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https://git.lyx.org/repos/lyx.git
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889d10cda3
Since qt5_use_modules() is removed from QT5 (as spotted by Jürgen Spitzmüller), we had to create own version of this macro. According to this page: http://doc.qt.io/qt-5/cmake-manual.html the way to replace use of qt5_use_modules() for module "_mod" and target "_target" is to use 1.) cmake_minimum_required(VERSION 3.1.0) 2.) find_package(Qt5${_mod} CONFIG REQUIRED) 3.) target_link_libraries(${_target} Qt5::${_mod}) The last one sets all reguired libraries, compile flags and needed includes for the ${_target} Disable possible warn about not known policy Extend Clang compiler detection to cover Apple CLang (cherry picked from commit d6b21e20e254c96d963c6ab4988ad635f8f4e44b) (cherry picked from commit 72a2f922393f8029b658fffe3c5a2e3e2c81ac1d) (cherry picked from commit 6343452a7397a5ac4b84af30d61c4d7fca5afbc1) (cherry picked from commit cb08d4a879bf63222a4462308b614d3209607737) (cherry picked from commit 1bf4d7b0fc2bc4c700e7cecc1e6e3c7faf4f03a5)
146 lines
4.1 KiB
CMake
146 lines
4.1 KiB
CMake
# This file is part of lyx.
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#
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# The module comes from the enblend project, slightly modified.
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#
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# Check if compiler supports C++11 features
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# and which compiler switches are necessary
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# CXX11_FLAG : contains the necessary compiler flag
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#
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# Copyright (c) 2013 Thomas Modes <tmodes@@users.sourceforge.net>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# This file 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 lyx; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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INCLUDE(CheckCXXSourceCompiles)
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INCLUDE(FindPackageHandleStandardArgs)
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if (CMAKE_CXX_COMPILER_ID MATCHES "^([cC]lang|AppleClang)$")
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set(CXX11_FLAG_CANDIDATES "--std=c++11 -Wno-deprecated-register")
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else()
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if (CYGWIN)
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set(CXX11_FLAG_CANDIDATES "--std=gnu++11")
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else()
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if (MSVC)
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# MSVC does not have a general C++11 flag, one can only switch off
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# MS extensions with /Za in general or by extension with /Zc.
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# Use an empty flag to ensure that CXX11_STD_REGEX is correctly set.
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set(CXX11_FLAG_CANDIDATES "noflagneeded")
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else()
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set(CXX11_FLAG_CANDIDATES
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"--std=c++14"
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"--std=c++11"
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"--std=gnu++11"
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"--std=gnu++0x"
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)
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endif()
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endif()
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endif()
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# sample openmp source code to test
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SET(CXX11_TEST_SOURCE
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"
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template <typename T>
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struct check
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{
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static_assert(sizeof(int) <= sizeof(T), \"not big enough\");
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};
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typedef check<check<bool>> right_angle_brackets;
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class TestDeleted
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{
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public:
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TestDeleted() = delete;
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};
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int a;
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decltype(a) b;
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typedef check<int> check_type;
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check_type c;
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check_type&& cr = static_cast<check_type&&>(c);
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auto d = a;
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int main() {
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return 0;
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};
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")
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# The following code snipped taken from example in http://stackoverflow.com/questions/8561850/compile-stdregex-iterator-with-gcc
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set(REGEX_TEST_SOURCE
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"
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#include <regex>
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#include <iostream>
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#include <string.h>
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typedef std::regex_iterator<const char *> Myiter;
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int main()
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{
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const char *pat = \"axayaz\";
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Myiter::regex_type rx(\"a\");
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Myiter next(pat, pat + strlen(pat), rx);
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Myiter end;
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return (0);
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}
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")
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# check c compiler
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set(SAFE_CMAKE_REQUIRED_QUIET ${CMAKE_REQUIRED_QUIET})
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set(CMAKE_REQUIRED_QUIET ON)
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SET(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
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FOREACH(FLAG ${CXX11_FLAG_CANDIDATES})
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IF(NOT "${FLAG}" STREQUAL "noflagneeded")
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SET(CMAKE_REQUIRED_FLAGS "${FLAG}")
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ENDIF()
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UNSET(CXX11_FLAG_DETECTED CACHE)
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CHECK_CXX_SOURCE_COMPILES("${CXX11_TEST_SOURCE}" CXX11_FLAG_DETECTED)
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IF(CXX11_FLAG_DETECTED)
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SET(CXX11_FLAG "${FLAG}")
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message(STATUS "CXX11_FLAG_DETECTED = \"${FLAG}\"")
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set(LYX_USE_CXX11 1)
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check_cxx_source_compiles("${REGEX_TEST_SOURCE}" CXX_STD_REGEX_DETECTED)
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if (CXX_STD_REGEX_DETECTED)
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message(STATUS "Compiler supports std_regex")
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set(CXX11_STD_REGEX ON)
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else()
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message(STATUS "Compiler does not support std_regex")
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set(CXX11_STD_REGEX OFF)
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endif()
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break()
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ENDIF()
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ENDFOREACH()
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SET(CMAKE_REQUIRED_FLAGS "${SAFE_CMAKE_REQUIRED_FLAGS}")
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set(CMAKE_REQUIRED_QUIET ${SAFE_CMAKE_REQUIRED_QUIET})
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# handle the standard arguments for find_package
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(CXX11Compiler DEFAULT_MSG CXX11_FLAG)
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IF("${CXX11_FLAG}" STREQUAL "noflagneeded")
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SET(CXX11_FLAG "")
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ENDIF()
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MARK_AS_ADVANCED(CXX11_FLAG CXX11_STD_REGEX)
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