On Wed, 24 Mar 2004, Curt, WE7U wrote: > Our application runs on multiple OS'es. A few of our WinXP users > (and perhaps Win2k, can't remember) have had "if test -c com1" hang > during our configure stage. > > We've already figured out that we should be using "/dev/ttyS0" > instead of "com1", and have switched to that. Because of the hang > we're trying "if test -d /proc/registry as the test". If > /proc/registry is found, we skip the file test for the serial device > on Cygwin boxes, thereby avoiding the hang. > > Excerpt (the version that hangs sometimes): > > > AC_DEFUN([XASTIR_DETECT_DEVICES], > [ > AC_MSG_CHECKING([for devices]) > if test -c com1 ; then > ac_tnc_port=com1 > ac_gps_port=com2 > elif test -c /dev/cuaa0 ; then > ac_tnc_port=/dev/cuaa0 > ac_gps_port=/dev/cuaa1 > > > New improved version: > > > AC_DEFUN([XASTIR_DETECT_DEVICES], > [ > AC_MSG_CHECKING([for devices]) > if test -d /proc/registry ; then > ac_tnc_port=/dev/ttyS0 > ac_gps_port=/dev/ttyS1 > elif test -c /dev/cuaa0 ; then > ac_tnc_port=/dev/cuaa0 > ac_gps_port=/dev/cuaa1 > > > Should "if test -c com1" or "if test -c /dev/ttyS0" work on Cygwin > across all Windows platforms it supports? > > We'd rather do "if test -c /dev/ttyS0" if possible, so that it's > similar across all platforms we support.
I should have completed more of the function above, as it's possible that it is one of the other tests that hangs on Cygwin/WinXP. Unlikely, but possible. I expect it hangs on the first test for "com1". Tack the following code onto the end of either code example above: elif test -c /dev/ttyS0 ; then ac_tnc_port=/dev/ttyS0 ac_gps_port=/dev/ttyS1 elif test -c /dev/cua/a ; then ac_tnc_port=/dev/cua/a ac_gps_port=/dev/cua/b else ac_tnc_port=none ac_gps_port=none fi -- Curt, WE7U archer at eskimo dot com Arlington, WA, USA http://www.eskimo.com/~archer "Lotto: A tax on people who are bad at math." -- unknown "Windows: Microsoft's tax on computer illiterates." -- WE7U "The world DOES revolve around me: I picked the coordinate system!" -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
