Coverity scan fixes

Makefile

@@ -1,18 +1,38 @@
-# Recursively build the directories below, in one of modes
-# fips, nonfips, combined
-# $Format:%h%d$
-all:
+#
+# Recursively build the directories below
+# @version $Format:%h%d$
+#
+
+ifneq (,$(findstring clean,$(MAKECMDGOALS)))
+  SUBARGS:=clean
+endif
+
+default: all
+
+.PHONY: all libs tests apps clean
+
+all: libs tests apps
+
+libs:
 	$(MAKE) --directory=core
 	$(MAKE) --directory=crypto
 	$(MAKE) --directory=matrixssl
 
-test:
+tests:
 	$(MAKE) --directory=crypto/test
 	$(MAKE) --directory=matrixssl/test
 
+# Note apps is also a direct subdirectory
+apps:
+	$(MAKE) --directory=apps/ssl
+	$(MAKE) --directory=apps/dtls
+
 clean:
 	$(MAKE) clean --directory=core
 	$(MAKE) clean --directory=crypto
-	$(MAKE) clean --directory=crypto/test
 	$(MAKE) clean --directory=matrixssl
+	$(MAKE) clean --directory=crypto/test
 	$(MAKE) clean --directory=matrixssl/test
+	$(MAKE) clean --directory=apps/ssl
+	$(MAKE) clean --directory=apps/dtls
+