[PATCH] Add support for Twizzler.

[Daniel Bittman]

Hello!

This patch add support for recognizing Twizzler as a valid system in config.sub 
and config.guess.

These files currently require manual patching to get software for Twizzler to 
compile. I'm planning to release the initial version of Twizzler 
(https://www.ssrc.ucsc.edu/proj/osnvm.html) in the next 6 months, and since it 
takes a while for downstream packages to pick up changes here, I figured I 
should get this patch in asap.

I've made modifications to the files based on the way other projects have added 
support, such that config.guess should return an appropriate system 
configuration and config.sub will recognize Twizzler correctly during 
compilation (I have tested this in my porting tree for existing software).

Let me know if I need to change / add anything.

-Daniel

---
 ChangeLog                   | 5 +++++
 config.guess                | 5 ++++-
 config.sub                  | 2 +-
 testsuite/config-guess.data | 2 ++
 testsuite/config-sub.data   | 2 ++
 5 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 050dda3..a26eff1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2019-09-10  Daniel Bittman  <address@hidden>
+
+       * config.guess (*:Twizzler:*:*): New.
+       * config.sub (-twizzler*): New.
+
 2019-08-04  Ben Elliston  <address@hidden>
 
        * testsuite/config-sub.data: Add some old Pentium test cases.
diff --git a/config.guess b/config.guess
index 97ad073..7f9ebbe 100755
--- a/config.guess
+++ b/config.guess
@@ -2,7 +2,7 @@
 # Attempt to guess a canonical system name.
 #   Copyright 1992-2019 Free Software Foundation, Inc.
 
-timestamp='2019-07-24'
+timestamp='2019-09-10'
 
 # 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
@@ -274,6 +274,9 @@ case 
"$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
     *:Sortix:*:*)
        echo "$UNAME_MACHINE"-unknown-sortix
        exit ;;
+    *:Twizzler:*:*)
+       echo "$UNAME_MACHINE"-unknown-twizzler
+       exit ;;
     *:Redox:*:*)
        echo "$UNAME_MACHINE"-unknown-redox
        exit ;;
diff --git a/config.sub b/config.sub
index a318a46..0f2234c 100755
--- a/config.sub
+++ b/config.sub
@@ -1343,7 +1343,7 @@ case $os in
             | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
             | sym* | kopensolaris* | plan9* \
             | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
-            | aos* | aros* | cloudabi* | sortix* \
+            | aos* | aros* | cloudabi* | sortix* | twizzler* \
             | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
             | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
             | knetbsd* | mirbsd* | netbsd* \
diff --git a/testsuite/config-guess.data b/testsuite/config-guess.data
index 8d5796a..410f786 100644
--- a/testsuite/config-guess.data
+++ b/testsuite/config-guess.data
@@ -90,6 +90,7 @@ ppc64 | 2.6.9-22 | Linux | ignored | ignored | 
powerpc64-unknown-linux-gnu
 ppc64le | 3.1.0 | Linux | ignored | ignored | powerpc64le-unknown-linux-gnu
 riscv32 | ignored | Linux | ignored | ignored | riscv32-unknown-linux-gnu
 riscv64 | ignored | Linux | ignored | ignored | riscv64-unknown-linux-gnu
+riscv | 1.0 | Twizzler | ignored | ignored | riscv-unknown-twizzler
 s390x | 5.6 | SunOS | ignored | ignored | s390x-ibm-solaris2.6
 sun3 | 4.0 | SunOS | ignored | ignored | m68k-sun-sunos4.0
 sun4 | 5.6 | SunOS | ignored | ignored | sparc-sun-solaris2.6
@@ -111,6 +112,7 @@ x86_64 | 1.0 | MINGW64 | ignored | ignored | 
x86_64-pc-mingw64
 x86_64 | 1.0 | MINGW | ignored | ignored | x86_64-pc-mingw32
 x86_64 | 1.0 | Redox | ignored | ignored | x86_64-unknown-redox
 x86_64 | 1.0 | Sortix | ignored | ignored | x86_64-unknown-sortix
+x86_64 | 1.0 | Twizzler | ignored | ignored | x86_64-unknown-twizzler
 x86_64 | 14.0 | Darwin | ignored | i386 | x86_64-apple-darwin14.0
 x86_64 | 1.5.18(0.132/4/2) | CYGWIN_NT-5.2 | ignored | ignored | 
x86_64-pc-cygwin
 x86_64 | 2.0.0(0.271/5/3) | MSYS_NT-6.1 | ignored | ignored | x86_64-pc-msys
diff --git a/testsuite/config-sub.data b/testsuite/config-sub.data
index 5736629..7b7a318 100644
--- a/testsuite/config-sub.data
+++ b/testsuite/config-sub.data
@@ -568,6 +568,7 @@ riscv-company-elf                           
riscv-company-elf
 riscv-company-hcos                             riscv-company-hcos
 riscv-elf                                      riscv-unknown-elf
 riscv-linux                                    riscv-unknown-linux-gnu
+riscv-twizzler                                 riscv-unknown-twizzler
 riscv                                          riscv-unknown-none
 rl78-linux                                     rl78-unknown-linux-gnu
 rl78                                           rl78-unknown-none
@@ -765,6 +766,7 @@ x86_64-pc-ptx                                       
x86_64-pc-ptx
 x86_64-ptx                                     x86_64-pc-ptx
 x86_64-redox                                   x86_64-pc-redox
 x86_64-sortix                                  x86_64-pc-sortix
+x86_64-twizzler                                x86_64-pc-twizzler
 x86_64-unknown-ptx                             x86_64-sequent-ptx
 x86_64-windows                                 x86_64-pc-windows
 x86                                            x86-unknown-none
-- 
2.23.0