lib/configure: Also accept host tuples without vendor string

Based on patch from
https://bugs.gentoo.org/show_bug.cgi?id=425022

diff --git a/lib/configure b/lib/configure
index 3783f57558279bc05ce2b910ededf5599d123d79..7d4cec85fd2ca8d8838ed2d1ba5f7c5a0a93c1af 100755 (executable)
--- a/lib/configure
+++ b/lib/configure
@@ -44,7 +44,7 @@ if [ -z "$HOST" ] ; then
 fi
 [ -n "$RELEASE" ] && rel="${RELEASE}"
 # CAVEAT: tr on Solaris is a bit weird and the extra [] is otherwise harmless.
-host=`echo $HOST | sed -e 's/^\([^-]*\)-\([^-]*\)-\([^-]*\)-\([^-]*\)$/\1-\3/' -e 's/^\([^-]*\)-\([^-]*\)$/\1--\2/' | tr '[A-Z]' '[a-z]'`
+host=`echo $HOST | sed -e 's/^\([^-]*\)-\([^-]*\)-\([^-]*\)-\([^-]*\)$/\1-\3/' -e 's/^\([^-]*\)-\([^-]*\)-\([^-]*\)$/\1-\2/' -e 's/^\([^-]*\)-\([^-]*\)$/\1--\2/' | tr '[A-Z]' '[a-z]'`
 cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
 sys=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo " $host $rel $cpu $sys"