document the gpl modules used by gnulib

diff --git a/cfg.mk b/cfg.mk
index 5c87889d5a8b7fc973dc924cfc2fa89dfab345ac..f410ffebda33bb00d833c83b3757c3d6720df581 100644 (file)
--- a/cfg.mk
+++ b/cfg.mk
@@ -72,6 +72,8 @@ update-po: refresh-po
 bootstrap: autoreconf
        ./configure $(CFGFLAGS)
 
+# The only non-lgpl modules used are: gettime progname timespec. Those
+are not used (and must not be used) in the library)
 glimport:
        gnulib-tool --add-import