Check path of Qt tools if qtchooser is detected

[lyx.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 74d0ac89526e79e328f8a6882c8173a329d46ef9..7fd8b26f764b94a56aa9b8e7a1966548be3137a2 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -139,6 +139,7 @@ LYX_OPTION(INSTALL_PREFIX   "Install path for LyX" OFF ALL)
 LYX_OPTION(BUNDLE           "Build bundle  (experimental) " OFF ALL)
 LYX_OPTION(ENABLE_URLTESTS  "Enable for URL tests" OFF ALL)
 LYX_OPTION(ENABLE_EXPORT_TESTS "Enable for export tests" OFF ALL)
+LYX_OPTION(ENABLE_KEYTESTS  "Enable for keytests" OFF ALL)
 LYX_OPTION(ASAN             "Use address sanitizer" OFF ALL)
 LYX_COMBO(USE_QT            "Use Qt version as frontend" QT4 QT5)
 #LYX_OPTION(3RDPARTY_BUILD   "Build 3rdparty libs" OFF ALL)
@@ -571,7 +572,15 @@ if(NOT MSVC)
        if(NOT LYX_QUIET)
                set(CMAKE_VERBOSE_MAKEFILE ON)
        endif()
-    set(LYX_CXX_FLAGS "-Wall -Wunused-parameter ${LYX_GCC11_MODE}")
+       set(LYX_CXX_FLAGS "-Wall -Wunused-parameter ${LYX_GCC11_MODE}")
+       if(LYX_CXX_FLAGS MATCHES "\\+\\+(14|11|98)")
+         # Thanks to Brad King <brad.king@kitware.com>
+         # for the pointer to https://cmake.org/cmake/help/v3.6/variable/CMAKE_CXX_STANDARD.html
+         # This allows us to use QT5.7 with recent g++ (version >= 4.9) compilers
+         # and still use our own c++ extension tests
+         set(CMAKE_CXX_STANDARD ${CMAKE_MATCH_1})
+         message(STATUS "CMAKE_CXX_STANDARD set to ${CMAKE_CXX_STANDARD}")
+       endif()
        if(LYX_STDLIB_DEBUG)
                set(LYX_CXX_FLAGS "${LYX_CXX_FLAGS} -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC")
        endif()