From: Dmitry Antipov <dmantipov@yandex.ru>
To: eggert@cs.ucla.edu
Cc: emacs-devel@gnu.org
Subject: Warnings/errors related to possibly clobbered variables
Date: Tue, 13 Jan 2015 14:32:22 +0300 [thread overview]
Message-ID: <54B50246.2070507@yandex.ru> (raw)
With:
configure --prefix=/not/exists --enable-checking --enable-check-lisp-object-type --enable-gcc-warnings --with-x-toolkit=lucid
I got:
../../emacs/src/keyboard.c: In function ‘read_char’:
../../emacs/src/keyboard.c:2376:15: warning: variable ‘c’ might be clobbered by ‘longjmp’ or ‘vfork’ [-Wclobbered]
Lisp_Object c;
^
But with:
configure --prefix=/not/exists --enable-checking --enable-check-lisp-object-type --enable-gcc-warnings --with-x-toolkit=no
the same warning is treated as fatal error:
../../emacs/src/keyboard.c: In function ‘read_char’:
../../emacs/src/keyboard.c:2376:15: error: variable ‘c’ might be clobbered by ‘longjmp’ or ‘vfork’ [-Werror=clobbered]
Lisp_Object c;
^
cc1: all warnings being treated as errors
Why this is so?
Dmitry
next reply other threads:[~2015-01-13 11:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-13 11:32 Dmitry Antipov [this message]
2015-01-13 11:51 ` Warnings/errors related to possibly clobbered variables Andreas Schwab
2015-01-13 12:12 ` Dmitry Antipov
2015-01-13 16:21 ` Eli Zaretskii
2015-01-13 17:07 ` Paul Eggert
2015-01-13 19:43 ` Stefan Monnier
2015-01-13 20:10 ` Eli Zaretskii
2015-01-13 20:55 ` Stefan Monnier
2015-01-13 21:31 ` Paul Eggert
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