* config.sub: Don't force basic_machine based on $os just for

"mint" and "clix".

I got rid of this forcing, as it can hide an error from the user and
is unlike how other OSes are handled. I added fallbacks for clix (MiNT
already had some) such that at least the following stil work:

  $ ./config.sub clipper-clix
  clipper-intergraph-clix

  $ ./config.sub m68k-mint
  m68k-atari-mint

  $ ./config.sub mint
  m68k-atari-mint

"clix" (as opposed to "nonsense-clix", ie. with at least one "-"
before) never worked, so I didn't add a short-hand to make it work
like "mint".

Signed-off-by: Ben Elliston <bje@gnu.org>

ChangeLog

@@ -1,3 +1,8 @@
+2018-05-23  John Ericson  <john.ericson@obsidian.systems>
+
+	* config.sub: Don't force basic_machine based on $os just for
+	"mint" and "clix".
+
 2018-05-23  John Ericson  <john.ericson@obsidian.systems>
 
 	* config.sub: No more OS-driven substitution of -pc with sed.

config.sub

@@ -607,9 +607,6 @@ case $os in
 	isc)
 		os=isc2.2
 		;;
-	clix*)
-		basic_machine=clipper-intergraph
-		;;
 	lynx*178)
 		os=lynxos178
 		;;
@@ -625,10 +622,6 @@ case $os in
 	psos*)
 		os=psos
 		;;
-	mint | mint[0-9]*)
-		basic_machine=m68k-atari
-		os=mint
-		;;
 esac
 
 # Decode aliases for certain CPU-COMPANY combinations.
@@ -1586,6 +1579,9 @@ case $basic_machine in
 	c8051-*)
 		os=elf
 		;;
+	clipper-intergraph)
+		os=clix
+		;;
 	hexagon-*)
 		os=elf
 		;;
@@ -1779,6 +1775,9 @@ case $basic_machine in
 			genix*)
 				vendor=ns
 				;;
+			clix*)
+				vendor=intergraph
+				;;
 			mvs* | opened*)
 				vendor=ibm
 				;;