Got the following error on a pi3 running bookworm.

Linking gcc.linux.armv7l.exe.debug/syncterm
/usr/bin/ld: /home/mlp/syncterm-1.1/src/../3rdp/gcc.linux.armv7l.debug/cl/libcl
.a(sendmsg.o): in function `waitForObject':
sendmsg.c:(.text+0xed0): undefined reference to `pthread_yield'
collect2: error: ld returned 1 exit status
make: *** [GNUmakefile:104: gcc.linux.armv7l.exe.debug/syncterm] Error 1

I tried both:
make 
and
make SRC_ROOT=~/syncterm-1.1/src

Both end with this message.  I am guessing missing package but since the
dependencies are not documented (period!) I am having an issue guessing which
one.  Any ideas?  Thanks!

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