Test for temporary files

[Pavel Roskin]

Hello!

As promised, it's the patch for temporary files left by Autoconf macros.
Suggestions on better names are welcome.

Also I must rename files to "expout" due to limitations of AT_CHECK. Maybe
we should have a macro for comparing files.

ChangeLog:
        * tests/aclocal.m4 (AC_ENV_SAVE): Renamed to ...
        (AC_STATE_SAVE): ... this. Also is saves the list of all files
        in the current directory.
        * tests/atspecific.m4 (_AT_CHECK_AC_MACRO): Compare lists of
        files created by AC_ENV_SAVE. Remove state* before and after
        the test.

Regards,
Pavel Roskin

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Index: tests/aclocal.m4
--- tests/aclocal.m4    Mon Oct 16 08:27:30 2000
+++ tests/aclocal.m4    Tue Oct 24 18:29:10 2000
@@ -10,7 +10,7 @@
         [[$2][$1]join([$1], m4_shift(m4_shift($@)))])])
 
 
-# AC_ENV_SAVE(FILE)
+# AC_STATE_SAVE(FILE)
 # ------------------
 # Save the environment, but the variables we are allowed to touch.
 # This is to check no test touches the user name space.
@@ -27,7 +27,7 @@
 #   Some variables some shells use and change
 # - POW_LIB
 #   From acfunctions.m4.
-AC_DEFUN([AC_ENV_SAVE],
+AC_DEFUN([AC_STATE_SAVE],
 [(set) 2>&1 |
   egrep -v -e \
 'join([|],
@@ -46,7 +46,9 @@
       [^(_|@|.[*#?].|LINENO|OLDPWD|PIPESTATUS|RANDOM|SECONDS)=])' |
   # There maybe variables spread on several lines, eg IFS, remove the dead
   # lines
-  fgrep = >$1
+  fgrep = >state-env.$1
+  rm -f state-ls.$1
+  ls -1 | grep -v '^state' | sort > state-ls.$1
 ])
 
 
Index: tests/atspecific.m4
--- tests/atspecific.m4 Tue Oct 24 09:56:17 2000
+++ tests/atspecific.m4 Tue Oct 24 18:26:57 2000
@@ -85,12 +85,13 @@
 [AC_INIT
 AC_CONFIG_AUX_DIR($top_srcdir)
 AC_CONFIG_HEADER(config.h:config.hin)
-AC_ENV_SAVE(expout)
+AC_STATE_SAVE(before)
 $1
-AC_ENV_SAVE(env-after)
+AC_STATE_SAVE(after)
 AC_OUTPUT
 ])
 $2
+rm -f state*
 AT_CHECK([autoconf -W none --autoconf-dir .. -l $at_srcdir], 0, [], [])
 AT_CHECK([autoheader --autoconf-dir .. -l $at_srcdir], 0, [], [])
 AT_CHECK([top_srcdir=$top_srcdir ./configure], 0, ignore, [])
@@ -98,9 +99,14 @@
 
 dnl Some tests might exit prematurely when they find a problem, in
 dnl which case `env-after' is probably missing.  Don't check it then.
-if test -f env-after; then
-  AT_CHECK([cat env-after], 0, expout)
+if test -f state-env.after; then
+  cp -f state-env.before expout
+  AT_CHECK([cat state-env.after], 0, expout)
+  cp -f state-ls.before expout
+  AT_CHECK([cat state-ls.after], 0, expout)
 fi
+exit 1
+rm -f state*
 ])# _AT_CHECK_AC_MACRO
 
 
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