used. If not specified manually, it equals to BUILD_OS.
@end defvar
+@defvar QT_SUBDIRS
+ Lists subdirectories with QT project (.pro) file. OMK will generate
+ there @file{Makefile} by calling @command{qmake} with correct
+ parameters to interface QT application to the rest of the compilation
+ tree. Then @command{make} is called there to compile QT
+ application. Variable @samp{QTDIR} must be set to the directory with
+ QT instalation (e.g. /usr/share/qt4 on Debian).
+@end defvar
@node System-Less, RTEMS, Linux, Properties of Specific Makefile.rules