cmake LIBCXX_HAS_PTHREAD_API examples

Lewuathe/mlir-hello thirdparty/llvm-project/libcxx/CMakeLists.txt :296 

option(LIBCXX_HAS_PTHREAD_API "Ignore auto-detection and force use of pthread API" OFF)

Lewuathe/mlir-hello thirdparty/llvm-project/libcxx/CMakeLists.txt :334 

message(FATAL_ERROR "LIBCXX_HAS_PTHREAD_API can only be set to ON"
                        " when LIBCXX_ENABLE_THREADS is also set to ON.")

Lewuathe/mlir-hello thirdparty/llvm-project/libcxx/CMakeLists.txt :350 

message(FATAL_ERROR "The options LIBCXX_HAS_EXTERNAL_THREAD_API"
                        " and LIBCXX_HAS_PTHREAD_API cannot be both"
                        " set to ON at the same time.")

Lewuathe/mlir-hello thirdparty/llvm-project/libcxx/CMakeLists.txt :363 

message(FATAL_ERROR "The options LIBCXX_HAS_PTHREAD_API"
                        " and LIBCXX_HAS_WIN32_THREAD_API cannot be both"
                        " set to ON at the same time.")

PlatONnetwork/pWASM libc++/libcxx/CMakeLists.txt :201 

option(LIBCXX_HAS_PTHREAD_API "Ignore auto-detection and force use of pthread API" OFF)

PlatONnetwork/pWASM libc++/libcxx/CMakeLists.txt :262 

message(FATAL_ERROR "LIBCXX_HAS_PTHREAD_API can only be set to ON"
                        " when LIBCXX_ENABLE_THREADS is also set to ON.")

PlatONnetwork/pWASM libc++/libcxx/CMakeLists.txt :283 

message(FATAL_ERROR "The options LIBCXX_HAS_EXTERNAL_THREAD_API"
                        "and LIBCXX_HAS_PTHREAD_API cannot be both"
                        "set to ON at the same time.")

CTSRD-CHERI/cheribsd contrib/subrepo-cheri-libc++/CMakeLists.txt :270 

option(LIBCXX_HAS_PTHREAD_API "Ignore auto-detection and force use of pthread API" OFF)

CTSRD-CHERI/cheribsd contrib/subrepo-cheri-libc++/CMakeLists.txt :320 

message(FATAL_ERROR "LIBCXX_HAS_PTHREAD_API can only be set to ON"
                        " when LIBCXX_ENABLE_THREADS is also set to ON.")

CTSRD-CHERI/cheribsd contrib/subrepo-cheri-libc++/CMakeLists.txt :336 

message(FATAL_ERROR "The options LIBCXX_HAS_EXTERNAL_THREAD_API"
                        "and LIBCXX_HAS_PTHREAD_API cannot be both"
                        "set to ON at the same time.")

CTSRD-CHERI/cheribsd contrib/subrepo-cheri-libc++/CMakeLists.txt :349 

message(FATAL_ERROR "The options LIBCXX_HAS_PTHREAD_API"
                        "and LIBCXX_HAS_WIN32_THREAD_API cannot be both"
                        "set to ON at the same time.")