[CMake] Apply r279151 cleanup to libc++abi.

This patch applies changes similar to those in r279515 to libc++abi.

Summary of changes in this patch:

* Renamed variable LLVM_CONFIG -> LLVM_CONFIG_PATH
* Renamed variable LIBCXXABI_BUILT_STANDALONE -> LIBCXXABI_STANDALONE_BUILD
* Add an include of AddLLVM in the tests subdirectory for add_lit_testsuite.

llvm-svn: 279936

libcxxabi/CMakeLists.txt

@@ -13,15 +13,17 @@ if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
 
   # Rely on llvm-config.
   set(CONFIG_OUTPUT)
-  find_program(LLVM_CONFIG "llvm-config")
+  if (NOT LLVM_CONFIG_PATH)
+    find_program(LLVM_CONFIG_PATH "llvm-config")
+  endif()
   if(DEFINED LLVM_PATH)
     set(LLVM_INCLUDE_DIR ${LLVM_INCLUDE_DIR} CACHE PATH "Path to llvm/include")
     set(LLVM_PATH ${LLVM_PATH} CACHE PATH "Path to LLVM source tree")
     set(LLVM_MAIN_SRC_DIR ${LLVM_PATH})
     set(LLVM_CMAKE_PATH "${LLVM_PATH}/cmake/modules")
-  elseif(LLVM_CONFIG)
-    message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}")
-    set(CONFIG_COMMAND ${LLVM_CONFIG}
+  elseif(LLVM_CONFIG_PATH)
+    message(STATUS "Found LLVM_CONFIG_PATH as ${LLVM_CONFIG_PATH}")
+    set(CONFIG_COMMAND ${LLVM_CONFIG_PATH}
       "--includedir"
       "--prefix"
       "--src-root")
@@ -51,7 +53,7 @@ if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
     set(LLVM_LIT_PATH "${LLVM_PATH}/utils/lit/lit.py")
   else()
     message(FATAL_ERROR "llvm-config not found and LLVM_MAIN_SRC_DIR not defined. "
-                        "Reconfigure with -DLLVM_CONFIG=path/to/llvm-config "
+                        "Reconfigure with -DLLVM_CONFIG_PATH=path/to/llvm-config "
                         "or -DLLVM_PATH=path/to/llvm-source-root.")
   endif()
 
@@ -96,7 +98,7 @@ if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
   set(LIBCXXABI_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}" CACHE STRING
       "Define suffix of library directory name (32/64)")
 
-  set(LIBCXXABI_BUILT_STANDALONE 1)
+  set(LIBCXXABI_STANDALONE_BUILD 1)
 else()
   set(LLVM_MAIN_SRC_DIR "${CMAKE_SOURCE_DIR}" CACHE PATH "Path to LLVM source tree")
   set(LLVM_LIT "${CMAKE_SOURCE_DIR}/utils/lit/lit.py")
@@ -388,7 +390,7 @@ endif()
 # soname, etc...
 add_subdirectory(src)
 
-if (LIBCXXABI_BUILT_STANDALONE AND NOT LIBCXXABI_ENABLE_SHARED)
+if (LIBCXXABI_STANDALONE_BUILD AND NOT LIBCXXABI_ENABLE_SHARED)
   # We can't reasonably test the system C++ library with a static libc++abi.
   # We either need to be able to replace libc++abi at run time (with a shared
   # libc++abi), or we need to be able to replace the C++ runtime (with a non-

libcxxabi/src/CMakeLists.txt

@@ -55,7 +55,7 @@ endif()
 append_if(libraries LIBCXXABI_HAS_C_LIB c)
 
 if (LIBCXXABI_USE_LLVM_UNWINDER)
-  if (NOT LIBCXXABI_BUILT_STANDALONE)
+  if (NOT LIBCXXABI_STANDALONE_BUILD)
     if (LIBUNWIND_ENABLE_SHARED)
       list(APPEND libraries unwind_shared)
     else()

libcxxabi/test/CMakeLists.txt

@@ -1,3 +1,4 @@
+include(AddLLVM) # for add_lit_testsuite
 macro(pythonize_bool var)
   if (${var})
     set(${var} True)
@@ -34,7 +35,7 @@ else()
   set(LIBCXXABI_TEST_DEPS cxxabi_static)
 endif()
 
-if (NOT LIBCXXABI_BUILT_STANDALONE)
+if (NOT LIBCXXABI_STANDALONE_BUILD)
   list(APPEND LIBCXXABI_TEST_DEPS cxx)
   if (LIBCXXABI_USE_LLVM_UNWINDER)
     list(APPEND LIBCXXABI_TEST_DEPS unwind)

libcxxabi/www/index.html

@@ -104,7 +104,7 @@
       configure CMake using either of the following options.
   </p>
   <ul>
-  <li><code>-DLLVM_CONFIG=path/to/llvm-config</code></li>
+  <li><code>-DLLVM_CONFIG_PATH=path/to/llvm-config</code></li>
   <li><code>-DLLVM_PATH=path/to/llvm-source-root</code></li>
   </ul>