bug#49985: bash-mesboot0: Inscrutable error in build phase

[Bengt Richter <bokr@bokr.com>]

On +2021-08-11 02:38:54 +0200, Bengt Richter wrote:
> On +2021-08-10 15:41:25 -0400, Carl Dong wrote:
> > Hi all,
> > 
> > While setting up Guix for a community member of mine, we encountered this somewhat inscrutable problem (I later learned this is not the first time Guix users have run into this problem!). When building /gnu/store/2nvaxgs0rdxfkrwklh622ggaxg0wap6n-bash-mesboot0-2.05b.drv, we encountered the following build failure: https://paste.sr.ht/~dongcarl/376b19b8349c329ed5329508c7fb43a7c3aec64b#2nvaxgs0rdxfkrwklh622ggaxg0wap6n-bash-mesboot0-2.05b.log-L1299
> > 
> > The error line is L1299: "make: stat:Makefile: sterror: unknown error”
> >--
> 
> To me, sterror looks like a typo for strerror
> so grepping for sterror might find the typo, if that's what it is?
>
Looking at ./lib/mes/__mes_debug.c, it looks like you could set/export environment
 MES_DEBUG=1 and run it again to see the error number ./lib/string/strerror.c
(in git repo) doesn't like.

Then run something like my error-printing kludge that will work on your system:

I called it errno-grep
--8<---------------cut here---------------start------------->8---
#!/usr/bin/bash
if [ -z "$1" ];then
    echo "Usage: errno-grep [ grep switches for grepping the following files in order ]"
    echo "    /usr/include/asm-generic/errno-base.h"
    echo "    /usr/include/asm-generic/errno.h"
    exit 0
fi

if [ "${1:0:1}" == "-" ]; then
    exec grep "$@" /usr/include/asm-generic/errno-base.h /usr/include/asm-generic/errno.h
else
    exec egrep -wh "$@" /usr/include/asm-generic/errno-base.h /usr/include/asm-generic/errno.h
fi
--8<---------------cut here---------------end--------------->8---

HTH.