rem: free(fwin);
add: wfree(fwin);
context: wFrameWindowDestroy(WFrameWindow *fwin){    int i;        if (fwin->left_button)	wCoreDestroy(fwin->left_button);    #ifdef XKB_BUTTON_HINT    if (fwin->language_button)    wCoreDestroy(fwin->language_button);#endif        if (fwin->right_button)	wCoreDestroy(fwin->right_button);        if (fwin->resizebar)	wCoreDestroy(fwin->resizebar);        if (fwin->titlebar)	wCoreDestroy(fwin->titlebar);        RemoveFromStackList(fwin->core);        wCoreDestroy(fwin->core);        if (fwin->title)	free(fwin->title);        for (i=0; i < (fwin->flags.single_texture ? 1 : 3); i++) {	FREE_PIXMAP(fwin->title_back[i]);        if (wPreferences.new_style) {	    FREE_PIXMAP(fwin->lbutton_back[i]);#ifdef XKB_BUTTON_HINT	    FREE_PIXMAP(fwin->languagebutton_back[i]);#endif	    FREE_PIXMAP(fwin->rbutton_back[i]);        }    }        free(fwin);}