- # 'eval'ing the above code makes Solaris 10's /bin/sh exit with $? set to 2.
- # It does not evaluate any of the code after the "unexpected" `('. Thus,
- # we must run it in a subshell.
- ( eval "$gl_shell_test_script_" ) > /dev/null 2>&1
- if test $? = 9; then
- : # The current shell is adequate. No re-exec required.
- else
- # Search for a shell that meets our requirements.
- for re_shell_ in "${CONFIG_SHELL:-no_shell}" /bin/sh bash dash zsh pdksh fail
- do
- test "$re_shell_" = no_shell && continue
- test "$re_shell_" = fail && skip_ failed to find an adequate shell
+ # Assume a working shell. Export to subshells (setup_ needs this).
+ gl_set_x_corrupts_stderr_=false
+ export gl_set_x_corrupts_stderr_
+
+ # Record the first marginally acceptable shell.
+ marginal_=
+
+ # Search for a shell that meets our requirements.
+ for re_shell_ in __current__ "${CONFIG_SHELL:-no_shell}" \
+ /bin/sh bash dash zsh pdksh fail
+ do
+ test "$re_shell_" = no_shell && continue
+
+ # If we've made it all the way to the sentinel, "fail" without
+ # finding even a marginal shell, skip this test.
+ if test "$re_shell_" = fail; then
+ test -z "$marginal_" && skip_ failed to find an adequate shell
+ re_shell_=$marginal_
+ break
+ fi
+
+ # When testing the current shell, simply "eval" the test code.
+ # Otherwise, run it via $re_shell_ -c ...
+ if test "$re_shell_" = __current__; then
+ # 'eval'ing this code makes Solaris 10's /bin/sh exit with
+ # $? set to 2. It does not evaluate any of the code after the
+ # "unexpected" first `('. Thus, we must run it in a subshell.
+ ( eval "$gl_shell_test_script_" ) > /dev/null 2>&1
+ else