disable new ABI (can't catch ios_base::failure with new ABI)

CMakeLists.txt

@@ -104,11 +104,13 @@ if(MINGW)
     set(CMAKE_SHARED_LIBRARY_PREFIX "")
 endif(MINGW)
 
-# enable Qt Widgets GUI, enable capslock detection
+# enable Qt Widgets GUI
+# disable new ABI (can't catch ios_base::failure with new ABI)
 add_definitions(
     -DGUI_QTWIDGETS
     -DMODEL_UNDO_SUPPORT
     -DPLATFORM_SPECIFIC_CAPSLOCK_DETECTION
+    -D_GLIBCXX_USE_CXX11_ABI=0
 )
 
 # check required Qt 5 modules

general.pri

@@ -7,6 +7,9 @@ RCC_DIR = ./res
 QMAKE_CXXFLAGS += -std=c++11
 QMAKE_LFLAGS += -std=c++11
 
+# disable new ABI (can't catch ios_base::failure with new ABI)
+DEFINES += _GLIBCXX_USE_CXX11_ABI=0
+
 # variables to check target architecture
 win32-g++:QMAKE_TARGET.arch = $$QMAKE_HOST.arch
 win32-g++-32:QMAKE_TARGET.arch = x86