Doc: auto-detect changed build flags

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 8665b0a9b6186a7ad17889213f5225265c9f27d1..4e79e140c90ba5aa8cdbe7daeafba45765cecd8e 100644 (file)
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -1327,7 +1327,11 @@ then
        fi
 fi
 
-# Provide an implementation of the 'yes' utility
+# Provide an implementation of the 'yes' utility; the upper bound
+# limit is there to help Windows that cannot stop this loop from
+# wasting cycles when the downstream stops reading, so do not be
+# tempted to turn it into an infinite loop. cf. 6129c930 ("test-lib:
+# limit the output of the yes utility", 2016-02-02)
 yes () {
        if test $# = 0
        then