PS print tools: mp, mptool and mimep.

Hi,

in version 3.7.1 the file configure.in contains

AC_ARG_ENABLE(duplex,
[ --disable-duplex disable duplex printing
[default=yes]], ,
enable_duplex="yes")

If you look carefully at this autoconf snippet you
will see that this actually _enables_ duplex printing.

To correct this you can replace "disable" by "enable".
This keeps the current behaviour to have duplex
enabled by default, see the appended patch.


The trailing ":" in the patch prevents the configure
script from exiting with an error when duplex printing
is turned _off_.
This error occurs due to the trap function for signal
0 which uses the return code of the last command

test x"$enable_duplex" = xyes && ...

as the exit code for the whole configure script.

ciao
Klaus