* An issue in configure.ac of gdbserver
@ 2005-12-29 5:38 Jie Zhang
2005-12-30 2:40 ` Daniel Jacobowitz
0 siblings, 1 reply; 3+ messages in thread
From: Jie Zhang @ 2005-12-29 5:38 UTC (permalink / raw)
To: gdb; +Cc: Daniel Jacobowitz
Hi,
This piece of code in configure.ac of gdbserver does not work as
intended, since gcc only gives an warning if it does not accept
-rdynamic.
LDFLAGS="$LDFLAGS -rdynamic"
AC_TRY_LINK([], [], [RDYNAMIC=-rdynamic], [RDYNAMIC=])
AC_SUBST(RDYNAMIC)
Regards,
Jie
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: An issue in configure.ac of gdbserver
2005-12-29 5:38 An issue in configure.ac of gdbserver Jie Zhang
@ 2005-12-30 2:40 ` Daniel Jacobowitz
2005-12-30 6:31 ` Jie Zhang
0 siblings, 1 reply; 3+ messages in thread
From: Daniel Jacobowitz @ 2005-12-30 2:40 UTC (permalink / raw)
To: Jie Zhang; +Cc: gdb
On Thu, Dec 29, 2005 at 01:38:29PM +0800, Jie Zhang wrote:
> Hi,
>
> This piece of code in configure.ac of gdbserver does not work as
> intended, since gcc only gives an warning if it does not accept
> -rdynamic.
>
> LDFLAGS="$LDFLAGS -rdynamic"
> AC_TRY_LINK([], [], [RDYNAMIC=-rdynamic], [RDYNAMIC=])
> AC_SUBST(RDYNAMIC)
Is this a problem? For one thing, usually dejagnu reports gcc warnings
as fatal; the test would fail if the option generated a warning. For
another, the option should be used unless it causes gcc to fail;
using it even when GCC doesn't support it should be harmless.
--
Daniel Jacobowitz
CodeSourcery, LLC
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: An issue in configure.ac of gdbserver
2005-12-30 2:40 ` Daniel Jacobowitz
@ 2005-12-30 6:31 ` Jie Zhang
0 siblings, 0 replies; 3+ messages in thread
From: Jie Zhang @ 2005-12-30 6:31 UTC (permalink / raw)
To: Daniel Jacobowitz; +Cc: gdb
Daniel Jacobowitz wrote:
> On Thu, Dec 29, 2005 at 01:38:29PM +0800, Jie Zhang wrote:
>
>>Hi,
>>
>>This piece of code in configure.ac of gdbserver does not work as
>>intended, since gcc only gives an warning if it does not accept
>>-rdynamic.
>>
>> LDFLAGS="$LDFLAGS -rdynamic"
>> AC_TRY_LINK([], [], [RDYNAMIC=-rdynamic], [RDYNAMIC=])
>> AC_SUBST(RDYNAMIC)
>
>
> Is this a problem? For one thing, usually dejagnu reports gcc warnings
> as fatal; the test would fail if the option generated a warning. For
> another, the option should be used unless it causes gcc to fail;
> using it even when GCC doesn't support it should be harmless.
>
I thought it's also trying to catch the warning. Thanks for explanation.
Jie
^ permalink raw reply [flat|nested] 3+ messages in thread
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