From: Dan Nicolaescu <dann@gnu.org>
To: Glenn Morris <rgm@gnu.org>
Cc: 6538-done@debbugs.gnu.org
Subject: bug#6538: Removal of C_DEBUG_SWITCH changes CFLAGS
Date: Wed, 30 Jun 2010 01:56:47 -0400 [thread overview]
Message-ID: <yxqsk4583mo.fsf@fencepost.gnu.org> (raw)
In-Reply-To: <vq1vbpkyx2.fsf@fencepost.gnu.org> (Glenn Morris's message of "Tue\, 29 Jun 2010 23\:00\:09 -0400")
Glenn Morris <rgm@gnu.org> writes:
> Package: emacs
>
> Configuring Emacs 23.2 on Solaris 2.10 with a non-GNU cc, one gets
> generated Makefiles containing:
>
> CFLAGS=-g -O
>
> Configuring the current trunk, one gets
>
> CFLAGS=
>
> The cause appears to be the removal of C_DEBUG_SWITCH.
> It is possible other platforms are affected, I did not check (likewise
> with LIBS_DEBUG).
LIBS_DEBUG was just -lg, it can be safely ignored.
>
> The configure logic (faithfully inherited from cpp) is weird. Eg
> C_OPTIMIZE_SWITCH goes unused with non-GNU compilers.
Not anymore.
C_DEBUG_SWITCH was weird, it used to specify optimization flags too,
that's probably why C_OPTIMIZE_SWITCH is unused.
C_DEBUG_SWITCH was just -g -O for all platforms that bothered to set it.
We get that anyway for non-GCC compilers.
next prev parent reply other threads:[~2010-06-30 5:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-30 3:00 bug#6538: Removal of C_DEBUG_SWITCH changes CFLAGS Glenn Morris
2010-06-30 5:56 ` Dan Nicolaescu [this message]
2010-06-30 6:37 ` Glenn Morris
2010-06-30 7:27 ` Dan Nicolaescu
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