[Xen-devel] Building xtf on older distros

[Glenn Enright <glenn@xxxxxxxxxxxxxxx>]

Hi there

When building the xen testing framework on CentOS6, I see the below 
issue. I see similar issues with CentOS7 and other distros with older 
tool chains. The only one that built cleanly for me was Ubuntu 1604.
Some workarounds (disabling the -W options) let it get a bit further but 
I hit other issues.
Andrew separately mentioned this may be related to C99 initialisation, 
which sounds about right.
At the moment I'm doing a static build and moving the binaries where I 
need to run the tests, which is fine, but it would be nice to have a 
native c6 build working to match the rest of my existing test infra.
Not a C dev, but happy to test any/all things.

Not list subscribed so please include in CC.

Regards, Glenn
http://rimuhosting.com

...
gcc -pipe -I/root/gle/xtf/include -I/root/gle/xtf/arch/x86/include -MMD 
-MP  -Wall -Wextra -Werror -std=gnu99 -Wstrict-prototypes -O3 -g 
-fno-common -fno-asynchronous-unwind-tables -fno-strict-aliasing 
-fno-stack-protector -fno-pic -ffreestanding -mno-red-zone -mno-sse 
-Wno-unused-parameter -Winline -m64  -DCONFIG_ENV_pv64 -include 
arch/config.h -c /root/gle/xtf/arch/x86/setup.c -o 
/root/gle/xtf/arch/x86/setup-pv64.o
cc1: warnings being treated as errors
/root/gle/xtf/arch/x86/grant_table.c: In function ‘arch_map_gnttab’:
/root/gle/xtf/arch/x86/grant_table.c:19: error: implicit declaration of 
function ‘_Static_assert’
make[1]: *** [/root/gle/xtf/arch/x86/grant_table-pv64.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory `/root/gle/xtf/tests/cpuid'
make: *** [all] Error 2

# gcc --version
gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

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