366 lines
13 KiB
CMake
366 lines
13 KiB
CMake
# Copyright (C) 2011, 2012 Google Inc.
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#
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# This file is part of YouCompleteMe.
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#
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# YouCompleteMe is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# YouCompleteMe is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with YouCompleteMe. If not, see <http://www.gnu.org/licenses/>.
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cmake_minimum_required( VERSION 2.8 )
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project( ycm_support_libs )
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set( CLIENT_LIB "ycm_client_support" )
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set( SERVER_LIB "ycm_core" )
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set( Python_ADDITIONAL_VERSIONS 2.7 2.6 )
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find_package( PythonLibs 2.6 REQUIRED )
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if ( NOT PYTHONLIBS_VERSION_STRING VERSION_LESS "3.0.0" )
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message( FATAL_ERROR
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"CMake found python3 libs instead of python2 libs. YCM works only with "
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"python2.\n" )
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endif()
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option( USE_DEV_FLAGS "Use compilation flags meant for YCM developers" OFF )
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option( USE_CLANG_COMPLETER "Use Clang semantic completer for C/C++/ObjC" OFF )
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option( USE_SYSTEM_LIBCLANG "Set to ON to use the system libclang library" OFF )
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set( PATH_TO_LLVM_ROOT "" CACHE PATH "Path to the root of a LLVM+Clang binary distribution" )
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set( EXTERNAL_LIBCLANG_PATH "" CACHE PATH "Path to the libclang library to use" )
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if ( USE_CLANG_COMPLETER AND
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NOT USE_SYSTEM_LIBCLANG AND
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NOT PATH_TO_LLVM_ROOT AND
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NOT EXTERNAL_LIBCLANG_PATH )
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message( "Downloading Clang 3.4" )
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set( CLANG_URL "http://llvm.org/releases/3.4" )
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if ( APPLE )
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set( CLANG_DIRNAME "clang+llvm-3.4-x86_64-apple-darwin10.9" )
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set( CLANG_MD5 "4f43ea0e87090ae5e7bec12373ca4927" )
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set( CLANG_FILENAME "${CLANG_DIRNAME}.tar.gz" )
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else()
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if ( 64_BIT_PLATFORM )
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set( CLANG_DIRNAME "clang+llvm-3.4-x86_64-unknown-ubuntu12.04" )
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set( CLANG_MD5 "6077459d20a7ff412eefc6ce3b9f5c85" )
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set( CLANG_FILENAME "${CLANG_DIRNAME}.tar.xz" )
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else()
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message( "No pre-built Clang 3.4 binaries for 32 bit linux, "
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"downloading Clang 3.3" )
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set( CLANG_URL "http://llvm.org/releases/3.3" )
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set( CLANG_DIRNAME "clang+llvm-3.3-i386-debian6" )
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set( CLANG_MD5 "415d033b60659433d4631df894673802" )
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set( CLANG_FILENAME "${CLANG_DIRNAME}.tar.bz2" )
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endif()
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endif()
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file(
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DOWNLOAD "${CLANG_URL}/${CLANG_FILENAME}" "./${CLANG_FILENAME}"
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SHOW_PROGRESS EXPECTED_MD5 "${CLANG_MD5}"
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)
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if ( CLANG_FILENAME MATCHES ".+bz2" )
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execute_process( COMMAND tar -xjf ${CLANG_FILENAME} )
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elseif( CLANG_FILENAME MATCHES ".+xz" )
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execute_process( COMMAND tar -xJf ${CLANG_FILENAME} )
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else()
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execute_process( COMMAND tar -xzf ${CLANG_FILENAME} )
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endif()
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# And set PATH_TO_LLVM_ROOT
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set( PATH_TO_LLVM_ROOT "${CMAKE_CURRENT_BINARY_DIR}/../${CLANG_DIRNAME}" )
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endif()
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if ( PATH_TO_LLVM_ROOT OR USE_SYSTEM_LIBCLANG OR EXTERNAL_LIBCLANG_PATH )
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set( USE_CLANG_COMPLETER TRUE )
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endif()
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if ( USE_CLANG_COMPLETER AND
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NOT PATH_TO_LLVM_ROOT AND
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NOT USE_SYSTEM_LIBCLANG AND
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NOT EXTERNAL_LIBCLANG_PATH )
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message( FATAL_ERROR
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"You have not specified which libclang to use. You have several options:\n"
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" 1. Set PATH_TO_LLVM_ROOT to a path to the root of a LLVM+Clang binary "
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"distribution. You can download such a binary distro from llvm.org. This "
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"is the recommended approach.\n"
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" 2. Set USE_SYSTEM_LIBCLANG to ON; this makes YCM search for the system "
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"version of libclang.\n"
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" 3. Set EXTERNAL_LIBCLANG_PATH to a path to whatever "
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"libclang.[so|dylib|dll] you wish to use.\n"
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"You HAVE to pick one option. See the docs for more information.")
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endif()
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if ( USE_CLANG_COMPLETER )
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message( "Using libclang to provide semantic completion for C/C++/ObjC" )
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else()
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message( "NOT using libclang, no semantic completion for C/C++/ObjC will be "
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"available" )
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endif()
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if ( PATH_TO_LLVM_ROOT )
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set( CLANG_INCLUDES_DIR "${PATH_TO_LLVM_ROOT}/include" )
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else()
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set( CLANG_INCLUDES_DIR "${CMAKE_SOURCE_DIR}/llvm/include" )
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endif()
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if ( NOT IS_ABSOLUTE "${CLANG_INCLUDES_DIR}" )
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get_filename_component(CLANG_INCLUDES_DIR
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"${CMAKE_BINARY_DIR}/${CLANG_INCLUDES_DIR}" ABSOLUTE)
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endif()
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if ( NOT EXTERNAL_LIBCLANG_PATH AND PATH_TO_LLVM_ROOT )
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if ( MINGW )
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set( LIBCLANG_SEARCH_PATH "${PATH_TO_LLVM_ROOT}/bin" )
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else()
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set( LIBCLANG_SEARCH_PATH "${PATH_TO_LLVM_ROOT}/lib" )
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endif()
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# Need TEMP because find_library does not work with an option variable
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find_library( TEMP NAMES clang libclang
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PATHS ${LIBCLANG_SEARCH_PATH}
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NO_DEFAULT_PATH )
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set( EXTERNAL_LIBCLANG_PATH ${TEMP} )
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endif()
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# This is a workaround for a CMake bug with include_directories(SYSTEM ...)
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# on Mac OS X. Bug report: http://public.kitware.com/Bug/view.php?id=10837
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if ( APPLE )
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set( CMAKE_INCLUDE_SYSTEM_FLAG_CXX "-isystem " )
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endif()
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# The SYSTEM flag makes sure that -isystem[header path] is passed to the
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# compiler instead of the standard -I[header path]. Headers included with
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# -isystem do not generate warnings (and they shouldn't; e.g. boost warnings are
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# just noise for us since we won't be changing them).
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include_directories(
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SYSTEM
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${BoostParts_SOURCE_DIR}
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${PYTHON_INCLUDE_DIRS}
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${CLANG_INCLUDES_DIR}
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)
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file( GLOB_RECURSE SERVER_SOURCES *.h *.cpp )
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# The test sources are a part of a different target, so we remove them
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# The CMakeFiles cpp file is picked up when the user creates an in-source build,
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# and we don't want that. We also remove client-specific code
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file( GLOB_RECURSE to_remove tests/*.h tests/*.cpp CMakeFiles/*.cpp *client* )
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if( to_remove )
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list( REMOVE_ITEM SERVER_SOURCES ${to_remove} )
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endif()
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if ( USE_CLANG_COMPLETER )
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include_directories(
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${CMAKE_CURRENT_SOURCE_DIR}
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"${CMAKE_CURRENT_SOURCE_DIR}/ClangCompleter" )
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add_definitions( -DUSE_CLANG_COMPLETER )
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else()
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file( GLOB_RECURSE to_remove_clang ClangCompleter/*.h ClangCompleter/*.cpp )
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if( to_remove_clang )
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list( REMOVE_ITEM SERVER_SOURCES ${to_remove_clang} )
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endif()
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endif()
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#############################################################################
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# One can use the system libclang.[so|dylib] like so:
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# cmake -DUSE_SYSTEM_LIBCLANG=1 [...]
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# One can also explicitely pick the external libclang.[so|dylib] for use like so:
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# cmake -DEXTERNAL_LIBCLANG_PATH=/path/to/libclang.so [...]
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# The final .so we build will then first look in the same dir in which it is
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# located for libclang.so. This is provided by the rpath = $ORIGIN feature.
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if ( EXTERNAL_LIBCLANG_PATH OR USE_SYSTEM_LIBCLANG )
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if ( USE_SYSTEM_LIBCLANG )
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if ( APPLE )
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set( ENV_LIB_PATHS ENV DYLD_LIBRARY_PATH )
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elseif ( UNIX )
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set( ENV_LIB_PATHS ENV LD_LIBRARY_PATH )
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elseif ( WIN32 )
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set( ENV_LIB_PATHS ENV PATH )
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else ()
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set( ENV_LIB_PATHS "" )
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endif()
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# On Debian-based systems, llvm installs into /usr/lib/llvm-x.y.
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file( GLOB SYS_LLVM_PATHS "/usr/lib/llvm*/lib" )
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# Need TEMP because find_library does not work with an option variable
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find_library( TEMP clang
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PATHS
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${ENV_LIB_PATHS}
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/usr/lib
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/usr/lib/llvm
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${SYS_LLVM_PATHS}
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/Library/Developer/CommandLineTools/usr/lib,
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/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib )
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set( EXTERNAL_LIBCLANG_PATH ${TEMP} )
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else()
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# For Macs, we do things differently; look further in this file.
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if ( NOT APPLE )
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# Setting this to true makes sure that libraries we build will have our rpath
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# set even without having to do "make install"
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set( CMAKE_BUILD_WITH_INSTALL_RPATH TRUE )
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set( CMAKE_INSTALL_RPATH "\$ORIGIN" )
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endif()
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endif()
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set( LIBCLANG_TARGET ${EXTERNAL_LIBCLANG_PATH} )
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message(
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"Using external libclang: ${EXTERNAL_LIBCLANG_PATH}" )
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else()
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set( LIBCLANG_TARGET )
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endif()
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if ( EXTRA_RPATH )
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set( CMAKE_INSTALL_RPATH "${EXTRA_RPATH}:${CMAKE_INSTALL_RPATH}" )
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endif()
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# Needed on Linux machines, but not on Macs
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if ( UNIX AND NOT APPLE )
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set( EXTRA_LIBS rt )
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endif()
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#############################################################################
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# We don't actually need all of the files this picks up, just the ones needed by
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# PythonSupport.cpp. But this is easier to maintain and dead code elemination
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# will remove unused code.
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file( GLOB CLIENT_SOURCES *.h *.cpp )
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file( GLOB SERVER_SPECIFIC *ycm_core* )
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if( SERVER_SPECIFIC )
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list( REMOVE_ITEM CLIENT_SOURCES ${SERVER_SPECIFIC} )
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endif()
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add_library( ${CLIENT_LIB} SHARED
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${CLIENT_SOURCES}
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)
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target_link_libraries( ${CLIENT_LIB}
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BoostParts
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${PYTHON_LIBRARIES}
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${EXTRA_LIBS}
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)
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#############################################################################
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add_library( ${SERVER_LIB} SHARED
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${SERVER_SOURCES}
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)
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target_link_libraries( ${SERVER_LIB}
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BoostParts
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${PYTHON_LIBRARIES}
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${LIBCLANG_TARGET}
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${EXTRA_LIBS}
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)
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if( LIBCLANG_TARGET )
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if( NOT WIN32 )
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add_custom_command(
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TARGET ${SERVER_LIB}
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POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy "${LIBCLANG_TARGET}" "$<TARGET_FILE_DIR:${SERVER_LIB}>"
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)
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else()
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add_custom_command(
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TARGET ${SERVER_LIB}
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POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy "${PATH_TO_LLVM_ROOT}/bin/libclang.dll" "$<TARGET_FILE_DIR:${SERVER_LIB}>")
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endif()
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endif()
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#############################################################################
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# Convenience target that builds both support libs.
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add_custom_target( ${PROJECT_NAME}
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DEPENDS ${CLIENT_LIB} ${SERVER_LIB} )
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#############################################################################
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# Things are a bit different on Macs when using an external libclang.dylib; here
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# we want to make sure we use @loader_path/libclang.dylib instead of
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# @rpath/libclang.dylib in the final ycm_core.so. If we use the
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# @rpath version, then it may load the system libclang which the user
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# explicitely does not want (otherwise the user would specify
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# USE_SYSTEM_LIBCLANG). With @loader_path, we make sure that only the
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# libclang.dylib present in the same directory as our ycm_core.so
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# is used.
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if ( EXTERNAL_LIBCLANG_PATH AND APPLE )
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add_custom_command( TARGET ${SERVER_LIB}
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POST_BUILD
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COMMAND install_name_tool
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"-change"
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"@rpath/libclang.dylib"
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"@loader_path/libclang.dylib"
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"$<TARGET_FILE:${SERVER_LIB}>"
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)
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endif()
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#############################################################################
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# We don't want the "lib" prefix, it can screw up python when it tries to search
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# for our module
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set_target_properties( ${CLIENT_LIB} PROPERTIES PREFIX "")
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set_target_properties( ${SERVER_LIB} PROPERTIES PREFIX "")
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if ( WIN32 OR CYGWIN )
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# This is the extension for compiled Python modules on Windows
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set_target_properties( ${CLIENT_LIB} PROPERTIES SUFFIX ".pyd")
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set_target_properties( ${SERVER_LIB} PROPERTIES SUFFIX ".pyd")
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else()
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# Even on macs, we want a .so extension instead of a .dylib which is what
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# cmake would give us by default. Python won't recognize a .dylib as a module,
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# but it will recognize a .so
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set_target_properties( ${CLIENT_LIB} PROPERTIES SUFFIX ".so")
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set_target_properties( ${SERVER_LIB} PROPERTIES SUFFIX ".so")
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endif()
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set_target_properties( ${CLIENT_LIB} PROPERTIES
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LIBRARY_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/../../python )
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set_target_properties( ${SERVER_LIB} PROPERTIES
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LIBRARY_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/../../python )
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#############################################################################
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# For some reason, Xcode is too dumb to understand the -isystem flag and thus
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# borks on warnings in Boost.
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if ( USE_DEV_FLAGS AND ( CMAKE_COMPILER_IS_GNUCXX OR COMPILER_IS_CLANG ) AND
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NOT CMAKE_GENERATOR_IS_XCODE )
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# We want all warnings, and warnings should be treated as errors
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set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Werror" )
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endif()
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#############################################################################
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# We want warnings if we accidentally use C++11 features
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# We can't use this warning on FreeBSD because std headers on that OS are dumb.
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# See here: https://github.com/Valloric/YouCompleteMe/issues/260
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if ( USE_DEV_FLAGS AND COMPILER_IS_CLANG AND NOT CMAKE_GENERATOR_IS_XCODE AND
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NOT SYSTEM_IS_FREEBSD )
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set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wc++98-compat" )
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endif()
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#############################################################################
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if( SYSTEM_IS_SUNOS )
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# SunOS needs this setting for thread support
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set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthreads" )
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endif()
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add_subdirectory( tests )
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