[cmake] Include openmp with add_llvm_external_project

Summary:
Include projects/openmp into the build using add_llvm_external_project
instead of add_subdirectory.  This creates an option
LLVM_TOOL_OPENMP_BUILD that selects whether this project gets included
in an in-tree build.

Reviewers: beanz, AndreyChurbanov, jlpeyton

Subscribers: srhines, openmp-commits, llvm-commits, mgorny

Differential Revision: https://reviews.llvm.org/D30470

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297185 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/projects/CMakeLists.txt b/projects/CMakeLists.txt
index 2122665..79d8fc7 100644 (file)
--- a/projects/CMakeLists.txt
+++ b/projects/CMakeLists.txt
@@ -10,7 +10,8 @@ foreach(entry ${entries})
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/libcxxabi) AND
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/libunwind) AND
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/test-suite) AND
-       (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/parallel-libs))
+       (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/parallel-libs) AND
+       (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/openmp))
       add_subdirectory(${entry})
     endif()
   endif()
@@ -35,3 +36,4 @@ endif()
 
 add_llvm_external_project(dragonegg)
 add_llvm_external_project(parallel-libs)
+add_llvm_external_project(openmp)