palmtop.bbclass: document what this class does and automatically set up CONFIG=thread...

to yes

diff --git a/classes/palmtop.bbclass b/classes/palmtop.bbclass
index 1ed0206..fb2f539 100644 (file)
--- a/classes/palmtop.bbclass
+++ b/classes/palmtop.bbclass
@@ -1,9 +1,15 @@
-# basically a placeholder for something more fancy
-# for now, just declare some things
+# this build class sets up qmake variables to
+#   * build using the Qt Windowing System (QWS)
+#   * use qt
+#   * link against supc++ instead of stdc++  
+#   * use threads, if requested via PALMTOP_USE_MULTITHREADED_QT = "yes"
+# inherit this class to build programs against libqpe
+# inherit opie if you want to build programs against libopie2
 
 inherit qmake
 
-EXTRA_QMAKEVARS_POST_append = " DEFINES+=QWS LIBS+=-lqpe CONFIG+=qt CONFIG+=thread LIBS-=-lstdc++ LIBS+=-lsupc++"
+EXTRA_QMAKEVARS_POST += "DEFINES+=QWS LIBS+=-lqpe CONFIG+=qt LIBS-=-lstdc++ LIBS+=-lsupc++"
+EXTRA_QMAKEVARS_POST += "${@base_conditional("PALMTOP_USE_MULTITHREADED_QT", "yes", "CONFIG+=thread", "",d)}'
 
 DEPENDS_prepend = "virtual/libqpe1 uicmoc-native "