric@efcs.ca> | 2017-01-02 21:58:06 +0000 |
|---|---|---|
| committer | Eric Fiselier <eric@efcs.ca> | 2017-01-02 21:58:06 +0000 |
| commit | ea38cde827cdb83134adb7eade860a9b77a486b6 (patch) | |
| tree | d153d0f0e3141f6a0722defcd5e47a3698a1e47c /cmake | |
| parent | 766e557e5aba9a26c63ca89bd8d7384a60b20c4c (diff) | |
| download | external_libcxx-ea38cde827cdb83134adb7eade860a9b77a486b6.tar.gz external_libcxx-ea38cde827cdb83134adb7eade860a9b77a486b6.tar.bz2 external_libcxx-ea38cde827cdb83134adb7eade860a9b77a486b6.zip | |
Fix configuring and building libc++ w/o an ABI library.
Typically libc++ uses libc++abi or libcxxrt to provide the ABI and runtime bits
of the C++ STL. However we also support building w/o an ABI library entirely.
This patch fixes building libc++ w/o an ABI library (and incorporates the
`~type_info()` fix in D28211).
The main changes in this patch are:
1) Add `-DLIBCXX_CXX_ABI=default` instead of using the empty string to mean "default".
2) Fix CMake bits which treated "none" as "default" on OS X.
3) Teach the source files to respect `-D_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY`.
4) Define ~type_info() when _LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY is defined.
Unfortunately this patch doesn't help clean up the macro mess that we use to
configure for different ABI libraries.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@290839 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/Modules/HandleLibCXXABI.cmake | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/cmake/Modules/HandleLibCXXABI.cmake b/cmake/Modules/HandleLibCXXABI.cmake index 39f2aa575..60f2ca6ac 100644 --- a/cmake/Modules/HandleLibCXXABI.cmake +++ b/cmake/Modules/HandleLibCXXABI.cmake @@ -102,7 +102,11 @@ elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxrt") setup_abi_lib("-DLIBCXXRT" "cxxrt" "cxxabi.h;unwind.h;unwind-arm.h;unwind-itanium.h" "" ) -elseif (NOT "${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "none") +elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "none") + list(APPEND LIBCXX_COMPILE_FLAGS "-D_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY") +elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "default") + # Nothing TODO +else() message(FATAL_ERROR "Currently libstdc++, libsupc++, libcxxabi, libcxxrt and none are " "supported for c++ abi." |