[MacPorts] #68420: scrcpy @2.1.1: build fails on OS X 10.10

[MacPorts]

#68420: scrcpy @2.1.1: build fails on OS X 10.10
----------------------+--------------------
 Reporter:  aprovera  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Low       |  Milestone:
Component:  ports     |    Version:  2.8.1
 Keywords:  yosemite  |       Port:  scrcpy
----------------------+--------------------
 I've recently submitted a PR which successfully added support for old OS X
 versions (10.6 x86_64, 10.7, 10.8, 10.9, 10.11).

 However the build still fails on 10.10 (which uses compiler clang
 700.1.81), with the following error:

 {{{
 use of unknown builtin '__builtin_mul_overflow' [-Wimplicit-function-
 declaration]
 }}}

 Through a quick search on the GitHub repository, I've found out this exact
 issue [https://github.com/macports/macports-
 ports/blob/0e4e22da033d380dedbd6676765c7406f7df1c56/devel/ld64/Portfile#L225
 was addressed in port ld64], as follows:


 {{{
 # clang 700.1.81 (10.10) fails with error: use of undeclared identifier
 '__builtin_mul_overflow'
 compiler.blacklist-append *gcc* {clang < 701}
 }}}

 This could therefore almost certainly be fixed in scrcpy by changing the
 current blacklist of 700 to 701.

 I've marked it as low priority, as there's a good chance the number of
 affected users at this time is close to zero, so it can probably wait
 until the next version update to be fixed.

-- 
Ticket URL: <https://trac.macports.org/ticket/68420>
MacPorts <https://www.macports.org/>
Ports system for macOS