capstone: Build for the right architectures

[ryandesign]

Description

capstone:

• Build for the right architectures.
• Disable silent rules.

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS 10.13.6 17G65
Xcode 9.4.1 9F2000

Verification

Have you

• followed our Commit Message Guidelines?
• squashed and minimized your commits?
• checked that there aren't other open pull requests for the same change?
• referenced existing tickets on Trac with full URL?

• checked your Portfile with port lint?
• tried existing tests with sudo port test?
• tried a full install with sudo port -vst install?
• tested basic functionality of all binary files?

[macportsbot]

Travis Build #3823 Passed.

Lint results

--->  Verifying Portfile for capstone
--->  0 errors and 0 warnings found.

Port capstone success on xcode9.4. Log
Port capstone success on xcode8.3. Log
Port capstone success on xcode7.3. Log

[macportsbot]

Travis Build #3834 Passed.

Lint results

--->  Verifying Portfile for capstone
--->  0 errors and 0 warnings found.

Port capstone success on xcode9.4. Log
Port capstone success on xcode8.3. Log
Port capstone success on xcode7.3. Log
Port capstone success on xcode10. Log

[pmetzger]

Merged. Thanks, @ryandesign!