scripts: correctly warn when the local tarballs directory does not exist
Warn about a missing local tarball directory, only if it was configured.
Avoid the spurious message:
Directory '${CT_LOCAL_TARBALLS_DIR}' does not exist.
Will not save downloaded tarballs to local storage.
Thanks to "Pedro I. Sanchez" <psanchez@colcan.ca> for pointing out the
issue:
http://sourceware.org/ml/crossgcc/2009-12/msg00011.html
1 --- binutils/libiberty/Makefile.in.mps 2004-05-13 15:53:17.000000000 +0200
2 +++ binutils/libiberty/Makefile.in 2004-05-13 15:52:53.000000000 +0200
3 @@ -224,6 +224,7 @@ $(TARGETLIB): $(REQUIRED_OFILES) $(EXTRA
4 $(AR) $(AR_FLAGS) $(TARGETLIB) \
5 $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS); \
6 $(RANLIB) $(TARGETLIB); \
7 + cp $(TARGETLIB) ../ ; \