#! /bin/sh

# Test that `+=' works with standard header-vars.

. $srcdir/defs || exit 1

echo 'AC_SUBST(ZZZ)' >> configure.in

# If you do this in a real Makefile.am, I will kill you.
cat > Makefile.am << 'END'
mandir += foo
zq = zzz
END

$ACLOCAL || exit 1
$AUTOMAKE || exit 1
fgrep '@mandir@ foo' Makefile.in || exit 1

num=`grep '^mandir =' Makefile.in | wc -l`
test $num -eq 1