[MacPorts] #68148: libgit2 @1.7.1: builds fail with xcode clang 6 and earlier: error: unknown type name 'inline'

[MacPorts]

#68148: libgit2 @1.7.1: builds fail with xcode clang 6 and earlier: error: unknown
type name 'inline'
---------------------+----------------------
 Reporter:  mascguy  |      Owner:  mascguy
     Type:  defect   |     Status:  assigned
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.8.1
 Keywords:           |       Port:  libgit2
---------------------+----------------------
 Despite the project setting the C standard to 90 - which should (?) be
 sufficient - builds are failing due to keyword 'inline':

 {{{
 In file included from
 .../libgit2/work/libgit2-1.7.1/src/util/unix/posix.h:13:
 /opt/local/include/LegacySupport/dirent.h:60:8: error: unknown type name
 'inline'
 static inline struct dirent *__mpls_readdir(DIR *dir) {
        ^
 }}}

 More frustratingly, `libgit2-devel` was updated to to this version three
 weeks ago, and it built successfully across-the-board. (Including 10.5,
 based on local testing.) So it's not clear what else has changed in that
 short time.

 For now, the quick-and-easy approach is to blacklist Xcode Clang 6 and
 earlier. But this ticket will remain open, to track further discussion and
 investigation.

-- 
Ticket URL: <https://trac.macports.org/ticket/68148>
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