perf: accommodate for MacOSX

diff --git a/t/perf/perf-lib.sh b/t/perf/perf-lib.sh
index 18c363ea7f384ee625b0efc162dc081f51a3780f..773f955d4a251e768b8bc39f7e05161936fda1f5 100644 (file)
--- a/t/perf/perf-lib.sh
+++ b/t/perf/perf-lib.sh
@@ -127,11 +127,15 @@ test_checkout_worktree () {
 # Performance tests should never fail.  If they do, stop immediately
 immediate=t
 
+# Perf tests require GNU time
+case "$(uname -s)" in Darwin) GTIME="${GTIME:-gtime}";; esac
+GTIME="${GTIME:-/usr/bin/time}"
+
 test_run_perf_ () {
        test_cleanup=:
        test_export_="test_cleanup"
        export test_cleanup test_export_
-       /usr/bin/time -f "%E %U %S" -o test_time.$i "$SHELL" -c '
+       "$GTIME" -f "%E %U %S" -o test_time.$i "$SHELL" -c '
 . '"$TEST_DIRECTORY"/test-lib-functions.sh'
 test_export () {
        [ $# != 0 ] || return 0