clang: Derive version name from LLVM unless specified explicitly. This means

clang is now clang 2.8.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106914 91177308-0d34-0410-b5e6-96231b3b80d8

CMakeLists.txt

@@ -1,10 +1,5 @@
 # Clang version information
 
-# Make sure that CMake reconfigures when the version changes.
-configure_file(
-  ${CMAKE_CURRENT_SOURCE_DIR}/VER
-  ${CMAKE_CURRENT_BINARY_DIR}/VER)
-
 set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
 
@@ -28,10 +23,9 @@ if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
   endif()
 endif()
 
-# Compute the Clang version from the contents of VER
-file(READ ${CMAKE_CURRENT_SOURCE_DIR}/VER CLANG_VERSION_DATA)
+# Compute the Clang version from the LLVM version.
 string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION 
-  ${CLANG_VERSION_DATA})
+  ${PACKAGE_VERSION})
 message(STATUS "Clang version: ${CLANG_VERSION}")
 
 string(REGEX REPLACE "([0-9]+)\\.[0-9]+(\\.[0-9]+)?" "\\1" CLANG_VERSION_MAJOR

VER

@@ -1 +0,0 @@
-2.0

include/clang/Basic/Makefile

@@ -13,7 +13,11 @@ include $(CLANG_LEVEL)/Makefile
 
 INPUT_TDS = $(wildcard $(PROJ_SRC_DIR)/Diagnostic*.td)
 
-CLANG_VERSION := $(shell cat $(PROJ_SRC_DIR)/../../../VER)
+# Compute the Clang version from the LLVM version, unless specified explicitly.
+ifndef CLANG_VERSION
+CLANG_VERSION := $(subst svn,,$(LLVMVersion))
+endif
+
 CLANG_VERSION_COMPONENTS := $(subst ., ,$(CLANG_VERSION))
 CLANG_VERSION_MAJOR := $(word 1,$(CLANG_VERSION_COMPONENTS))
 CLANG_VERSION_MINOR := $(word 2,$(CLANG_VERSION_COMPONENTS))
@@ -41,7 +45,7 @@ $(ObjDir)/arm_neon.inc.tmp : arm_neon.td $(TBLGEN) $(ObjDir)/.dir
 	$(Echo) "Building Clang arm_neon.inc with tblgen"
 	$(Verb) $(TableGen) -gen-arm-neon-sema -o $(call SYSPATH, $@) $<
 
-$(ObjDir)/Version.inc.tmp : Version.inc.in $(PROJ_SRC_DIR)/../../../VER $(ObjDir)/.dir
+$(ObjDir)/Version.inc.tmp : Version.inc.in Makefile $(LLVM_OBJ_ROOT)/Makefile.config $(ObjDir)/.dir
 	$(Echo) "Updating Clang version info."
 	$(Verb)sed -e "s#@CLANG_VERSION@#$(CLANG_VERSION)#g" \
 	           -e "s#@CLANG_VERSION_MAJOR@#$(CLANG_VERSION_MAJOR)#g" \

test/Preprocessor/init.c

@@ -50,9 +50,9 @@
 // COMMON:#define __STDC__ 1
 // COMMON:#define __VERSION__
 // COMMON:#define __clang__ 1
-// COMMON:#define __clang_major__ 2
-// COMMON:#define __clang_minor__ 0
-// COMMON:#define __clang_patchlevel__ 0
+// COMMON:#define __clang_major__ {{[0-9]+}}
+// COMMON:#define __clang_minor__ {{[0-9]+}}
+// COMMON:#define __clang_patchlevel__ {{[0-9]+}}
 // COMMON:#define __clang_version__
 // COMMON:#define __llvm__ 1
 //