diff options
| -rw-r--r-- | tests/init.sh | 45 |
1 files changed, 31 insertions, 14 deletions
diff --git a/tests/init.sh b/tests/init.sh index 05a983a45..e23aa54be 100644 --- a/tests/init.sh +++ b/tests/init.sh @@ -63,33 +63,50 @@ # - hyphen-containing alias names # - we prefer to use ${var#...} substitution, rather than having # to work around lack of support for that feature. -# The following code attempts to find a shell with support for these features -# and re-exec's it. If not, it skips the current test. +# The following code attempts to find a shell with support for these features. +# If the current shell passes the test, we're done. Otherwise, test other +# shells until we find one that passes. If one is found, re-exec it. +# If no acceptable shell is found, skip the current test. +# +# Use "9" to indicate success (rather than 0), in case some shell acts +# like Solaris 10's /bin/sh but exits successfully instead of with status 2. gl_shell_test_script_=' test $(echo y) = y || exit 1 -test -z "$EXEEXT" && exit 0 +test -z "$EXEEXT" && exit 9 shopt -s expand_aliases alias a-b="echo zoo" v=abx test ${v%x} = ab \ && test ${v#a} = bx \ - && test $(a-b) = zoo + && test $(a-b) = zoo \ + && exit 9 ' if test "x$1" = "x--no-reexec"; then shift else - for re_shell_ in "${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 - if "$re_shell_" -c "$gl_shell_test_script_" 2>/dev/null; then - exec "$re_shell_" "$0" --no-reexec "$@" - echo "$ME_: exec failed" 1>&2 - exit 127 - fi - done + # '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 + "$re_shell_" -c "$gl_shell_test_script_" 2>/dev/null + if test $? = 9; then + # Found an acceptable shell. + exec "$re_shell_" "$0" --no-reexec "$@" + echo "$ME_: exec failed" 1>&2 + exit 127 + fi + done + fi fi test -n "$EXEEXT" && shopt -s expand_aliases |