require Apache::WeBWorK; # force compilation of pretty much everything
If I comment out that line, I can uncomment the entirety of the <Perl>...</Perl> section.
When I then uncomment line 65:
I receive the following response:
*** Error in `/usr/sbin/apache2': free(): corrupted unsorted chunks: 0x00007f99573f6350 ***
Aborted (core dumped)
Action 'start' failed.
The segmentation fault and the list of suggested "Maybe you should just omit the defined" occurs when both line 38 (require Apache::WeBWorK;) and line 65 (PerlModule WebworkSOAP) are uncommented.