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| author | Brad King <brad.king@kitware.com> | 2023-07-27 15:01:48 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2023-07-27 15:07:21 (GMT) |
| commit | 78bbd585451752e7b23eafbfa1dc009fd5cda750 (patch) | |
| tree | e815d3a849a5c4f6dfa3eefac0411ab11861c68a /Source/Checks | |
| parent | 2d8aeaca07ecbcff6e5ac59f462fe99d656a3fce (diff) | |
| download | CMake-78bbd585451752e7b23eafbfa1dc009fd5cda750.zip CMake-78bbd585451752e7b23eafbfa1dc009fd5cda750.tar.gz CMake-78bbd585451752e7b23eafbfa1dc009fd5cda750.tar.bz2 | |
Source: Link libatomic when needed on Linux 32-bit ARM
Fixes: #25114
Diffstat (limited to 'Source/Checks')
| -rw-r--r-- | Source/Checks/cm_cxx_atomic.cxx | 6 | ||||
| -rw-r--r-- | Source/Checks/cm_cxx_atomic_builtin.cxx | 1 | ||||
| -rw-r--r-- | Source/Checks/cm_cxx_atomic_lib.cxx | 1 | ||||
| -rw-r--r-- | Source/Checks/cm_cxx_features.cmake | 11 |
4 files changed, 19 insertions, 0 deletions
diff --git a/Source/Checks/cm_cxx_atomic.cxx b/Source/Checks/cm_cxx_atomic.cxx new file mode 100644 index 0000000..098a7a7 --- /dev/null +++ b/Source/Checks/cm_cxx_atomic.cxx @@ -0,0 +1,6 @@ +#include <atomic> +int main() +{ + std::atomic<long long>(0).load(); + return 0; +} diff --git a/Source/Checks/cm_cxx_atomic_builtin.cxx b/Source/Checks/cm_cxx_atomic_builtin.cxx new file mode 100644 index 0000000..d284f6c --- /dev/null +++ b/Source/Checks/cm_cxx_atomic_builtin.cxx @@ -0,0 +1 @@ +#include "cm_cxx_atomic.cxx" diff --git a/Source/Checks/cm_cxx_atomic_lib.cxx b/Source/Checks/cm_cxx_atomic_lib.cxx new file mode 100644 index 0000000..d284f6c --- /dev/null +++ b/Source/Checks/cm_cxx_atomic_lib.cxx @@ -0,0 +1 @@ +#include "cm_cxx_atomic.cxx" diff --git a/Source/Checks/cm_cxx_features.cmake b/Source/Checks/cm_cxx_features.cmake index f5b7587..98d5eff 100644 --- a/Source/Checks/cm_cxx_features.cmake +++ b/Source/Checks/cm_cxx_features.cmake @@ -17,6 +17,7 @@ function(cm_check_cxx_feature name) try_run(CMake_RUN_CXX_${FEATURE} CMake_COMPILE_CXX_${FEATURE} ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_LIST_DIR}/cm_cxx_${name}.cxx + LINK_LIBRARIES ${cm_check_cxx_feature_LINK_LIBRARIES} CMAKE_FLAGS ${maybe_cxx_standard} OUTPUT_VARIABLE OUTPUT ) @@ -29,6 +30,7 @@ function(cm_check_cxx_feature name) try_compile(CMake_HAVE_CXX_${FEATURE} ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_LIST_DIR}/cm_cxx_${name}.cxx + LINK_LIBRARIES ${cm_check_cxx_feature_LINK_LIBRARIES} CMAKE_FLAGS ${maybe_cxx_standard} OUTPUT_VARIABLE OUTPUT ) @@ -93,3 +95,12 @@ if (NOT CMAKE_CXX_STANDARD LESS "17") else() set(CMake_HAVE_CXX_FILESYSTEM FALSE) endif() + +if(CMAKE_SYSTEM_NAME STREQUAL "Linux" AND CMAKE_SYSTEM_PROCESSOR MATCHES "armv7l|sparc") + cm_check_cxx_feature(atomic_builtin) + if(NOT CMake_HAVE_CXX_ATOMIC_BUILTIN) + set(cm_check_cxx_feature_LINK_LIBRARIES atomic) + cm_check_cxx_feature(atomic_lib) # defines CMake_HAVE_CXX_ATOMIC_LIB + unset(cm_check_cxx_feature_LINK_LIBRARIES) + endif() +endif() |