The value of $host_os, determined by the current config.guess, is: - On Alpine Linux 3.9: linux-musl - On Alpine Linux 3.10: linux-gnu - On Alpine Linux 3.12: linux-musl
The reason is that config.guess tests 'ldd --version'. However, in Alpine Linux 3.10, /usr/bin/ldd has been replaced with a shell script that does not understand the --version option: $ cat /usr/bin/ldd #!/bin/sh exec /lib/ld-musl-x86_64.so.1 --list -- "$@" $ /usr/bin/ldd --version 2>&1 /lib/ld-musl-x86_64.so.1: cannot load --version: No such file or directory Find attached a proposed fix. More details in <https://lists.gnu.org/archive/html/bug-gnulib/2020-09/msg00098.html>. Bruno
>From 6e8da56c68ad94175d67acfc6257e614fe74e01d Mon Sep 17 00:00:00 2001 From: Bruno Haible <br...@clisp.org> Date: Sat, 19 Sep 2020 15:24:59 +0200 Subject: [PATCH] * config.guess: Fix determination of musl libc on Alpine Linux 3.10. --- ChangeLog | 5 +++++ config.guess | 14 ++++++-------- 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/ChangeLog b/ChangeLog index 4f106db..834f4e5 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2020-09-19 Bruno Haible <br...@clisp.org> + + * config.guess: Don't use 'ldd --version' to determine the presence of + musl libc, as this fails on Alpine Linux 3.10. + 2020-09-08 Elad Lahav <e2la...@gmail.com> Ben Elliston <b...@gnu.org> diff --git a/config.guess b/config.guess index 9aff91c..8d70ec2 100755 --- a/config.guess +++ b/config.guess @@ -2,7 +2,7 @@ # Attempt to guess a canonical system name. # Copyright 1992-2020 Free Software Foundation, Inc. -timestamp='2020-08-17' +timestamp='2020-09-19' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by @@ -150,17 +150,15 @@ Linux|GNU|GNU/*) #elif defined(__dietlibc__) LIBC=dietlibc #else + #include <stdarg.h> + #ifdef __DEFINED_va_list + LIBC=musl + #else LIBC=gnu #endif + #endif EOF eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`" - - # If ldd exists, use it to detect musl libc. - if command -v ldd >/dev/null && \ - ldd --version 2>&1 | grep -q ^musl - then - LIBC=musl - fi ;; esac -- 2.7.4
