[Bug 219587] FLDigi claims the sound device is busy, crashes when clicking the sound settings

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219587

            Bug ID: 219587
           Summary: FLDigi claims the sound device is busy, crashes when
                    clicking the sound settings
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: freebsd-ports-bugs at FreeBSD.org
          Reporter: mcjgrice at gmail.com

Running FLDigi4.0.4 from ports, compiled with all options.

/dev/dsp0.0 is accessible by my user account and I get a good burst of static
if I use 'cat /dev/random > /dev/dsp0.0' as my normal user.

Pulseaudio and Portaudio remains unselectable in Audio options.

Trying to change the audio device crashes the application with this error:

****** Stack trace:
0x61a865
<_ZNSt3__1plIcNS_11char_traitsIcEENS_9allocatorIcEEEENS_12basic_stringIT_T0_T1_EEPKS6_RKS9_+0x1dcab5>
at /usr/local/bin/fldigi
0x6625e5
<_ZNSt3__1plIcNS_11char_traitsIcEENS_9allocatorIcEEEENS_12basic_stringIT_T0_T1_EEPKS6_RKS9_+0x224835>
at /usr/local/bin/fldigi
0x6623c9
<_ZNSt3__1plIcNS_11char_traitsIcEENS_9allocatorIcEEEENS_12basic_stringIT_T0_T1_EEPKS6_RKS9_+0x224619>
at /usr/local/bin/fldigi
0x8026e8b55 <pthread_create+0x925> at /lib/libthr.so.3



When running fldigi with the audio device /dev/dsp0.0, hitting TX freezes the
waterfall and spits multiple errors: 

E: trx_trx_transmit_loop: Sound error: Device busy. line: 352

'fstat | grep dsp' returns nothing.

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