Respects USE_CLANG_COMPLETER flag in CMake build
If USE_CLANG_COMPLETER is ON, will try to use the system clang, and if the version is not the minimum required or not present, download.
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@ -34,14 +34,15 @@ option( USE_SYSTEM_LIBCLANG "Set to ON to use the system libclang library" OFF )
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option( EXTERNAL_LIBCLANG_PATH "Path libclang library to use" )
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# Checks for clang 3.2 (LLVM 4.2+)
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if ( NOT USE_SYSTEM_LIBCLANG AND NOT PATH_TO_LLVM_ROOT )
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# Are we using it?
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if ( COMPILER_IS_CLANG AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.1 )
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set( USE_SYSTEM_LIBCLANG ON )
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if ( USE_CLANG_COMPLETER AND NOT USE_SYSTEM_LIBCLANG AND NOT PATH_TO_LLVM_ROOT )
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# Figure out Clang version
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if ( COMPILER_IS_CLANG )
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set( CLANG_VERSION ${CMAKE_CXX_COMPILER_VERSION} )
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else()
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# If not using it, is it in the system and the right version?
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execute_process( COMMAND clang -dumpversion OUTPUT_VARIABLE CLANG_VERSION )
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if ( CLANG_VERSION VERSION_GREATER 4.1 )
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endif()
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if ( CLANG_VERSION VERSION_EQUAL 4.2 OR CLANG_VERSION VERSION_GREATER 4.2 )
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# Good enough, use it.
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set( USE_SYSTEM_LIBCLANG ON )
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else() # If the wrong version, or not found, download
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message( "Downloading Clang 3.2" )
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@ -62,7 +63,6 @@ if ( NOT USE_SYSTEM_LIBCLANG AND NOT PATH_TO_LLVM_ROOT )
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# And set PATH_TO_LLVM_ROOT
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set( PATH_TO_LLVM_ROOT "${CMAKE_CURRENT_BINARY_DIR}/../${CLANG_DIRNAME}" )
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endif()
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endif()
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endif()
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if ( PATH_TO_LLVM_ROOT OR USE_SYSTEM_LIBCLANG OR EXTERNAL_LIBCLANG_PATH )
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