--- /dev/null
+# -*- makefile -*-
+
+dir := performance-test
+
+include $(dir)/version.sh
+
+CORPUS_NAME := notmuch-email-corpus-$(PERFTEST_VERSION).tar.xz
+TXZFILE := ${dir}/download/${CORPUS_NAME}
+SIGFILE := ${TXZFILE}.asc
+TEST_SCRIPT := ${dir}/notmuch-perf-test
+DEFAULT_URL := http://notmuchmail.org/releases/${CORPUS_NAME}
+
+perf-test: setup-perf-test all
+ $(TEST_SCRIPT) $(OPTIONS)
+
+.PHONY: download-corpus setup-perf-test
+
+# Note that this intentionally does not depend on download-corpus.
+setup-perf-test: $(TXZFILE)
+ gpg --verify $(SIGFILE)
+
+$(TXZFILE):
+ @printf "\nPlease download ${TXZFILE} using:\n\n"
+ @printf "\t%% make download-corpus\n\n"
+ @echo or see http://notmuchmail.org/corpus for download locations
+ @echo
+ @false
+
+download-corpus:
+ wget -O ${TXZFILE} ${DEFAULT_URL}
+
+CLEAN := $(CLEAN) $(dir)/tmp.*