Re: v2.50 on cygwin fails tests 15 thru 21

[Akim Demaille]

Well, the problem is most probably what I said: a problem of shell.  I
just noticed that AC_PLAIN_SCRIPT does not output the /bin/sh line.
That must be the problem.  All these tests need it.  To be fixed.
I'll be back to you once this is fixed, thanks!

src/ace/tests % ./testsuite -d 15                                nostromo 18:09
=================================
Test suite for GNU Autoconf 2.50a
=================================
head con 15: m4sh.at:12        figure
ok
===========================
All 1 tests were successful
===========================
src/ace/tests % head configure                                   nostromo 18:09

if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

dir=`$as_expr X//1 : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
         X//1 : 'X\(//\)[^/]' \| \
         X//1 : 'X\(//\)$' \| \