only subdirectories of the directory containing @file{Makefile.omk}.
@end defvar
+@defvar{SOURCES_DIR}
+This variable is set internally by OMK and its value is the absolute
+path to the directory with compiled sources. It can be used if you need
+to refer to sources files in some custom constructs in
+@file{Makefile.omk}.
+@example
+@verbatim
+include_HEADERS = $(notdir $(wildcard $(SOURCES_DIR)/*.h))
+@end verbatim
+@end example
+@end defvar
+
+@defvar{MAKERULES_DIR}
+This variable is set internally by OMK and its value is the absolute
+path to the directory containing @file{Makefile.rules} currently used
+during compilation.
+@end defvar
+
@node Properties of Specific Makefile.rules, Running OMK under Windows OS, Advanced OMK Features, OMK User's Manual
@section Properties of Specific Makefile.rules
--- /dev/null
+# Generic directory or leaf node makefile for OCERA make framework
+
+ifndef MAKERULES_DIR
+MAKERULES_DIR := $(shell ( old_pwd="" ; while [ ! -e Makefile.rules ] ; do if [ "$$old_pwd" == `pwd` ] ; then exit 1 ; else old_pwd=`pwd` ; cd -L .. 2>/dev/null ; fi ; done ; pwd ) )
+endif
+
+ifeq ($(MAKERULES_DIR),)
+all : default
+.DEFAULT::
+ @echo -e "\nThe Makefile.rules has not been found in this or partent directory\n"
+else
+include $(MAKERULES_DIR)/Makefile.rules
+endif
+
+print_vars:
+ echo $(COMPILED_DIR)
\ No newline at end of file