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cmake: added libatomic check for boost/lockfree/queue.hpp

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The boost/lockfree/queue.hpp requires linking with the
libatomic on some platforms (e.g. s390x).

Fixes #410

Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
This commit is contained in:
Jaroslav Škarvada 2022-02-01 00:23:07 +01:00 committed by Aaron Rossetto
parent ef30ed1743
commit 3a249aa0b1
1 changed files with 31 additions and 0 deletions
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31
host/cmake/Modules/UHDAtomics.cmake
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@ -33,6 +33,18 @@ function(CHECK_WORKING_CXX_ATOMICS64 varname)
" ${varname})
endfunction(CHECK_WORKING_CXX_ATOMICS64)
# Note: If we reach this, we have already checked for the existence of Boost,
# and Boost.Lockfree is a header-only library so no linker options required.
function(CHECK_WORKING_CXX_BOOST_ATOMICS varname)
CHECK_CXX_SOURCE_COMPILES("
#include <boost/lockfree/queue.hpp>
boost::lockfree::queue<int> queue(1);
int main() {
return queue.is_lock_free();
}
" ${varname})
endfunction(CHECK_WORKING_CXX_BOOST_ATOMICS)
macro(CHECK_ATOMICS_LIB_REQUIRED required_var)
set(${required_var} FALSE)
if(MSVC)
@ -76,5 +88,24 @@ macro(CHECK_ATOMICS_LIB_REQUIRED required_var)
"Host compiler appears to require libatomic for 64-bit operations, but cannot find it.")
endif()
endif()
# Check whether boost requires atomic.
CHECK_WORKING_CXX_BOOST_ATOMICS(HAVE_CXX_BOOST_ATOMICS_WITHOUT_LIB)
# If not, check if the library exists, and atomics work with it.
if(NOT HAVE_CXX_BOOST_ATOMICS_WITHOUT_LIB)
check_library_exists(atomic __atomic_fetch_add_4 "" HAVE_LIBATOMIC)
if(HAVE_LIBATOMIC)
set(${required_var} TRUE)
set(CMAKE_REQUIRED_LIBRARIES "atomic")
CHECK_WORKING_CXX_BOOST_ATOMICS(HAVE_CXX_BOOST_ATOMICS_WITH_LIB)
unset(CMAKE_REQUIRED_LIBRARIES)
if (NOT HAVE_CXX_BOOST_ATOMICS_WITH_LIB)
message(FATAL_ERROR "Host compiler must support std::atomic!")
endif()
else()
message(
FATAL_ERROR
"Boost appears to require libatomic, but cannot find it.")
endif()
endif()
endif()
endmacro(CHECK_ATOMICS_LIB_REQUIRED)