dtrace fails to build: Condition flavor 'config' in build setting 'STRIP_INSTALLED_PRODUCT[config=Debug][sdk=*]' is not supported

[barracuda156]

--->  Extracting dtrace-370.40.1.tar.gz
Executing:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_dtrace/dtrace/work" && /usr/bin/gzip -dc '/opt/local/var/macports/distfiles/dtrace/370.40.1_1/dtrace-370.40.1.tar.gz' | /usr/bin/gnutar --no-same-owner -xf - 
--->  Configuring dtrace
--->  Building dtrace
xcodebuild: Warning: configuration Deployment is not in the project.  Building default configuration.
=== BUILDING NATIVE TARGET libelf OF PROJECT dtrace WITH THE DEFAULT CONFIGURATION (Release) ===

Checking Dependencies...
Ignoring build settings configuration file static.xcconfig due to an error: Condition flavor 'config' in build setting 'STRIP_INSTALLED_PRODUCT[config=Debug][sdk=*]' is not supported.
Build setting $(PRODUCT_NAME) undefined
** BUILD FAILED **