From: Zack Weinberg <zackw@panix.com>
To: "Carlos O'Donell" <carlos@redhat.com>
Cc: GNU C Library <libc-alpha@sourceware.org>
Subject: Re: [PATCH v4] Use a proper C tokenizer to implement the obsolete typedefs test.
Date: Mon, 11 Mar 2019 20:59:46 -0400 [thread overview]
Message-ID: <CAKCAbMg-iK8MPRizK=eaWHZaZG293D6ynbnJEsZqJxiAq9Zjow@mail.gmail.com> (raw)
In-Reply-To: <36fa3d03-0dc4-bbd7-5c99-c8fe19255b8e@redhat.com>
On Mon, Mar 11, 2019 at 2:57 PM Carlos O'Donell <carlos@redhat.com> wrote:
> > * scripts/check-obsolete-constructs.py: New test script.
> > * scripts/check-installed-headers.sh: Remove tests for
> > obsolete typedefs, superseded by check-obsolete-constructs.py.
> > * Rules: Run scripts/check-obsolete-constructs.py over $(headers)
> > as a special test. Update commentary.
> > * posix/bits/types.h (__SQUAD_TYPE, __S64_TYPE): Define as __int64_t.
> > (__UQUAD_TYPE, __U64_TYPE): Define as __uint64_t.
> > Update commentary.
> > * posix/sys/types.h (__u_intN_t): Remove.
> > (u_int8_t): Typedef using __uint8_t.
> > (u_int16_t): Typedef using __uint16_t.
> > (u_int32_t): Typedef using __uint32_t.
> > (u_int64_t): Typedef using __uint64_t.
>
> OK for master if you:
> - Fix the conditional in check-installed-headers.sh.
>
> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Is it now the convention that we put Reviewed-by: lines into the final
commit message, or just that we say that on the mailing list?
> > if $cc_cmd -fsyntax-only $lang_mode "$cih_test_c" 2>&1
> > - then
> > - includes=$($cc_cmd -fsyntax-only -H $lang_mode \
> > - "$cih_test_c" 2>&1 | sed -ne 's/^[.][.]* //p')
> > - for h in $includes; do
> > - # Don't repeat work.
> > - eval 'case "$h" in ('"$already"') continue;; esac'
> > -
> > - if grep -qE "$obsolete_type_re" "$h"; then
> > - echo "*** Obsolete types detected:"
> > - grep -HE "$obsolete_type_re" "$h"
> > - failed=1
> > - fi
> > - already="$already|$h"
> > - done
> > - else
> > - failed=1
> > + then :
> > + else failed=1
>
> Why not 'if ! $cc_cmd ...' ? Which avoids the odd empty if block e.g. ":".
`if ! ...` is not portable shell, despite being included in the POSIX
shell language. See
https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Limitations-of-Builtins.html
(under `!`) `if command_1; then :; else command_2; fi` is the
alternative idiom I learned back in the days of SunOS 4.
Possibly `if ! ...` is portable enough for this script, but I try not
to think about whether semi-portable shell constructs are portable
enough for the current script.
Do you still want me to change it?
zw
next prev parent reply other threads:[~2019-03-12 1:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-11 14:59 [PATCH v4] Use a proper C tokenizer to implement the obsolete typedefs test Zack Weinberg
2019-03-11 18:57 ` Carlos O'Donell
2019-03-12 0:59 ` Zack Weinberg [this message]
2019-03-12 3:47 ` Carlos O'Donell
2019-03-13 13:47 ` Zack Weinberg
2019-03-13 22:16 ` Joseph Myers
2019-03-14 13:00 ` Carlos O'Donell
2019-03-14 13:21 ` Zack Weinberg
2019-03-14 18:06 ` Joseph Myers
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/libc/involved.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAKCAbMg-iK8MPRizK=eaWHZaZG293D6ynbnJEsZqJxiAq9Zjow@mail.gmail.com' \
--to=zackw@panix.com \
--cc=carlos@redhat.com \
--cc=libc-alpha@sourceware.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).