+#base-java-sources : $(shell find org.argeo.* -name '*.java')
+
+#base-java-classes : $(shell find org.argeo.* -name '*.class')
+
+# each dir depends on its package directories
+#$(SDK_SRC_BASE)/% : $(shell find */src -type f | sed "s%/[^/]*$%%" | sort -u)
+
+# non empty package dirs
+#$(SDK_SRC_BASE)/*/src/% : $(shell grep --no-filename ^import '%/*.java' | sed 's/import //g' | sed 's/static //g' | sed 's/\.[A-Za-z0-9_]*;//' | sed 's/\.[A-Z].*//' | sort | uniq)
+
+# convert dir to package
+#$(shell find %/src -mindepth 1 -type d -printf '%P\n' | sed "s/\//\./g")
+
+# all packages
+# grep --no-filename ^import src/org/argeo/api/uuid/*.java | sed "s/import //g" | sed "s/static //g" | sed "s/\.[A-Za-z0-9_]*;//" | sed "s/\.[A-Z].*//" | sort | uniq
+