maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Issue a warning instead of fatal errors when checks for libatomic fail. 

This should fix PR26631, PR26622 and has the nice property that the addition
of the CheckLibcxxAtomic.cmake module acts as an NFC on the platforms of the
reporters (at least for the time being).

As these bug reports explain, CMake fails the atomic check because the
include headers might not exist in the host environment. We could
potentially point to the headers provided by libcxx itself.

llvm-svn: 260961
This commit is contained in:
Vasileios Kalintiris 2016-02-16 14:15:27 +00:00
parent 79944f20ea
commit 867a4e7b8b
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libcxx/cmake/Modules/CheckLibcxxAtomic.cmake
View File

@ -33,9 +33,9 @@ if(NOT LIBCXX_HAVE_CXX_ATOMICS_WITHOUT_LIB)
list(APPEND CMAKE_REQUIRED_LIBRARIES "atomic")
check_cxx_atomics(LIBCXX_HAVE_CXX_ATOMICS_WITH_LIB)
if (NOT LIBCXX_HAVE_CXX_ATOMICS_WITH_LIB)
message(FATAL_ERROR "Host compiler must support std::atomic!")
message(WARNING "Host compiler must support std::atomic!")
endif()
else()
message(FATAL_ERROR "Host compiler appears to require libatomic, but cannot find it.")
message(WARNING "Host compiler appears to require libatomic, but cannot find it.")
endif()
endif()