send-email: respect in-reply-to regardless of threading

diff --git a/Makefile b/Makefile
index becd008e04c265f7a822eeb74cfe218491710c7e..186a8efd1b74a0510e67e75a6191206a1a6818c2 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1329,7 +1329,16 @@ check-sha1:: test-sha1$X
        ./test-sha1.sh
 
 check: common-cmds.h
-       for i in *.c; do sparse $(ALL_CFLAGS) $(SPARSE_FLAGS) $$i || exit; done
+       if sparse; \
+       then \
+               for i in *.c; \
+               do \
+                       sparse $(ALL_CFLAGS) $(SPARSE_FLAGS) $$i || exit; \
+               done; \
+       else \
+               echo 2>&1 "Did you mean 'make test'?"; \
+               exit 1; \
+       fi
 
 remove-dashes:
        ./fixup-builtins $(BUILT_INS) $(PROGRAMS) $(SCRIPTS)