Log Message:
wm/qvwm: Need -lICE and -lSM on non-SunOS platforms too.

Resolves:

c++  -O2 -I/pkg/2024Q4/include   -fpermissive -Wl,-zrelro -L/pkg/2024Q4/lib \ 
-Wl,-R/pkg/2024Q4/lib -o qvwm  main.o qvwm.o frame.o titlebar.o window.o move.o  \ 
resize.o resize_sp.o rearrange.o focus.o focus_mgr.o util.o timer.o  function.o \ 
debug.o exec.o event.o colormap.o configure.o property.o  key.o parse.o \ 
yaccsrc.o lexsrc.o qvwmrc.o mwm.o gnome.o session.o  screen_saver.o desktop.o \ 
icon.o switcher.o paging.o info_display.o  accessory.o menu.o menu_func.o \ 
startmenu.o taskbar.o tbutton.o  indicator.o pager.o mini.o image.o \ 
pixmap_image.o extra_image.o  anim_image.o button.o string_button.o \ 
ctrl_button.o fbutton.o sbutton.o  dialog.o system_dialog.o radio_button.o \ 
radio_set.o exit_dialog.o  confirm_dialog.o tooltip.o audio.o audio_wav.o \ 
audio_au.o audiodev.o  audiodev_alsa.o audiodev_esd.o audiodev_oss.o \ 
audiodev_sun.o  remote_cmd.o -lfl -lXss -lXpm -lXext -lX11
ld: event.o: in function `Event::MainLoop()':
event.cc:(.text+0x1d4e): undefined reference to `IceProcessMessages'
ld: session.o: in function `Session::ShutdownCancelled(_SmcConn*)':
session.cc:(.text+0x98): undefined reference to `SmcSaveYourselfDone'
[...]