diff options
Diffstat (limited to 'dev-libs/rocksdb/files/rocksdb-6.17.3-libatomic.patch')
| -rw-r--r-- | dev-libs/rocksdb/files/rocksdb-6.17.3-libatomic.patch | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/dev-libs/rocksdb/files/rocksdb-6.17.3-libatomic.patch b/dev-libs/rocksdb/files/rocksdb-6.17.3-libatomic.patch new file mode 100644 index 000000000000..56cc674d09a4 --- /dev/null +++ b/dev-libs/rocksdb/files/rocksdb-6.17.3-libatomic.patch @@ -0,0 +1,71 @@ +Fixes check for atomics. + +The upstream currently does not have checks for atomics in v6.17.3. +However, since v6.22.1, rocksdb includes checks similar/identical to +files/rocksdb-6.14.6-libatomic.patch, which is superseded by this new patch. +See: https://github.com/facebook/rocksdb/commit/47b424f4bd51078591e674ff936de5a270530ce2 +Once the upstream adopts new methods for checking, this patch may be removed after testing. + +https://bugs.gentoo.org/834855 + +--- a/CMakeLists.txt ++++ b/CMakeLists.txt +@@ -289,6 +289,7 @@ else() + endif() + + include(CheckCXXSourceCompiles) ++set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS}) + if(NOT MSVC) + set(CMAKE_REQUIRED_FLAGS "-msse4.2 -mpclmul") + endif() +@@ -305,7 +306,6 @@ int main() { + auto d = _mm_cvtsi128_si64(c); + } + " HAVE_SSE42) +-unset(CMAKE_REQUIRED_FLAGS) + if(HAVE_SSE42) + add_definitions(-DHAVE_SSE42) + add_definitions(-DHAVE_PCLMUL) +@@ -313,6 +313,37 @@ elseif(FORCE_SSE42) + message(FATAL_ERROR "FORCE_SSE42=ON but unable to compile with SSE4.2 enabled") + endif() + ++# Check if -latomic is required or not ++if (NOT MSVC) ++ set(CMAKE_REQUIRED_FLAGS "--std=c++11") ++ set(ATOMIC_TEST_SOURCE " ++ #include <atomic> ++ std::atomic<int> x; ++ std::atomic<short> y; ++ std::atomic<char> z; ++ std::atomic<long long> w; ++ int main() { ++ ++z; ++ ++y; ++ ++w; ++ return ++x; ++ }") ++ CHECK_CXX_SOURCE_COMPILES("${ATOMIC_TEST_SOURCE}" BUILTIN_ATOMIC) ++ if (NOT BUILTIN_ATOMIC) ++ set(CMAKE_REQUIRED_LIBRARIES atomic) ++ CHECK_CXX_SOURCE_COMPILES("${ATOMIC_TEST_SOURCE}" ATOMICS_REQUIRE_LIBATOMIC) ++ unset(CMAKE_REQUIRED_LIBRARIES) ++ if (ATOMICS_REQUIRE_LIBATOMIC) ++ list(APPEND THIRDPARTY_LIBS atomic) ++ else() ++ message(FATAL_ERROR "Host compiler must support std::atomic!") ++ endif() ++ endif() ++endif() ++ ++# Reset the required flags ++set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS}) ++ + CHECK_CXX_SOURCE_COMPILES(" + #if defined(_MSC_VER) && !defined(__thread) + #define __thread __declspec(thread) +@@ -1354,3 +1385,4 @@ option(WITH_EXAMPLES "build with examples" OFF) + if(WITH_EXAMPLES) + add_subdirectory(examples) + endif() ++ |