Initial support for the CMake build system.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56419 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 21 insertions, 0 deletions

diff --git a/cmake/modules/AddPartiallyLinkedObject.cmake b/cmake/modules/AddPartiallyLinkedObject.cmake
new file mode 100755
index 0000000000..b985b3eb28
--- /dev/null
+++ b/cmake/modules/AddPartiallyLinkedObject.cmake
@@ -0,0 +1,21 @@
+
+macro(add_partially_linked_object lib)
+  if( MSVC )
+    add_llvm_library( ${lib} ${ARGN})
+  else( MSVC )
+    set(pll ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}/${lib}.o)
+    set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/temp_lib)
+    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/temp_lib)
+    add_library( ${lib} STATIC ${ARGN})
+    add_custom_command(OUTPUT ${pll}
+      MESSAGE "Building ${lib}.o..."
+      DEPENDS ${lib}
+      WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/temp_lib
+      COMMAND ar x ${CMAKE_STATIC_LIBRARY_PREFIX}${lib}${CMAKE_STATIC_LIBRARY_SUFFIX}
+      COMMAND ld -r *${CMAKE_CXX_OUTPUT_EXTENSION} -o ${pll}
+      COMMAND rm -f *${CMAKE_CXX_OUTPUT_EXTENSION}
+      )
+    add_custom_target(${lib}_pll ALL DEPENDS ${pll})
+    set( llvm_libs ${llvm_libs} ${pll} PARENT_SCOPE)
+  endif( MSVC )
+endmacro(add_partially_linked_object lib)