GNU bug report logs - #9203
24.0.50; some Clang experience

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Tom Tromey <tom <at> tromey.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#9203: closed (24.0.50; some Clang experience)
Date: Tue, 22 Dec 2015 03:45:02 +0000

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Your message dated Mon, 21 Dec 2015 20:44:30 -0700
with message-id <87oadj2llt.fsf <at> tromey.com>
and subject line bug#9203: 24.0.50; some Clang experience
has caused the debbugs.gnu.org bug report #9203,
regarding 24.0.50; some Clang experience
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: Peter Dyballa <Peter_Dyballa <at> Freenet.DE>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.50; some Clang experience
Date: Sat, 30 Jul 2011 13:53:30 +0200

Hello!

When using

	Apple clang version 2.0 (tags/Apple/clang-139) (based on LLVM 2.9svn)
	Target: x86_64-apple-darwin10
	Thread model: posix

to compile GNU Emacs on Mac OS X 10.6.8 with intel Core i7 it warns about some statements:

emacs-24.0.50/lib-src/../src/regex.c:6603:15: warning: 
      comparison of unsigned enum expression >= 0 is always true [-Wtautological-compare]
      if (ret >= 0)
          ~~~ ^  ~
emacs-24.0.50/lib-src/../src/regex.c:6619:14: warning: 
      comparison of unsigned enum expression >= 0 is always true [-Wtautological-compare]
  return ret >= 0 ? REG_NOERROR : REG_NOMATCH;
         ~~~ ^  ~

emacs-24.0.50/lib-src/emacsclient.c:1269:52: warning: 
      passing 'const char *' to parameter of type 'char *' discards qualifiers
                confstr (_CS_DARWIN_USER_TEMP_DIR, tmpdir, n);
                                                   ^~~~~~
In file included from emacs-24.0.50/lib-src/emacsclient.c:76:
In file included from ../lib/getopt.h:31:
In file included from /usr/include/getopt.h:44:
In file included from ../lib/unistd.h:43:
/usr/include/unistd.h:423:28: note: passing argument to parameter here
size_t   confstr(int, char *, size_t) __DARWIN_ALIAS(confstr);
                            ^

The installed NS variant is a bit unstable. Maybe I just need to optimise the compiler switches in the near future!

--
Greetings

  Pete

I hope to die before I *have* to use Microsoft Word.
			- Donald E. Knuth, 2001-10-02 in Tübingen

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From: Tom Tromey <tom <at> tromey.com>
To: 9203-done <at> debbugs.gnu.org
Subject: bug#9203: 24.0.50; some Clang experience
Date: Mon, 21 Dec 2015 20:44:30 -0700

I looked at the warnings here and from what I can tell they've all been
fixed.

The regex.c one was fixed by correcting the type of 'ret'.

The emacsclient.c one was fixed by introducing tmpdir_storage and
passing it to confstr.

If you still see these warnings, please reply and we can reopen the bug.

thanks,
Tom

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