Merge branch 'jh/trace2'

diff --git a/t/perf/perf-lib.sh b/t/perf/perf-lib.sh
index 9cdccba2228f685849cdd8b744be4ecd65991a98..b58a43ea4364a8e5a2c5b9af39b41ec9f0b94f5b 100644 (file)
--- a/t/perf/perf-lib.sh
+++ b/t/perf/perf-lib.sh
@@ -27,6 +27,17 @@ TEST_NO_MALLOC_CHECK=t
 
 . ../test-lib.sh
 
+if test -n "$GIT_TEST_INSTALLED" -a -z "$PERF_SET_GIT_TEST_INSTALLED"
+then
+       error "Do not use GIT_TEST_INSTALLED with the perf tests.
+
+Instead use:
+
+    ./run <path-to-git> -- <tests>
+
+See t/perf/README for details."
+fi
+
 # Variables from test-lib that are normally internal to the tests; we
 # need to export them for test_perf subshells
 export TEST_DIRECTORY TRASH_DIRECTORY GIT_BUILD_DIR GIT_TEST_CMP