YouCompleteMe/cpp/ycm/CMakeLists.txt
Strahinja Val Markovic b1bba2e201 Changing copyright headers from me to Google
When I initially released this project, I released it under my own copyright. I
have since then worked on it in my 20% time at Google (and want to continue
doing this) and my life becomes much simpler if the copyright is Google's.

From the perspective of how this project is run and managed, **NOTHING**
changes. YCM is not a Google product, merely a project run by someone who just
happens to work for Google.

Please note that the license of the project is **NOT** changing.

People sending in future pull requests will have to sign the Google
[CLA](https://developers.google.com/open-source/cla/individual) (you can sign
online at the bottom of that page) before those pull requests could be merged
in. People who sent in pull requests that were merged in the past will get an
email from me asking them to sign the CLA as well.
2014-01-13 11:08:43 -08:00

361 lines
13 KiB
CMake

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