Index: src/libcfa/Makefile.am
===================================================================
--- src/libcfa/Makefile.am	(revision 36463e21f08098ed15fc49c4083fb7ca58daf44a)
+++ src/libcfa/Makefile.am	(revision 4f18de345b577edd78d514049636511fccecfac1)
@@ -64,6 +64,13 @@
 
 # extensionless header files are overridden by -o flag in default makerule => explicitly override default rule to silently do nothing
+# SKULLDUGGERY in order to make sure this isn't called make the rule always fail but also create a rule for headers
 % : %.c
-	@true
+	echo "Dummy rule, should never be called"
+	false
+
+# This rule should always match headers and since it has no prerequisite it will never be called
+$(addprefix $(srcdir)/,$(headers)):
+	echo "Dummy rule, should never be called"
+	false
 
 concurrency/libcfa_a-invoke.o : concurrency/invoke.c
Index: src/libcfa/Makefile.in
===================================================================
--- src/libcfa/Makefile.in	(revision 36463e21f08098ed15fc49c4083fb7ca58daf44a)
+++ src/libcfa/Makefile.in	(revision 4f18de345b577edd78d514049636511fccecfac1)
@@ -1676,6 +1676,13 @@
 
 # extensionless header files are overridden by -o flag in default makerule => explicitly override default rule to silently do nothing
+# SKULLDUGGERY in order to make sure this isn't called make the rule always fail but also create a rule for headers
 % : %.c
-	@true
+	echo "Dummy rule, should never be called"
+	false
+
+# This rule should always match headers and since it has no prerequisite it will never be called
+$(addprefix $(srcdir)/,$(headers)):
+	echo "Dummy rule, should never be called"
+	false
 
 concurrency/libcfa_a-invoke.o : concurrency/invoke.c