On Sun, Oct 17, 2021 at 07:18:51PM +0200, Bruno Haible wrote: > Hello Sergei, > > Sergei Trofimovich wrote: > > The following fails bison-3.8.2 tests: > > $ ./configure && make && make check > > The following succeeds: > > $ ./configure --host=x86_64-unknown-linux-musl && make && make check > > > > The failure happens due to unexpected '*' output in report logs instead > > of '%empty' on 'ASCII' locales. > > > > These unexpected '*' pop back again because gnulib relies on '--host=' > > parameter for './configure' to detect musl target (for lack of better > > signal?): > > > > https://git.savannah.gnu.org/cgit/gnulib.git/tree/m4/musl.m4#n16 > > > > case "$host_os" in > > *-musl*) AC_DEFINE([MUSL_LIBC], [1], [Define to 1 on musl libc.]) ;; > > > > https://git.savannah.gnu.org/cgit/gnulib.git/tree/lib/unicodeio.c#n151 > > > > /* FreeBSD iconv(), NetBSD iconv(), and Solaris 11 iconv() insert > > a '?' if they cannot convert. */ > > # if !defined _LIBICONV_VERSION > > || (res > 0 && outptr - outbuf == 1 && *outbuf == '?') > > # endif > > /* musl libc iconv() inserts a '*' if it cannot convert. */ > > # if !defined _LIBICONV_VERSION && MUSL_LIBC > > || (res > 0 && outptr - outbuf == 1 && *outbuf == '*') > > # endif > > ) > > return failure (code, NULL, callback_arg); > > > > What do you think of enabling the workaround regardless of MUSL_LIBC > > define? > > The MUSL_LIBC symbol is supposed to be set on musl platforms; this is > what musl.m4 is for. The difference between your two invocations is that > in the first case, it used a $host triple inferred by config.guess, > while in the second case, it used the $host that you specified on the > command line. > > When I try your two commands (just the configure step), the first one > prints > checking for host system type... x86_64-pc-linux-musl > while the second one prints > checking for host system type... x86_64-unknown-linux-musl > > The next steps of the investigation are: In the first case, > - What did the "checking for host system type..." line look like? > - Which of the environment variables CC_FOR_BUILD, HOST_CC, CC, > CONFIG_SITE did you have defined, and to which values?
Aha, 'config.guess' clearly detects wrong libc here: checking build system type... x86_64-pc-linux-gnu checking host system type... x86_64-pc-linux-gnu I did not realize 'config.guess' has the code to detect libc but it clearly does. I'll dig from there and complain elsewhere. Thank you! -- Sergei
