qt5base-lts/mkspecs/features/unix/separate_debug_info.prf

have_target:!static:!isEmpty(QMAKE_OBJCOPY) {
    qnx {
        debug_info_suffix = sym
        debug_info_keep = --keep-file-symbols
        debug_info_strip = --strip-debug -R.ident
    } else {
        debug_info_suffix = debug
        debug_info_keep = --only-keep-debug
        debug_info_strip = --strip-debug
    }
    QMAKE_SEPARATE_DEBUG_INFO = test -z \"$(DESTDIR)\" || cd \"$(DESTDIR)\" ; targ=`basename $(TARGET)`; $$QMAKE_OBJCOPY $$debug_info_keep \"\$\$targ\" \"\$\$targ.$$debug_info_suffix\" && $$QMAKE_OBJCOPY $$debug_info_strip \"\$\$targ\" && $$QMAKE_OBJCOPY --add-gnu-debuglink=\"\$\$targ.$$debug_info_suffix\" \"\$\$targ\" && chmod -x \"\$\$targ.$$debug_info_suffix\"
    QMAKE_INSTALL_SEPARATE_DEBUG_INFO = test -z \"$(DESTDIR)\" || cd \"$(DESTDIR)\" ; $(INSTALL_FILE) `basename $(TARGET)`.$$debug_info_suffix $(INSTALL_ROOT)/\$\$target_path/

    !isEmpty(QMAKE_POST_LINK):QMAKE_POST_LINK = $$escape_expand(\\n\\t)$$QMAKE_POST_LINK
    QMAKE_POST_LINK = $$QMAKE_SEPARATE_DEBUG_INFO $$QMAKE_POST_LINK
    silent:QMAKE_POST_LINK = @echo creating $@.$$debug_info_suffix && $$QMAKE_POST_LINK

    isEmpty(DESTDIR) {
        target.targets += "`basename $(TARGET)`.$$debug_info_suffix"
        QMAKE_DISTCLEAN += "`basename $(TARGET)`.$$debug_info_suffix"
    } else {
        target.targets += "$(DESTDIR)/`basename $(TARGET)`.$$debug_info_suffix"
        QMAKE_DISTCLEAN += "$(DESTDIR)/`basename $(TARGET)`.$$debug_info_suffix"
    }
}