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tests: init.sh: support any non-GNU diff

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* tests/init.sh (compare): If "diff -c" is supported but "diff -u" is
not, use "diff -c".  Useful on AIX 6.1, HP-UX 11.31, OSF/1 5.1,
Solaris 8.
This commit is contained in:
Bruno Haible
2011-09-19 19:24:35 +02:00
committed by Jim Meyering
parent 9bb92a4db1
commit a4fa14849a
1 changed files with 2 additions and 0 deletions
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2
tests/init.sh
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@@ -223,6 +223,8 @@ cleanup_ () { :; }
if ( diff -u "$0" "$0" < /dev/null ) > /dev/null 2>&1; then
compare () { diff -u "$@"; }
elif ( diff -c "$0" "$0" < /dev/null ) > /dev/null 2>&1; then
compare () { diff -c "$@"; }
elif ( cmp --version < /dev/null 2>&1 | grep GNU ) > /dev/null 2>&1; then
compare () { cmp -s "$@"; }
else