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Re: max_align_t on RHEL 7.1 s390x

From: Bruno Haible
Subject: Re: max_align_t on RHEL 7.1 s390x
Date: Wed, 29 Aug 2018 23:02:33 +0200
User-agent: KMail/5.1.3 (Linux/4.4.0-130-generic; KDE/5.18.0; x86_64; ; )

Sergio Durigan Junior wrote:
> the specific case of the command line invocation, here's what is being
> used:
>   gcc -DHAVE_CONFIG_H -I. -I../../../../binutils-gdb/gdb/gnulib/import -I..   
>   -g -D_GLIBCXX_DEBUG  -MT glob.o -MD -MP -MF $depbase.Tpo -c -o glob.o 
> ../../../../binutils-gdb/gdb/gnulib/import/glob.c &&\
> mv -f $depbase.Tpo $depbase.Po

So, it's using 'gcc' without any '-std=...' option.

By [1] it is probably a gcc version 4.8.x. By [2] it uses -std=gnu90 by default.
This explains the error messages at least.

So it boils down to what Paul hinted at: Why was the 'c99' module not
effective? For this, it would be good if you could attach config.log
(config.status and config.cache are not sufficient for analyzing this).


[1] https://github.com/linux-on-ibm-z/docs/wiki/Building-GCC-4.8
[2] https://gcc.gnu.org/onlinedocs/gcc-4.8.5/gcc/Standards.html

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