#! /bin/sh
# Configuration validation subroutine script.
-# Copyright 2021 Thomas E. Dickey
-# Copyright 1992-2021 Free Software Foundation, Inc.
+# Copyright 1992-2022 Free Software Foundation, Inc.
-timestamp='2021-04-30'
+# shellcheck disable=SC2006,SC2268 # see below for rationale
+
+timestamp='2022-01-03'
# 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
-# the Free Software Foundation; either version 3 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
# It is wrong to echo any other type of specification.
+# The "shellcheck disable" line above the timestamp inhibits complaints
+# about features and limitations of the classic Bourne shell that were
+# superseded or lifted in POSIX. However, this script identifies a wide
+# variety of pre-POSIX systems that do not have POSIX shells at all, and
+# even some reasonably current systems (Solaris 10 as case-in-point) still
+# have a pre-POSIX /bin/sh.
+
me=`echo "$0" | sed -e 's,.*/,,'`
usage="\
version="\
GNU config.sub ($timestamp)
-Copyright 1992-2021 Free Software Foundation, Inc.
+Copyright 1992-2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
# Split fields of configuration type
# shellcheck disable=SC2162
+saved_IFS=$IFS
IFS="-" read field1 field2 field3 field4 <<EOF
$1
EOF
+IFS=$saved_IFS
# Separate into logical components for further validation
case $1 in
basic_machine=$field1
basic_os=$field2
;;
+ zephyr*)
+ basic_machine=$field1-unknown
+ basic_os=$field2
+ ;;
# Manufacturers
dec* | mips* | sequent* | encore* | pc533* | sgi* | sony* \
| att* | 7300* | 3300* | delta* | motorola* | sun[234]* \
*-*)
# shellcheck disable=SC2162
+ saved_IFS=$IFS
IFS="-" read cpu vendor <<EOF
$basic_machine
EOF
+ IFS=$saved_IFS
;;
# We use `pc' rather than `unknown'
# because (1) that's what they normally are, and
;;
# Here we normalize CPU types with a missing or matching vendor
+ armh-unknown | armh-alt)
+ cpu=armv7l
+ vendor=alt
+ basic_os=${basic_os:-linux-gnueabihf}
+ ;;
dpx20-unknown | dpx20-bull)
cpu=rs6000
vendor=bull
xscale-* | xscalee[bl]-*)
cpu=`echo "$cpu" | sed 's/^xscale/arm/'`
;;
- arm64-*)
+ arm64-* | aarch64le-*)
cpu=aarch64
;;
| alphapca5[67] | alpha64pca5[67] \
| am33_2.0 \
| amdgcn \
- | arc | arceb | arc64 \
+ | arc | arceb | arc32 | arc64 \
| arm | arm[lb]e | arme[lb] | armv* \
| avr | avr32 \
| asmjs \
if test x$basic_os != x
then
-# First recognize some ad-hoc caes, or perhaps split kernel-os, or else just
+# First recognize some ad-hoc cases, or perhaps split kernel-os, or else just
# set os.
case $basic_os in
gnu/linux*)
kernel=linux
- os=`echo $basic_os | sed -e 's|gnu/linux|gnu|'`
+ os=`echo "$basic_os" | sed -e 's|gnu/linux|gnu|'`
;;
os2-emx)
kernel=os2
- os=`echo $basic_os | sed -e 's|os2-emx|emx|'`
+ os=`echo "$basic_os" | sed -e 's|os2-emx|emx|'`
;;
nto-qnx*)
kernel=nto
- os=`echo $basic_os | sed -e 's|nto-qnx|qnx|'`
+ os=`echo "$basic_os" | sed -e 's|nto-qnx|qnx|'`
;;
*-*)
# shellcheck disable=SC2162
+ saved_IFS=$IFS
IFS="-" read kernel os <<EOF
$basic_os
EOF
+ IFS=$saved_IFS
;;
# Default OS when just kernel was specified
nto*)
kernel=nto
- os=`echo $basic_os | sed -e 's|nto|qnx|'`
+ os=`echo "$basic_os" | sed -e 's|nto|qnx|'`
;;
linux*)
kernel=linux
- os=`echo $basic_os | sed -e 's|linux|gnu|'`
+ os=`echo "$basic_os" | sed -e 's|linux|gnu|'`
;;
*)
kernel=
os=cnk
;;
solaris1 | solaris1.*)
- os=`echo $os | sed -e 's|solaris1|sunos4|'`
+ os=`echo "$os" | sed -e 's|solaris1|sunos4|'`
;;
solaris)
os=solaris2
os=sco3.2v4
;;
sco3.2.[4-9]*)
- os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+ os=`echo "$os" | sed -e 's/sco3.2./sco3.2v/'`
;;
sco*v* | scout)
# Don't match below
;;
# Preserve the version number of sinix5.
sinix5.*)
- os=`echo $os | sed -e 's|sinix|sysv|'`
+ os=`echo "$os" | sed -e 's|sinix|sysv|'`
;;
sinix*)
os=sysv4
# Now, validate our (potentially fixed-up) OS.
case $os in
# Sometimes we do "kernel-libc", so those need to count as OSes.
- musl* | newlib* | uclibc*)
+ musl* | newlib* | relibc* | uclibc*)
;;
# Likewise for "kernel-abi"
eabi* | gnueabi*)
| skyos* | haiku* | rdos* | toppers* | drops* | es* \
| onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
| midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
- | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx*)
+ | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
+ | fiwix* )
;;
# This one is extra strict with allowed versions
sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
# As a final step for OS-related things, validate the OS-kernel combination
# (given a valid OS), if there is a kernel.
case $kernel-$os in
- linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* | linux-musl* | linux-uclibc* )
+ linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* \
+ | linux-musl* | linux-relibc* | linux-uclibc* )
;;
uclinux-uclibc* )
;;
- -dietlibc* | -newlib* | -musl* | -uclibc* )
+ -dietlibc* | -newlib* | -musl* | -relibc* | -uclibc* )
# These are just libc implementations, not actual OSes, and thus
# require a kernel.
echo "Invalid configuration \`$1': libc \`$os' needs explicit kernel." 1>&2
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