Re: [Buildroot] [PATCH 1/1] package/mpir: fix build with host gcc >= 14

[Thomas Petazzoni via buildroot <buildroot@buildroot.org>]

On Sat, 20 Jul 2024 14:29:08 +0200
Fabrice Fontaine <fontaine.fabrice@gmail.com> wrote:

> Fix the following build failure with host gcc >= 14 which enables
> -Werror=implicit-function-declaration
> (https://gcc.gnu.org/gcc-14/porting_to.html):
> 
> configure:9998: checking build system compiler /usr/bin/gcc
> configure:10011: /usr/bin/gcc conftest.c
> conftest.c: In function 'main':
> conftest.c:4:3: error: implicit declaration of function 'exit' [-Wimplicit-function-declaration]
>     4 |   exit(0);
>       |   ^~~~
> conftest.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'exit'
>   +++ |+#include <stdlib.h>
>     1 | int
> conftest.c:4:3: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch]
>     4 |   exit(0);
>       |   ^~~~
> conftest.c:4:3: note: include '<stdlib.h>' or provide a declaration of 'exit'
> configure:10014: $? = 1
> configure:10021: result: no
> configure:10026: error: Specified CC_FOR_BUILD doesn't seem to work
> 
> Fixes:
>  - http://autobuild.buildroot.org/results/3ab381f06d5dc030039b6f6f8d19feb55cf3367d
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> ---
>  ...-Fix-configure-failures-with-Xcode12.patch | 116 ++++++++++++++++++
>  package/mpir/mpir.mk                          |   2 +
>  2 files changed, 118 insertions(+)
>  create mode 100644 package/mpir/0002-Fix-configure-failures-with-Xcode12.patch

I had investigated the issue as well, and came to the exact same
conclusion, so: patch applied. Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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