[CMake] Add distribution target that is the "just-build" side of inst…

…all-distribution

This is just a convenience target to allow limiting what you build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262427 91177308-0d34-0410-b5e6-96231b3b80d8

CMakeLists.txt

@@ -778,8 +778,15 @@ if(LLVM_DISTRIBUTION_COMPONENTS)
     message(FATAL_ERROR "LLVM_DISTRIBUTION_COMPONENTS cannot be specified with multi-configuration generators (i.e. Xcode or Visual Studio)")
   endif()
 
+  add_custom_target(distribution)
   add_custom_target(install-distribution)
   foreach(target ${LLVM_DISTRIBUTION_COMPONENTS})
+    if(TARGET ${target})
+      add_dependencies(distribution ${target})
+    else()
+      message(FATAL_ERROR "Specified distribution component '${target}' doesn't have a target")
+    endif()
+
     if(TARGET install-${target})
       add_dependencies(install-distribution install-${target})
     else()