[bug#56872] [PATCH v2] gnu: mu: Update to 1.8.7.

[muradm]

From below error I see that it is pth package failing to build.
Most likely there are others that are not getting built.
Does it mean that it was never built before mu-1.8.7?
Does it mean that we sould restrict mu-1.8.7 by platform?

Maxime Devos <maximedevos@telenet.be> writes:

> [[PGP Signed Part:Undecided]]
>
> On 02-08-2022 21:27, muradm wrote:
> > Thanks, I know.
> > My laptop won't survive, to be correct.
> > That what I ment :)
>
> The build farm has substitutes for the cross-compiler and the
> cross-compiled glib (at least if you are cross-compiling from
> x86_64-linux), so except for downloading some additional 
> substitutes,
> cross-compiling mu should not take much longer than compiling 
> natively
> (assuming the substitute server is authorised).
>
> In fact, for me it finished after a few seconds because of 
> dependency
> pth fails to cross-compile:
>
> > checking size of short... grep: /usr/include/features.h: No 
> > such
> > file or directory
> > [...]
> >
> > ./libtool --mode=compile --quiet aarch64-linux-gnu-gcc -c -I. 
> > -O2
> > -pipe pth_mctx.c
> > pth_mctx.c: In function '__pth_mctx_set':
> > pth_mctx.c:480:2: error: #error "Unsupported Linux (g)libc 
> > version
> > and/or platform"
> >   480 | #error "Unsupported Linux (g)libc version and/or 
> > platform"
> >       |  ^~~~~
> > make: *** [Makefile:155: pth_mctx.lo] Error 1
> > error: in phase 'build': uncaught exception:
> Greetings,
> Maxime.
>
> [2. OpenPGP public key --- application/pgp-keys; 
> OpenPGP_0x49E3EE22191725EE.asc]...
>
> [[End of PGP Signed Part]]

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