Mercurial > gnulib
diff gnulib-tool @ 13658:a597697ae97c
gnulib-tool: Avoid stderr output on IRIX related to 'alias', 'unalias'.
* gnulib-tool: Don't fiddle with file descriptors 0, 1, 2. Instead, use
a reliable way to determine whether the 'alias' command works.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Thu, 09 Sep 2010 11:39:51 +0200 |
| parents | 10c072121fd2 |
| children | 6a2c7d3ca5f0 |
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--- a/gnulib-tool Wed Sep 08 22:24:22 2010 +0200 +++ b/gnulib-tool Thu Sep 09 11:39:51 2010 +0200 @@ -836,28 +836,24 @@ # that the top-level statement containing the test starts after the 'alias' # command. if test -z "$have_echo"; then -bsd_echo () + bsd_echo () { cat <<EOF $* EOF } -exec 3>&2 -exec 2>/dev/null -alias echo=bsd_echo -exec 2>&3 -exec 3>&- + if (alias echo=bsd_echo) 2>/dev/null; then + alias echo=bsd_echo 2>/dev/null + fi fi if test -z "$have_echo" \ && echo '\t' | grep t > /dev/null; then have_echo=yes fi if test -z "$have_echo"; then - exec 3>&2 - exec 2>/dev/null - unalias echo - exec 2>&3 - exec 3>&- + if (alias echo=bsd_echo) 2>/dev/null; then + unalias echo 2>/dev/null + fi fi # For Solaris /bin/sh and OSF/1 /bin/sh: respawn using /bin/ksh. if test -z "$have_echo" \