stack grow direction wrongly detected

[Marco Atzeri]

On 05.03.2021 15:43, gs-cygwin.com@gluelogic.com wrote:
> On Fri, Mar 05, 2021 at 11:31:04PM +0900, Takashi Yano via Cygwin wrote:
>> On Fri, 5 Mar 2021 13:18:38 +0100
>> Marco Atzeri wrote:
>>> Hi Guys,
>>> noted trying to rebuild guile 1.8.8.
>>>
>>> The following piece of code in the past
>>> was setting SCM_I_GSC_STACK_GROWS_UP=0
>>> and now produces SCM_I_GSC_STACK_GROWS_UP=1
>>>
>>> I assume some change in the gcc compiler is causing the issue.
>>> I presume most of the programs and libraries do not care,
>>> but some special one like guile crashes during build for this issue,
>>> so be aware.
>>>
>>> Regards
>>> Marco
>>>

> 
> If the compiler is gcc or clang:
> 
> __attribute__(__noinline__)

thanks Glenn,

as
__attribute__((__noinline__))

it seems to work
for all variant of -Ox

> int
> find_stack_direction ()
> {
> ...
> }
> 
> Cheers, Glenn

Regards
Marco