tests: fix spurious failure due to Solaris XPG4 sh bug

On Solaris 10, the /usr/xpg4/bin/sh shell seems unable to execute
a shell script named 'script':

  $ touch script
  $ /bin/sh script; echo status: $? # As expected.
  status: 0
  $ /usr/xpg4/bin/sh script; echo status: $? # Weirdness follows.
  /usr/xpg4/bin/sh: script: cannot execute
  status: 1

This was causing a spurious testsuite failure for users which have
/usr/xpg4/bin in $PATH before /bin and /usr/bin.  Fix that.

* tests/m4sh.at (Configure re-execs self with CONFIG_SHELL): Rename
the m4sh-produced script to 'script2', to avoid the just-described
issue.

diff --git a/tests/m4sh.at b/tests/m4sh.at
index 78fe9674989d65e7b326cebe4a75323fcf3a3494..4e4da5d1ae7bb0ceaac0dab8b34b58349dfbc9ea 100644 (file)
--- a/tests/m4sh.at
+++ b/tests/m4sh.at
@@ -49,6 +49,10 @@ echo foo > sentinel
 ]])
 AT_CHECK_M4SH
 
+# Calling the script simply 'script' could cause problems with
+# Solaris /usr/xpg4/bin/sh in the invocation 'sh script' below.
+mv -f script script2
+
 AT_DATA([fake-shell],
 [[#!/bin/sh
 echo 'Fake shell executed.'
@@ -61,7 +65,7 @@ done
 ]])
 chmod a+x fake-shell
 
-AT_CHECK([CONFIG_SHELL=./fake-shell ./script 1 2 4 8], [0],
+AT_CHECK([CONFIG_SHELL=./fake-shell ./script2 1 2 4 8], [0],
 [Fake shell executed.
 nargs = 4
  :1:
@@ -73,7 +77,7 @@ AT_CHECK([test ! -f sentinel], [0])
 test ! -f sentinel || rm -f sentinel # Cleanup for next test.
 
 AT_CHECK(
-[CONFIG_SHELL=`pwd`/fake-shell sh script a 'b  c' '  d    e '],
+[CONFIG_SHELL=`pwd`/fake-shell sh script2 a 'b  c' '  d           e '],
 [0],
 [Fake shell executed.
 nargs = 3
@@ -85,7 +89,7 @@ AT_CHECK([test ! -f sentinel], [0])
 test ! -f sentinel || rm -f sentinel # Cleanup for next test.
 
 AT_CHECK([(PATH=`pwd`:$PATH; export PATH;
-CONFIG_SHELL=fake-shell script '' '&' '!;*' '<($[]@%:@)>,' 'x
+CONFIG_SHELL=fake-shell script2 '' '&' '!;*' '<($[]@%:@)>,' 'x
 y  z
 1 2 3')], [0],
 [Fake shell executed.