Issue #568 resolved
For release 5.21.0 commit 18cdea177f66403cf5510d022bd2b2e306445412 reactivates the autoconf check "for Atomic support". This breaks cross compiling on Linux with ptxdist for Linux with the following message:
checking for Atomic support... configure: error: in `/home/adahl/Work/bsp/***/build-target/monit-5.21.0/libmonit': configure: error: cannot run test program while cross compiling See `config.log' for more details configure: error: ./configure failed for libmonit
This worked fine with 5.20.0.