Support
)
+# Figure out if we can track VC revisions.
+function(find_first_existing_file out_var)
+ foreach(file ${ARGN})
+ if(EXISTS "${file}")
+ set(${out_var} "${file}" PARENT_SCOPE)
+ return()
+ endif()
+ endforeach()
+endfunction()
+
+find_first_existing_file(llvm_vc
+ "${LLVM_MAIN_SRC_DIR}/.git/logs/HEAD"
+ "${LLVM_MAIN_SRC_DIR}/.svn/entries")
+find_first_existing_file(clang_vc
+ "${CLANG_SOURCE_DIR}/.git/logs/HEAD"
+ "${CLANG_SOURCE_DIR}/.svn/entries")
+
+if(DEFINED llvm_vc AND DEFINED clang_vc)
+ # Create custom target to generate the VC revision include.
+ add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc"
+ DEPENDS "${llvm_vc}" "${clang_vc}"
+ COMMAND
+ ${CMAKE_COMMAND} "-DFIRST_SOURCE_DIR=${LLVM_MAIN_SRC_DIR}"
+ "-DFIRST_NAME=LLVM"
+ "-DSECOND_SOURCE_DIR=${CLANG_SOURCE_DIR}"
+ "-DSECOND_NAME=SVN"
+ "-DHEADER_FILE=${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc"
+ -P "${LLVM_MAIN_SRC_DIR}/cmake/modules/GetSVN.cmake")
+
+ # Mark the generated header as being generated.
+ set_source_files_properties("${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc"
+ PROPERTIES GENERATED TRUE
+ HEADER_FILE_ONLY TRUE)
+
+ # Tell Version.cpp that it needs to build with -DHAVE_SVN_VERSION_INC.
+ set_source_files_properties(Version.cpp
+ PROPERTIES COMPILE_DEFINITIONS "HAVE_SVN_VERSION_INC")
+ set(version_inc "${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc")
+else()
+ set(version_inc)
+endif()
+
add_clang_library(clangBasic
Attributes.cpp
Builtins.cpp
VersionTuple.cpp
VirtualFileSystem.cpp
Warnings.cpp
+ ${version_inc}
)
-# Determine Subversion revision.
-# FIXME: This only gets updated when CMake is run, so this revision number
-# may be out-of-date!
-if( NOT IS_SYMLINK "${CLANG_SOURCE_DIR}" ) # See PR 8437
- find_package(Subversion)
-endif()
-if (Subversion_FOUND AND EXISTS "${CLANG_SOURCE_DIR}/.svn")
- set(FIRST_SOURCE_DIR ${LLVM_MAIN_SRC_DIR})
- set(FIRST_REPOSITORY LLVM_REPOSITORY)
- set(SECOND_SOURCE_DIR ${CLANG_SOURCE_DIR})
- set(SECOND_REPOSITORY SVN_REPOSITORY)
- set(HEADER_FILE ${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc)
- include(GetSVN)
-
- # Mark the generated header as being generated.
- message(STATUS "Expecting header to go in ${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc")
- set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc
- PROPERTIES GENERATED TRUE
- HEADER_FILE_ONLY TRUE)
-
- # Tell Version.cpp that it needs to build with -DHAVE_SVN_VERSION_INC.
- set_source_files_properties(Version.cpp
- PROPERTIES COMPILE_DEFINITIONS "HAVE_SVN_VERSION_INC")
-
-endif()