From: Zack Weinberg <zackw@panix.com>
Date: Wed, 26 Aug 2020 19:15:34 +0000 (-0400)
Subject: Add ‘START_TIME’ and ‘ToD’ to shell variable filter list.
X-Git-Tag: v2.69c~28
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f783dd434a077305ea5d1edb0d928f233736aadf;p=thirdparty%2Fautoconf.git

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 0fe1c343..a875b5e0 100644
--- 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