[RFC PATCH 05/15] config.sub: consistently use sun as default vendor for solaris*.

[Zack Weinberg]

config.sub had a rule that os=sunos* implies vendor=sun unless the
vendor has already been set for some other reason, but no such rule
for os=solaris*, and that meant `./config.sub sparc-solaris2` was
inconsistent with what you’d get from config.guess on that system.

Add the missing rule.

Unlike the previous patch, this changes config.sub output for some
systems still actually in use today, but hardly anything looks at
the vendor field unless the OS field is something super generic like
“bsd” or “sysv”, so I think we can get away with it.

This patch also adds tests for the mapping of ‘sunos5’ to ‘solaris2’
and ‘solaris1’ to ‘sunos4’, which is logically unrelated *except*
that some of those test cases will fail in the absence of the above
change.
---
 config.sub                |  2 +-
 testsuite/config-sub.data | 10 ++++++++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/config.sub b/config.sub
index 2ebbed7..e1bb431 100755
--- a/config.sub
+++ b/config.sub
@@ -2237,7 +2237,7 @@ case $vendor in
                        *-riscix*)
                                vendor=acorn
                                ;;
-                       *-sunos*)
+                       *-sunos* | *-solaris*)
                                vendor=sun
                                ;;
                        *-cnk* | *-aix*)
diff --git a/testsuite/config-sub.data b/testsuite/config-sub.data
index aab6419..9357454 100644
--- a/testsuite/config-sub.data
+++ b/testsuite/config-sub.data
@@ -770,6 +770,12 @@ shle-elf                                   shle-unknown-elf
 simso-wrs                                      sparclite-wrs-vxworks
 sparc                                          sparc-sun-sunos4.1.1
 sparc-haiku                                    sparc-unknown-haiku
+sparc-solaris                                  sparc-sun-solaris2
+sparc-solaris1                                 sparc-sun-sunos4
+sparc-sunos                                    sparc-sun-sunos
+sparc-sunos4                                   sparc-sun-sunos4
+sparc-sunos5                                   sparc-sun-solaris2
+sparc-sunos6                                   sparc-sun-solaris3
 sparc-zephyr                                   sparc-unknown-zephyr
 sparc64                                                sparc64-unknown-none
 sparc64-linux                                  sparc64-unknown-linux-gnu
@@ -777,7 +783,7 @@ sparc64b                                    
sparc64b-unknown-none
 sparc64b-linux                                 sparc64b-unknown-linux-gnu
 sparc64v                                       sparc64v-unknown-none
 sparc64v-elf                                   sparc64v-unknown-elf
-sparc64v-solaris2.9                            sparc64v-unknown-solaris2.9
+sparc64v-solaris2.9                            sparc64v-sun-solaris2.9
 sparc86x                                       sparc86x-unknown-none
 sparclet                                       sparclet-unknown-none
 sparclite                                      sparclite-unknown-none
@@ -787,7 +793,7 @@ sparcv9                                             
sparcv9-unknown-none
 sparcv9b                                       sparcv9b-unknown-none
 sparcv9v                                       sparcv9v-unknown-none
 sparcv9v-elf                                   sparcv9v-unknown-elf
-sparcv9v-solaris2.9                            sparcv9v-unknown-solaris2.9
+sparcv9v-solaris2.9                            sparcv9v-sun-solaris2.9
 sps7                                           m68k-bull-sysv2
 spu                                            spu-unknown-elf
 spu-elf                                                spu-unknown-elf
-- 
2.43.2