MFH: r549712

misc/wmjulia fix 13-Current build

Another instance of -fno-common issue.

While here:

• Add missig USE_XORG dependency
• Reorganize WRKSRC so we don't generate weird patches
• Pet linters

PR: 249462
Submitted by: jd.fbsd@goneja.de

Approved by: ports-secteam (blanket, runtime fix, -fno-common)