can't build sigrok-cli (Slackware current)

On 2021/01/01 I upgraded to the latest version of Slackware current. I can't build sigrok-cli. I was able to build and install its prerequisite. I am using sbopkg and the latest version of Ponce's repository. I have included the last few lines of the build output hoping this will help. Any help/suggestions is greatly appreciated. Thank you.

Code:/usr/bin/ld: /usr/lib64/gcc/x86_64-slackware-linux/10.2.0/../../../../lib64/libsigrokdecode.so: undefined reference to `PyObject_CallFunctionObjArgs'
/usr/bin/ld: /usr/lib64/gcc/x86_64-slackware-linux/10.2.0/../../../../lib64/libsigrokdecode.so: undefined reference to `PyTuple_New'
/usr/bin/ld: /usr/lib64/gcc/x86_64-slackware-linux/10.2.0/../../../../lib64/libsigrokdecode.so: undefined reference to `PyObject_Str'
/usr/bin/ld: /usr/lib64/gcc/x86_64-slackware-linux/10.2.0/../../../../lib64/libsigrokdecode.so: undefined reference to `PyErr_Format'
/usr/bin/ld: /usr/lib64/gcc/x86_64-slackware-linux/10.2.0/../../../../lib64/libsigrokdecode.so: undefined reference to `PyTuple_Size'
/usr/bin/ld: /usr/lib64/gcc/x86_64-slackware-linux/10.2.0/../../../../lib64/libsigrokdecode.so: undefined reference to `PyErr_Occurred'
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:481: sigrok-cli] Error 1
make: *** [Makefile:366: all] Error 2

sigrok-cli: