Bruno, this command fails: gnulib-tool --test --with-tests isnanl-nolibm
with an error: ../../gltests/test-isnanl.h:24:17: error: nan.h: No such file or directory See: http://autobuild.josefsson.org/gnulib/log-200903010845939381000.txt How about this patch? Inspired by the isnanl-tests module. /Simon diff --git a/modules/isnanl-nolibm-tests b/modules/isnanl-nolibm-tests index a2e241c..f9414e3 100644 --- a/modules/isnanl-nolibm-tests +++ b/modules/isnanl-nolibm-tests @@ -1,6 +1,7 @@ Files: tests/test-isnanl-nolibm.c tests/test-isnanl.h +tests/nan.h Depends-on: float