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Add friendly clang selection using cmake

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Zeh Rizzatti 2013-02-06 16:45:44 -03:00 committed by Strahinja Val Markovic
parent 7be0bb6a4a
commit 6121d61b1b
1 changed files with 32 additions and 0 deletions
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32
cpp/ycm/CMakeLists.txt
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@ -33,6 +33,38 @@ option( PATH_TO_LLVM_ROOT "Path to the root of a LLVM+Clang binary distribution"
option( USE_SYSTEM_LIBCLANG "Set to ON to use the system libclang library" OFF ) option( USE_SYSTEM_LIBCLANG "Set to ON to use the system libclang library" OFF )
option( EXTERNAL_LIBCLANG_PATH "Path libclang library to use" ) option( EXTERNAL_LIBCLANG_PATH "Path libclang library to use" )
# Checks for clang 3.2 (LLVM 4.2+)
if ( NOT USE_SYSTEM_LIBCLANG AND NOT PATH_TO_LLVM_ROOT )
# Are we using it?
if ( COMPILER_IS_CLANG AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.1 )
set( USE_SYSTEM_LIBCLANG ON )
else()
# If not using it, is it in the system and the right version?
execute_process( COMMAND clang -dumpversion OUTPUT_VARIABLE CLANG_VERSION )
if ( CLANG_VERSION VERSION_GREATER 4.1 )
set( USE_SYSTEM_LIBCLANG ON )
else() # If the wrong version, or not found, download
message( "Downloading Clang 3.2" )
set( CLANG_URL "http://llvm.org/releases/3.2" )
if ( APPLE )
set( CLANG_DIRNAME "clang+llvm-3.2-x86_64-apple-darwin11" )
set( CLANG_MD5 "fbdca3b4e8cdaa2352f2aeb038a16532" )
else()
set( CLANG_DIRNAME "clang+llvm-3.2-x86_64-linux-ubuntu-12.04" )
set( CLANG_MD5 "81821e339d7300afb76aca8edab2cf4f" )
endif()
set( CLANG_FILENAME "${CLANG_DIRNAME}.tar.gz" )
file(
DOWNLOAD "${CLANG_URL}/${CLANG_FILENAME}" "./${CLANG_FILENAME}"
SHOW_PROGRESS EXPECTED_MD5 "${CLANG_MD5}"
)
execute_process( COMMAND tar -xzf ${CLANG_FILENAME} )
# And set PATH_TO_LLVM_ROOT
set( PATH_TO_LLVM_ROOT "${CMAKE_CURRENT_BINARY_DIR}/../${CLANG_DIRNAME}" )
endif()
endif()
endif()
if ( PATH_TO_LLVM_ROOT OR USE_SYSTEM_LIBCLANG OR EXTERNAL_LIBCLANG_PATH ) if ( PATH_TO_LLVM_ROOT OR USE_SYSTEM_LIBCLANG OR EXTERNAL_LIBCLANG_PATH )
set( USE_CLANG_COMPLETER TRUE ) set( USE_CLANG_COMPLETER TRUE )
endif() endif()