Sort "in"compatibilities with xpg4...

Hi there, below is a "issue" I would believe that sort should
handle "correctly" as per the xpg4 versions, not the SVR4 version
of sort (Or is that POSIX correct") to take -k 1,1 as the whole line.
Is there a way to force sort to handle -k 1,1 the same way as -k 2,2??

Below hermwas is a Solaris 2.6 machine, while meklon is a 
Linux machine with Textutils 2.1.

Greetz
Hendrik


hermwas% /usr/xpg4/bin/sort  -k 1,1 -c  test
hermwas% /usr/bin/sort  -k 1,1 -c  test
sort: disorder: robert anderson
hermwas% /usr/xpg4/bin/sort  -k 1,1 -c  test
hermwas% /usr/xpg4/bin/sort  -k 2,2 -c  test1
hermwas% cat test
robert upton
robert anderson
robert botha
hermwas% cat test1
1 robert upton
2 robert anderson
3 robert botha

meklon% sort -k 1,1 -c  test 
sort: test:2: disorder: robert anderson
meklon% sort -k 2,2 -c  test1
meklon% cat test
robert upton
robert anderson
robert botha
meklon% cat test1
1 robert upton
2 robert anderson
3 robert botha