(check-programs-vs-x): Fail if $(programs) is empty.
programs = \
echo 'spy:;@echo $$(all_programs)' \
- | MAKEFLAGS= $(MAKE) -s -C $(srcdir)/../src -f Makefile -f - spy \
+ | MAKEFLAGS= $(MAKE) -s -C ../src -f Makefile -f - spy \
| fmt -1 | $(ASSORT) -u | grep -v '\['
.PHONY: check-programs-vs-x
check-programs-vs-x:
+ test "$(programs)" && : || exit 1
for p in `$(programs)`; do \
test $$p = ginstall && p=install || : ; \
test -f $(srcdir)/$$p.x \