120 lines
4.3 KiB
CMake
120 lines
4.3 KiB
CMake
# Copyright (C) 2011, 2012 Strahinja Val Markovic <val@markovic.io>
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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( YouCompleteMe )
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option( UNIVERSAL "Build universal mac binary" OFF )
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if ( CMAKE_GENERATOR STREQUAL Xcode )
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set( CMAKE_GENERATOR_IS_XCODE true )
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endif()
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if ( ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD" )
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set( SYSTEM_IS_FREEBSD true )
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endif()
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if ( ${CMAKE_SYSTEM_NAME} MATCHES "SunOS" )
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set( SYSTEM_IS_SUNOS true )
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endif()
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# Check if platform is 64 bit
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if( CMAKE_SIZEOF_VOID_P EQUAL 4 )
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set( 64_BIT_PLATFORM 0 )
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else()
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set( 64_BIT_PLATFORM 1 )
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endif()
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# Turning on this flag tells cmake to emit a compile_commands.json file.
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# This file can be used to load compilation flags into YCM. See here for more
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# details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
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set( CMAKE_EXPORT_COMPILE_COMMANDS 1 )
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# This is needed so that on macs, the library is built in both 32 bit and 64 bit
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# versions. Without this python might refuse to load the module, depending on
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# how python was built.
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# On Mac, boost needs to be compiled universal as well, if used instead of the
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# included BoostParts lib. For brew, that's
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# "brew install boost --universal"
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# If the user chose to use the system libclang.dylib (or the libclang.dylib
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# binary downloaded from llvm.org) on a mac, then we don't specify universal
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# binary building since the system libclang on macs is not universal (and thus
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# linking would fail with universal).
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if ( UNIVERSAL AND NOT USE_SYSTEM_LIBCLANG )
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set( CMAKE_OSX_ARCHITECTURES "i386;x86_64" )
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endif()
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if ( CMAKE_CXX_COMPILER_ID STREQUAL "Clang" )
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set( COMPILER_IS_CLANG true )
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# The Travis CI build machines don't have libc++ installed
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if ( NOT DEFINED ENV{TRAVIS} )
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set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++" )
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endif()
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endif()
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# Force release build by default, speed is of the essence
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if ( NOT CMAKE_BUILD_TYPE )
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set( CMAKE_BUILD_TYPE Release )
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endif()
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# Determining the presence of C++11 support in the compiler
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set( CPP11_AVAILABLE false )
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if ( CMAKE_COMPILER_IS_GNUCXX )
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execute_process(
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COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
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if ( GCC_VERSION VERSION_GREATER 4.6 OR GCC_VERSION VERSION_EQUAL 4.6 )
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set( CPP11_AVAILABLE true )
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endif()
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elseif( COMPILER_IS_CLANG )
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set( CPP11_AVAILABLE true )
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set( CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LANGUAGE_STANDARD "c++11" )
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set( CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY "libc++" )
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endif()
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# For MSVC enable UNICODE and compilation on multiple processors
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if( MSVC )
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add_definitions( /DUNICODE /D_UNICODE /Zc:wchar_t- )
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set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP" )
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endif()
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# When used with Clang, adding the -std=c++0x flag to CMAKE_CXX_FLAGS will cause
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# the compiler to output a warning during linking:
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# clang: warning: argument unused during compilation: '-std=c++0x'
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# This is caused by cmake passing this flag to the linking stage which it
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# shouldn't do. It's ignored so it does no harm, but the warning is annoying and
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# there's no way around the problem (the flag is correctly used during the
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# compilation stage). We could use add_definitions(-std=c++0x), but this will
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# break the llvm build since the flag will then be used when compiling C code
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# too. Sadly there's no way around the warning.
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if ( CPP11_AVAILABLE )
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message( "Your C++ compiler supports C++11, compiling in that mode." )
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# Cygwin needs its hand held a bit; see issue #473
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if ( CYGWIN AND CMAKE_COMPILER_IS_GNUCXX )
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set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++0x" )
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else()
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set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x" )
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endif()
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else()
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message(
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"Your C++ compiler does NOT support C++11, compiling in C++03 mode." )
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endif()
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add_subdirectory( BoostParts )
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add_subdirectory( ycm )
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