[CMake] Automatically pick up subdirectories in llvm/tools as 'external projects' if they contain a 'CMakeLists.txt' file.

Allow CMake to pick up external projects in llvm/tools without the need to modify the "llvm/tools/CMakeLists.txt" file.
This makes it easier to work with projects that live in other repositories, without needing to specify each one in "llvm/tools/CMakeLists.txt".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188921 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 44 insertions, 34 deletions

diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index e6637813cd..66271a9f0a 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -5,64 +5,74 @@
 if( NOT WIN32 OR MSYS OR CYGWIN )
   # We currently require 'sed' to build llvm-config, so don't try to build it
   # on pure Win32.
-  add_subdirectory(llvm-config)
+  add_llvm_tool_subdirectory(llvm-config)
+else()
+  ignore_llvm_tool_subdirectory(llvm-config)
 endif()
 
-add_subdirectory(opt)
-add_subdirectory(llvm-as)
-add_subdirectory(llvm-dis)
-add_subdirectory(llvm-mc)
+add_llvm_tool_subdirectory(opt)
+add_llvm_tool_subdirectory(llvm-as)
+add_llvm_tool_subdirectory(llvm-dis)
+add_llvm_tool_subdirectory(llvm-mc)
 
-add_subdirectory(llc)
-add_subdirectory(llvm-ar)
-add_subdirectory(llvm-nm)
-add_subdirectory(llvm-size)
+add_llvm_tool_subdirectory(llc)
+add_llvm_tool_subdirectory(llvm-ar)
+add_llvm_tool_subdirectory(llvm-nm)
+add_llvm_tool_subdirectory(llvm-size)
 
-add_subdirectory(llvm-cov)
-add_subdirectory(llvm-prof)
-add_subdirectory(llvm-link)
-add_subdirectory(lli)
+add_llvm_tool_subdirectory(llvm-cov)
+add_llvm_tool_subdirectory(llvm-prof)
+add_llvm_tool_subdirectory(llvm-link)
+add_llvm_tool_subdirectory(lli)
 
-add_subdirectory(llvm-extract)
-add_subdirectory(llvm-diff)
-add_subdirectory(macho-dump)
-add_subdirectory(llvm-objdump)
-add_subdirectory(llvm-readobj)
-add_subdirectory(llvm-rtdyld)
-add_subdirectory(llvm-dwarfdump)
+add_llvm_tool_subdirectory(llvm-extract)
+add_llvm_tool_subdirectory(llvm-diff)
+add_llvm_tool_subdirectory(macho-dump)
+add_llvm_tool_subdirectory(llvm-objdump)
+add_llvm_tool_subdirectory(llvm-readobj)
+add_llvm_tool_subdirectory(llvm-rtdyld)
+add_llvm_tool_subdirectory(llvm-dwarfdump)
 if( LLVM_USE_INTEL_JITEVENTS )
-  add_subdirectory(llvm-jitlistener)
+  add_llvm_tool_subdirectory(llvm-jitlistener)
+else()
+  ignore_llvm_tool_subdirectory(llvm-jitlistener)
 endif( LLVM_USE_INTEL_JITEVENTS )
 
-add_subdirectory(bugpoint)
-add_subdirectory(bugpoint-passes)
-add_subdirectory(llvm-bcanalyzer)
-add_subdirectory(llvm-stress)
-add_subdirectory(llvm-mcmarkup)
+add_llvm_tool_subdirectory(bugpoint)
+add_llvm_tool_subdirectory(bugpoint-passes)
+add_llvm_tool_subdirectory(llvm-bcanalyzer)
+add_llvm_tool_subdirectory(llvm-stress)
+add_llvm_tool_subdirectory(llvm-mcmarkup)
 
-add_subdirectory(llvm-symbolizer)
+add_llvm_tool_subdirectory(llvm-symbolizer)
 
-add_subdirectory(obj2yaml)
-add_subdirectory(yaml2obj)
+add_llvm_tool_subdirectory(obj2yaml)
+add_llvm_tool_subdirectory(yaml2obj)
 
 if( NOT WIN32 )
-  add_subdirectory(lto)
+  add_llvm_tool_subdirectory(lto)
+else()
+  ignore_llvm_tool_subdirectory(lto)
 endif()
 
 if( LLVM_ENABLE_PIC )
   # TODO: support other systems:
   if( (CMAKE_SYSTEM_NAME STREQUAL "Linux")
       OR (CMAKE_SYSTEM_NAME STREQUAL "FreeBSD") )
-    add_subdirectory(gold)
+    add_llvm_tool_subdirectory(gold)
+  else()
+    ignore_llvm_tool_subdirectory(gold)
   endif()
+else()
+  ignore_llvm_tool_subdirectory(gold)
 endif()
 
 add_llvm_external_project(clang)
 
 if( NOT LLVM_INCLUDE_TOOLS STREQUAL "bootstrap-only" )
-  add_llvm_external_project(lld)
-  add_llvm_external_project(lldb)
-  add_llvm_external_project(polly)
+  # Automatically add remaining sub-directories containing a 'CMakeLists.txt'
+  # file as external projects.
+  add_llvm_implicit_external_projects()
 endif()
 
 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)