CMake Warning: Manually-specified variables were not used by the project: CMAKE_LD_FLAGS /var/pisi/obconf-qt-0.16.5-20/work/obconf-qt-0.16.5/src/maindialog.cpp: In destructor ‘virtual Obconf::MainDialog::~MainDialog()’: /var/pisi/obconf-qt-0.16.5-20/work/obconf-qt-0.16.5/src/maindialog.cpp:61:28: warning: cast between incompatible function types from ‘void (*)(gpointer)’ {aka ‘void (*)(void*)’} to ‘GFunc’ {aka ‘void (*)(void*, void*)’} [-Wcast-function-type] 61 | g_list_foreach(themes, (GFunc)g_free, NULL); | ^~~~~~~~~~~~~ /var/pisi/obconf-qt-0.16.5-20/work/obconf-qt-0.16.5/src/theme.cpp: In member function ‘void Obconf::MainDialog::theme_load_all()’: /var/pisi/obconf-qt-0.16.5-20/work/obconf-qt-0.16.5/src/theme.cpp:55:28: warning: cast between incompatible function types from ‘void (*)(gpointer)’ {aka ‘void (*)(void*)’} to ‘GFunc’ {aka ‘void (*)(void*, void*)’} [-Wcast-function-type] 55 | g_list_foreach(themes, (GFunc)g_free, NULL); | ^~~~~~~~~~~~~