Makefile.in: Add the shellcheck target
Run shellcheck on the build.sh and the build_matrix.sh scripts.
(using 'gcc' format: GCC compatible output. See the shellcheck man page)
[skip ci]
(cherry picked from commit 657d672cb672b80d4cd7a18a6f746968d9d44807)
diff --git a/Makefile.in b/Makefile.in
index f7589dd..01952c8 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -475,3 +475,6 @@
depend:
$(MKDEP) -c "$(CC)" -m "$(DEPENDENCY_CFLAG)" -s "$(srcdir)" $(DEFS) $(INCLS) $(SRC) $(LIBNETDISSECT_SRC)
+
+shellcheck:
+ shellcheck -f gcc build.sh build_matrix.sh