rtmes: Add fallback rule to create timestamp

When the build did not contain any library (such as in test suite), the
build failed because there was no rule to create the timestamp.

diff --git a/snippets/rtems.omk b/snippets/rtems.omk
index d42cfe20f8b209d03ed0a8ec80888c8d59027f63..28d57f3128cd936ddb0c538826f0532ca93c31db 100644 (file)
--- a/snippets/rtems.omk
+++ b/snippets/rtems.omk
@@ -260,7 +260,8 @@ $(USER_LIB_DIR)/lib$(1).a: $$($(1)_OBJS)
        @touch $(USER_LIB_DIR)/timestamp
 endef
 
-
+$(USER_LIB_DIR)/timestamp:
+       $(Q)touch $@
 
 # Syntax: $(call SOLIB_template,<library-name>)
 define SOLIB_template