Add CLANG_BUILD_TOOLS as a clang counterpart for LLVM_BUILD_TOOLS

LLVM_BUILD_TOOLS is a boolean variable that controls whether or not generated
targets for llvm tools are built by the "all" target. CLANG_BUILD_TOOLS is an
analogous variable for clang targets.

This is useful functionality for selectively disabling the building of clang
targets by default to speed up builds.

In terms of implementation, I just followed the model of LLVM's implementation
of this functionality.

llvm-svn: 275006

1 files changed, 17 insertions, 10 deletions

diff --git a/clang/cmake/modules/AddClang.cmake b/clang/cmake/modules/AddClang.cmake
index 121ad29b500..6e063a706bf 100644
--- a/clang/cmake/modules/AddClang.cmake
+++ b/clang/cmake/modules/AddClang.cmake
@@ -121,17 +121,24 @@ macro(add_clang_executable name)
 endmacro(add_clang_executable)
 
 macro(add_clang_tool name)
+  if (NOT CLANG_BUILD_TOOLS)
+    set(EXCLUDE_FROM_ALL ON)
+  endif()
+
   add_clang_executable(${name} ${ARGN})
-  install(TARGETS ${name}
-    RUNTIME DESTINATION bin
-    COMPONENT ${name})
-
-  if(NOT CMAKE_CONFIGURATION_TYPES)
-    add_custom_target(install-${name}
-      DEPENDS ${name}
-      COMMAND "${CMAKE_COMMAND}"
-              -DCMAKE_INSTALL_COMPONENT=${name}
-              -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+
+  if (CLANG_BUILD_TOOLS)
+    install(TARGETS ${name}
+      RUNTIME DESTINATION bin
+      COMPONENT ${name})
+
+    if(NOT CMAKE_CONFIGURATION_TYPES)
+      add_custom_target(install-${name}
+        DEPENDS ${name}
+        COMMAND "${CMAKE_COMMAND}"
+        -DCMAKE_INSTALL_COMPONENT=${name}
+        -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+    endif()
   endif()
 endmacro()