From: Paul Eggert <eggert@cs.ucla.edu>
To: Philipp Stephani <p.stephani2@gmail.com>,
Philipp Stephani <phst@google.com>,
emacs-devel@gnu.org
Subject: Re: [PATCH] Clean up a couple of compiler warnings
Date: Sun, 21 May 2017 13:33:44 -0700 [thread overview]
Message-ID: <7631cb49-7940-7758-9ec3-5530e0ab542e@cs.ucla.edu> (raw)
In-Reply-To: <CAArVCkT3G85=otipybsd_E14QFWHnr5W3w-ZVHJy82VQbeuD9g@mail.gmail.com>
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Philipp Stephani wrote:
> This apparently hasn't worked, at least I still get the warning, and
> there's no -Wno-missing-braces in WARN_CFLAGS.
My change didn't add -Wno-missing-braces; it removed -Wmissing-braces. This
sufficed for Fedora 25 x86-64, which has clang 3.9.1.
Perhaps you're running a different version of Clang, which is pickier? If so,
you might try the attached patch; if it works, please feel free to install it.
> For Clang, it'd probably be better to use -Weverything and then disable
> individual warnings with -Wno
I'd rather not spend a lot of time worrying about warnings generated by
compilers other than recent GCC, as there are too many compilers and too many
false alarms and it's not worth the hassle. If you'd like to take up the burden
of pacifying Clang with tricks like the above, though, that should be fine, as
long as it doesn't burden maintenance for the rest of us. If not, and if Clang
continues to be a hassle, we can avoid much of the hassle by disabling warnings
by default when the compiler is Clang.
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[-- Attachment #2: clang.diff --]
[-- Type: text/x-patch; name="clang.diff", Size: 402 bytes --]
diff --git a/configure.ac b/configure.ac
index 12e44d9..6d23b5d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -986,6 +986,7 @@ AC_DEFUN
# More things that clang is unduly picky about.
if test $emacs_cv_clang = yes; then
+ gl_WARN_ADD([-Wno-missing-braces])
gl_WARN_ADD([-Wno-tautological-compare])
gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
fi
next prev parent reply other threads:[~2017-05-21 20:33 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-18 20:24 [PATCH] Clean up a couple of compiler warnings Philipp Stephani
2017-05-18 20:40 ` Eli Zaretskii
2017-05-19 3:48 ` Paul Eggert
2017-05-19 6:53 ` Eli Zaretskii
2017-05-19 6:55 ` Paul Eggert
2017-05-19 9:31 ` Philipp Stephani
2017-05-21 6:07 ` Paul Eggert
2017-05-21 20:00 ` Philipp Stephani
2017-05-21 20:33 ` Paul Eggert [this message]
2017-05-23 10:17 ` Philipp Stephani
2017-05-23 17:36 ` Paul Eggert
2017-05-23 19:19 ` Eli Zaretskii
2017-05-23 19:21 ` Philipp Stephani
2017-05-21 20:47 ` Perry E. Metzger
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