Add ‘START_TIME’ and ‘ToD’ to shell variable filter list.

NetBSD sh has invented more magic shell variables with values related
to the current time: ‘START_TIME’ and ‘ToD’.  Like ‘SECONDS’, these
can cause spurious testsuite failures and should be filtered out when
checking for undesirable changes to the environment.

* tests/local.at (_AT_CHECK_ENV, AT_CONFIG_CMP): Add shell variables
  START_TIME and ToD to filter list.

diff --git a/tests/local.at b/tests/local.at
index 0fe1c343830376a9c411fdda56a4bf389520af7a..a875b5e0be50f0fb3a9af16836bdd6769047cf11 100644 (file)
--- a/tests/local.at
+++ b/tests/local.at
@@ -326,7 +326,7 @@ m4_define([AT_CHECK_CONFIGURE],
 # - AC_SUBST'ed variables
 #   (FIXME: Generate a list of these automatically.)
 # - _|@|.[*#?$].|argv|ARGC|LINENO|OLDPWD|PIPESTATUS|RANDOM|SECONDS
-#   |_AST_FEATURES
+#   |START_TIME|ToD|_AST_FEATURES
 #   Some variables some shells use and change.
 #   `.[*#?$].' catches `$#' etc. which are displayed like this:
 #      | '!'=18186
@@ -377,7 +377,7 @@ if test -f state-env.before && test -f state-env.after; then
       [GREP|[EF]GREP|SED],
       [[_@]|.[*#?$].],
       [argv|ARGC|LINENO|BASH_ARGC|BASH_ARGV|OLDPWD|PIPESTATUS|RANDOM],
-      [SECONDS|_AST_FEATURES]))=' \
+      [SECONDS|START_TIME|ToD|_AST_FEATURES]))=' \
      $act_file ||
        test $? -eq 1 || echo failed >&2
     ) 2>stderr-$act_file |
@@ -408,6 +408,8 @@ fi
 #   - PPID [bash, zsh]
 #   - RANDOM [bash, zsh]
 #   - SECONDS [bash, zsh]
+#   - START_TIME [NetBSD sh]
+#   - ToD [NetBSD sh]
 #   - '$' [zsh]
 #   - argv [zsh]
 #   - ARGC [zsh]
@@ -437,6 +439,8 @@ do
        /^PPID=/ d
        /^RANDOM=/ d
        /^SECONDS=/ d
+       /^START_TIME=/ d
+       /^ToD=/ d
        /'\'\\\$\''=/ d
        /^argv=/ d
        /^ARGC=/ d