From: Ken Brown <kbrown@cornell.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 23640@debbugs.gnu.org, Paul Eggert <eggert@cs.ucla.edu>,
Andy Moreton <andrewjmoreton@gmail.com>
Subject: bug#23640: 25.1.50; Getting rid of compiler warnings
Date: Mon, 30 May 2016 12:20:24 -0400 [thread overview]
Message-ID: <0ff3a5dd-91e3-f455-0b17-88e6ba2c6802@cornell.edu> (raw)
In-Reply-To: <b5f88f09-1413-8853-bb41-a5ee3d00d810@cornell.edu>
On 5/30/2016 10:41 AM, Ken Brown wrote:
> Question: Why bother with IF_LINT at all? Why not just unconditionally
> initialize the variables that gcc complains about?
If keeping IF_LINT is important, we could do something like this:
diff --git a/configure.ac b/configure.ac
index e88a3a9..f628c9a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -997,7 +997,14 @@ AC_DEFUN
gl_WARN_ADD([-Wno-pointer-sign])
fi
- AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
+ case $opsys in
+ cygwin | freebsd)
+ AC_DEFINE([gcc_warnings], [1], [Define to 1 if gcc warnings are enabled.])
+ ;;
+ *)
+ AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
+ ;;
+ esac
AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
[/* Enable compile-time and run-time bounds-checking, and some warnings,
diff --git a/src/conf_post.h b/src/conf_post.h
index 5d3394f..987bcad 100644
--- a/src/conf_post.h
+++ b/src/conf_post.h
@@ -344,7 +344,7 @@ extern int emacs_setenv_TZ (char const *);
#endif
/* Use this to suppress gcc's `...may be used before initialized' warnings. */
-#ifdef lint
+#if defined lint || defined gcc_warnings
/* Use CODE only if lint checking is in effect. */
# define IF_LINT(Code) Code
#else
next prev parent reply other threads:[~2016-05-30 16:20 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-28 18:40 bug#23640: 25.1.50; Getting rid of compiler warnings Ken Brown
2016-05-28 18:57 ` Eli Zaretskii
2016-05-28 21:47 ` Ken Brown
2016-05-29 22:43 ` Ken Brown
2016-05-30 11:39 ` Ken Brown
2016-05-30 14:41 ` Ken Brown
2016-05-30 16:20 ` Ken Brown [this message]
2016-05-30 23:29 ` Paul Eggert
2016-05-31 0:11 ` Ken Brown
2016-05-31 8:03 ` Andy Moreton
2016-05-31 22:22 ` Richard Stallman
2016-05-31 0:15 ` Paul Eggert
2016-06-01 8:35 ` Paul Eggert
2016-06-01 20:37 ` Richard Stallman
2016-06-01 21:10 ` Paul Eggert
2016-06-02 12:05 ` Andy Moreton
2016-06-03 3:35 ` Richard Stallman
2016-06-06 14:45 ` Paul Eggert
2016-06-07 6:19 ` Richard Stallman
2016-06-07 7:15 ` Paul Eggert
2016-06-08 4:00 ` Richard Stallman
2016-06-08 7:18 ` Paul Eggert
2016-06-08 17:06 ` Richard Stallman
2016-06-01 8:55 ` Paul Eggert
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