In particular, xrefr 1.1.0 now exits with a non-zero exit status if there are any warnings reported. This makes `make xref` fail appropriately.
@@ -15,7 +15,7 @@ endif
XREFR ?= $(CURDIR)/xrefr
export XREFR
-XREFR_URL ?= https://github.com/inaka/xref_runner/releases/download/0.2.2/xrefr
+XREFR_URL ?= https://github.com/inaka/xref_runner/releases/download/1.1.0/xrefr
# Core targets.