}
test_set_prereq () {
+ if test -n "$GIT_TEST_FAIL_PREREQS"
+ then
+ case "$1" in
+ # The "!" case is handled below with
+ # test_unset_prereq()
+ !*)
+ ;;
+ # (Temporary?) whitelist of things we can't easily
+ # pretend not to support
+ SYMLINKS)
+ ;;
+ # Inspecting whether GIT_TEST_FAIL_PREREQS is on
+ # should be unaffected.
+ FAIL_PREREQS)
+ ;;
+ *)
+ return
+ esac
+ fi
+
case "$1" in
!*)
test_unset_prereq "${1#!}"