(xf. http://gcc.gnu.org/ml/gcc/2012-06/msg00043.html)
On Mon, Jun 4, 2012 at 7:05 PM, Jason Merrill <jason at redhat dot com> wrote:
>>> Jason, is this flag something that we could deprecate for GCC 4.7 and
>>> remove?
>>
>>
>> The docs say the flag is not useful these days as BSS is widely available.
>
>
> Right. So yes, go ahead.
Hello,
Here are the patches for wwwdocs and GCC 4.7 branch. Bootstrapped and
tested on x86_64-unknown-linux-gnu. OK?
Ciao!
Steven
Index: htdocs/gcc-4.7/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.7/changes.html,v
retrieving revision 1.110
diff -u -r1.110 changes.html
--- htdocs/gcc-4.7/changes.html 1 Jun 2012 09:27:10 -0000 1.110
+++ htdocs/gcc-4.7/changes.html 4 Jun 2012 19:35:22 -0000
@@ -15,6 +15,11 @@
<h2>Caveats</h2>
<ul>
+ <li><p>The <code>-fconserve-space</code> flag has been
+ deprecated. The flag only had an effect for G++ but could
+ result in wrong semantics (please refer to the GCC manual
+ for further details). The flag will be removed in GCC 4.8</p></li>
+
<li><p>Support for a number of older systems and recently
unmaintained or untested target ports of GCC has been declared
obsolete in GCC 4.7. Unless there is activity to revive them, the
gcc/
* doc/invoke.texi (item -fconserve-space): This flag is deprecated
c-family/
* c.opt (fconserve-space): Deprecate.
Index: doc/invoke.texi
===================================================================
--- doc/invoke.texi (revision 188202)
+++ doc/invoke.texi (working copy)
@@ -1940,6 +1940,8 @@ exhaustion is signalled by throwing @cod
@item -fconserve-space
@opindex fconserve-space
+This option is now deprecated.
+
Put uninitialized or run-time-initialized global variables into the
common segment, as C does. This saves space in the executable at the
cost of not diagnosing duplicate definitions. If you compile with this
Index: c-family/c.opt
===================================================================
--- c-family/c.opt (revision 188202)
+++ c-family/c.opt (working copy)
@@ -745,7 +745,7 @@ Allow the arguments of the '?' operator
fconserve-space
C++ ObjC++ Var(flag_conserve_space)
-Reduce the size of object files
+Deprecated. Reduce the size of object files, at the expense of wrong
semantics.
fconstant-string-class=
ObjC ObjC++ Joined MissingArgError(no class name specified with %qs)
