[Slackbuilds-users] fluidsynth slackbuild failure

[Tim Dickson]

when trying to create fluidsynth package with LADSPA=yes
and lash, portaudio and jack2 present i get
the compiling bombing out at

[ 95%] Linking C shared library libfluidsynth.so
CMakeFiles/libfluidsynth.dir/bindings/fluid_lash.c.o: In function 
`fluid_lash_create_thread':
/tmp/SBo/fluidsynth-1.1.6/src/bindings/fluid_lash.c:65: undefined 
reference to `pthread_create'
collect2: error: ld returned 1 exit status
src/CMakeFiles/libfluidsynth.dir/build.make:1110: recipe for target 
'src/libfluidsynth.so.1.5.2' failed
make[2]: *** [src/libfluidsynth.so.1.5.2] Error 1
CMakeFiles/Makefile2:183: recipe for target 
'src/CMakeFiles/libfluidsynth.dir/all' failed
make[1]: *** [src/CMakeFiles/libfluidsynth.dir/all] Error 2
Makefile:149: recipe for target 'all' failed
make: *** [all] Error 2

I've had a look at fluid_lash.c and it includes pthread.h and
/usr/include/pthread.h has a pthread_create function. Any ideas?
(I have assumed that jack2 is equivalent to jack-audio-connection-kit as 
they are mutually exclusive.)
(background... I'm trying to create all the deps for vlc).
regards, Tim