Change 8036003 introduced the the '--with-native-debug-symbols' configure option the default of which is set to 'zipped'.

On AIX we can not generated external debug info and hence we also can not zip it. Currently the build breaks because of the missing dependencies from .diz to .debuginfo files.

The fix is simple - make 'internal' the default value for the '--with-native-debug-symbols' configure option on AIX.

As a temporary workaround one could configure with '--with-native-debug-symbols=internal' but in general the configuration/build should also succeed with the default value of the option.