-# Need to set CFLAGS and LDFLAGS here. sb-posix, sb-grovel, and
-# sb-bsd-sockets depends upon these being set on x86_64. Setting these
-# in their Makefile's is not adequate since their asd files are
-# invoked when loaded from other modules which don't require these
-# environmental values in their Makefile's.
+# We need to extend flags to the C compiler and the linker
+# here. sb-posix, sb-grovel, and sb-bsd-sockets depends upon these
+# being set on x86_64. Setting these in their Makefiles is not
+# adequate since, while we're building contrib, they can be compiled
+# directly via ASDF from a non-C-aware module which has these tricky
+# ones as dependencies.