GNU bug report logs - #70889
29.3; GCC14.1 MinGW compilation error

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Message #40 received at 70889 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Cyril Arnould <cyril.arnould <at> outlook.com>
Cc: 70889 <at> debbugs.gnu.org, eggert <at> cs.ucla.edu
Subject: Re: bug#70889: 29.3; GCC14.1 MinGW compilation error
Date: Fri, 17 May 2024 20:41:13 +0300

> Date: Fri, 17 May 2024 19:19:24 +0200
> Cc: 70889 <at> debbugs.gnu.org
> From: Cyril Arnould <cyril.arnould <at> outlook.com>
> 
> Thought I'd let you know, I found another error in the config.log
> which was previously a warning:
> 
> 
> configure:23030: checking whether pthread_setname_np takes a single argument
> configure:23047: gcc -I ./nt/inc -c -g3 -O2 -gdwarf-2 
> -Wno-error=implicit-function-declaration -isystem 
> C:/msys64/mingw64/include/librsvg-2.0 -isystem 
> C:/msys64/mingw64/include/gdk-pixbuf-2.0 -isystem 
> C:/msys64/mingw64/include/webp -DLIBDEFLATE_DLL -isystem 
> C:/msys64/mingw64/include/cairo -isystem 
> C:/msys64/mingw64/include/freetype2 -isystem 
> C:/msys64/mingw64/include/libpng16 -isystem 
> C:/msys64/mingw64/include/harfbuzz -isystem 
> C:/msys64/mingw64/include/glib-2.0 -isystem 
> C:/msys64/mingw64/lib/glib-2.0/include -isystem 
> C:/msys64/mingw64/include/pixman-1 -isystem 
> C:/msys64/mingw64/include/webp -mtune=generic   conftest.c >&5
> conftest.c: In function 'main':
> conftest.c:135:21: error: passing argument 1 of 'pthread_setname_np' 
> makes integer from pointer without a cast [-Wint-conversion]
>    135 | pthread_setname_np ("a");
>        |                     ^~~
>        |                     |
>        |                     char *
> In file included from conftest.c:131:
> C:/msys64/mingw64/include/pthread.h:323:55: note: expected 'pthread_t' 
> {aka 'long long unsigned int'} but argument is of type 'char *'
>    323 | WINPTHREAD_API int       pthread_setname_np(pthread_t thread, 
> const char *name);
>        |                                             ~~~~~~~~~~^~~~~~
> conftest.c:135:1: error: too few arguments to function 'pthread_setname_np'
>    135 | pthread_setname_np ("a");
>        | ^~~~~~~~~~~~~~~~~~
> C:/msys64/mingw64/include/pthread.h:323:26: note: declared here
>    323 | WINPTHREAD_API int       pthread_setname_np(pthread_t thread, 
> const char *name);
>        |                          ^~~~~~~~~~~~~~~~~~
> configure:23047: $? = 1
> 
> 
> I don't think this affects the Windows build though; if I compile with
> '-Wno-error=int-conversion' the configure script still reports:
> 
> checking whether pthread_setname_np takes a single argument... no

We don't want the Windows build to use pthreads, so this doesn't
affect the Windows build in any way.

> It might possibly affect the build on other systems though.

Let's wait for them to complain, if this is even a problem on those
other platforms.

Thanks.

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