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* config.sub: Properly recognise configuration types with four

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components. Re-work the old logic to simplify the shell code.

Signed-off-by: Ben Elliston <bje@gnu.org>
This commit is contained in:
John Ericson 2018-05-05 15:15:12 +10:00 committed by Ben Elliston
parent 642dd8df5e
commit 50a0413a5b
2 changed files with 45 additions and 25 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2018-05-05 John Ericson <john.ericson@obsidian.systems>
* config.sub: Properly recognise configuration types with four
components. Re-work the old logic to simplify the shell code.
2018-05-04 Ben Elliston <bje@gnu.org>
* Makefile (shellcheck): New.

65
config.sub vendored
View File

@ -2,7 +2,7 @@
# Configuration validation subroutine script.
# Copyright 1992-2018 Free Software Foundation, Inc.
timestamp='2018-05-03'
timestamp='2018-05-05'
# 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
@ -110,33 +110,48 @@ case $# in
exit 1;;
esac
# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
# Here we must recognize all the valid KERNEL-OS combinations.
maybe_os=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
case $maybe_os in
nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
kopensolaris*-gnu* | cloudabi*-eabi* | \
storm-chaos* | os2-emx* | rtmk-nova*)
os=-$maybe_os
basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
;;
android-linux)
os=-linux-android
basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
;;
*)
basic_machine=`echo "$1" | sed 's/-[^-]*$//'`
case $1 in
*-*)
os=`echo "$1" | sed 's/.*-/-/'`
# Spilt fields of configuration type
IFS="-" read field1 field2 field3 field4 <<EOF
$1
EOF
# Separate into logical components for further validation
case $1 in
*-*-*-*)
basic_machine=$field1-$field2
os=-$field3-$field4
;;
*)
*-*-*)
# Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two
# parts
maybe_os=$field2-$field3
case $maybe_os in
nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc \
| linux-newlib* | linux-musl* | linux-uclibc* | uclinux-uclibc* \
| uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
| netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
| storm-chaos* | os2-emx* | rtmk-nova*)
basic_machine=$field1
os=-$maybe_os
;;
android-linux)
basic_machine=$field1-unknown
os=-linux-android
;;
*)
basic_machine=$field1-$field2
os=-$field3
;;
esac
;;
*-*)
basic_machine=$field1
os=-$field2
;;
*)
basic_machine=$1
os=
;;
esac
;;
esac
### Let's recognize common machines as not being operating systems so