Please i am facing problem while installing vbox vga card (vboxguest) and i got error as warning that stops make processes

What's this got to do with gcc? Far as I know, a default gcc compile will not treat warnings as errors. However if you're using a makefile, then check the CFLAGS for Werror.

Thanks a lot
You are totally right it is a bug in 8.2 but I can't make this as it is using installation script with compressed files

Upgrading to 9.1 and still having the same issue

you need to describe your problem much better: http://catb.org/~esr/faqs/smart-ques...html#beprecise

Thanks a lot
1) My environment is LFS 8.3 systemd
2) GCC treated warnings as errors
3) I am trying to install Vbox guest and got error as
./include/linux/moduleparam.h:233:37: note: in definition of macro 'module_param_call'
233 | { .flags = 0, .set = _set, .get = _get }; \
| ^~~~
In file included from /tmp/vbox.0/r0drv/linux/the-linux-kernel.h:88,
from /tmp/vbox.0/VBoxGuest-linux.c:27:
./include/linux/module.h:138:7: warning: 'cleanup_module' specifies less restrictive attribute than its target 'vgdrvLinuxModExit': 'cold' [-Wmissing-attributes]
138 | void cleanup_module(void) __attribute__((alias(#exitfn)));
| ^~~~~~~~~~~~~~
/tmp/vbox.0/VBoxGuest-linux.c:1079:1: note: in expansion of macro 'module_exit'
1079 | module_exit(vgdrvLinuxModExit);
| ^~~~~~~~~~~
/tmp/vbox.0/VBoxGuest-linux.c:678:20: note: 'cleanup_module' target declared here
678 | static void __exit vgdrvLinuxModExit(void)
| ^~~~~~~~~~~~~~~~~
In file included from /tmp/vbox.0/r0drv/linux/the-linux-kernel.h:88,
from /tmp/vbox.0/VBoxGuest-linux.c:27:
./include/linux/module.h:132:6: warning: 'init_module' specifies less restrictive attribute than its target 'vgdrvLinuxModInit': 'cold' [-Wmissing-attributes]
132 | int init_module(void) __attribute__((alias(#initfn)));
| ^~~~~~~~~~~
/tmp/vbox.0/VBoxGuest-linux.c:1078:1: note: in expansion of macro 'module_init'
1078 | module_init(vgdrvLinuxModInit);
| ^~~~~~~~~~~
/tmp/vbox.0/VBoxGuest-linux.c:540:19: note: 'init_module' target declared here
540 | static int __init vgdrvLinuxModInit(void)
| ^~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:317: /tmp/vbox.0/VBoxGuest-linux.o] Error 1
make[2]: *** Waiting for unfinished jobs....
./tools/objtool/objtool check --module --retpoline "/tmp/vbox.0/VBoxGuest.o";
make[1]: *** [Makefile:1500: _module_/tmp/vbox.0] Error 2
make: *** [/tmp/vbox.0/Makefile.include.footer:85: vboxguest] Error 2
I upgraded the GCC version to 9.1 and i am still getting the same error
I am unable to edit the configure flag or custom anything in make process because vbox guest using installation scripts with compressed files and i am not able to edit them
I need to fix the GCC as i tried the same installation script on another environment (ubuntu 18) and it is working good

I did a lot of researches and all about using flag --disable-werror but as i said i am unable to reach configure file or make directlly

Thanks a lot again

Only because of the Makefile you're using is requesting that, it is not the default behaviour of gcc. From the man page of gcc
so - as you have been told before - by default gcc does NOT treat warnings as errors, but of course when one of these flags is given in the commandline, it will.

You disable this behaviour by removing the -Werror options from the commandline "make" is using to call gcc.
HOW, is up to you.

Thanks a lot but I can't remove the werror flag and i tried the same script on ubuntu 18 and I got no errors or warnings

again, would be nice to explain what did you try exactly.

Sure please
1) I updated the GCC to 9.1 and i got the same error
2) I am unable to change the GCC flag at the script, I followed the script but it contains multi scripts within compressed files
3) I installed script on ubuntu 18 and I got no error
4) I searched all results on the internet and all of them say this is not a normal behavior of GCC and in case you have to sed make files but I am unable to reach them and this is Virtual box guest script so it must not contains those kind of errors

Please any requested more details?