Add CMake build and fix major Linux blockers.
llvm-svn: 121510
diff --git a/libcxx/cmake/Modules/GetTriple.cmake b/libcxx/cmake/Modules/GetTriple.cmake
new file mode 100644
index 0000000..c555931
--- /dev/null
+++ b/libcxx/cmake/Modules/GetTriple.cmake
@@ -0,0 +1,53 @@
+# Define functions to get the host and target triple.
+
+function(get_host_triple out out_arch out_vendor out_os)
+ # Get the architecture.
+ set(arch ${CMAKE_HOST_SYSTEM_PROCESSOR})
+ if (arch STREQUAL "x86")
+ set(arch "i686")
+ endif()
+ # Get the vendor.
+ if (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Darwin")
+ set(vendor "apple")
+ else()
+ set(vendor "pc")
+ endif()
+ # Get os.
+ if (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Windows")
+ set(os "win32")
+ else()
+ string(TOLOWER ${CMAKE_HOST_SYSTEM_NAME} os)
+ endif()
+ set(triple "${arch}-${vendor}-${os}")
+ set(${out} ${triple} PARENT_SCOPE)
+ set(${out_arch} ${arch} PARENT_SCOPE)
+ set(${out_vendor} ${vendor} PARENT_SCOPE)
+ set(${out_os} ${os} PARENT_SCOPE)
+ message(STATUS "Host triple: ${triple}")
+endfunction()
+
+function(get_target_triple out out_arch out_vendor out_os)
+ # Get the architecture.
+ set(arch ${CMAKE_SYSTEM_PROCESSOR})
+ if (arch STREQUAL "x86")
+ set(arch "i686")
+ endif()
+ # Get the vendor.
+ if (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
+ set(vendor "apple")
+ else()
+ set(vendor "pc")
+ endif()
+ # Get os.
+ if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
+ set(os "win32")
+ else()
+ string(TOLOWER ${CMAKE_SYSTEM_NAME} os)
+ endif()
+ set(triple "${arch}-${vendor}-${os}")
+ set(${out} ${triple} PARENT_SCOPE)
+ set(${out_arch} ${arch} PARENT_SCOPE)
+ set(${out_vendor} ${vendor} PARENT_SCOPE)
+ set(${out_os} ${os} PARENT_SCOPE)
+ message(STATUS "Target triple: ${triple}")
+endfunction()