clang6 is much stricter than previous compilers.  Hundreds of packages are no longer buildable due to this.  (This affects both -CURRENT and 11-STABLE.)

Advice on how to fix these would be appreciated!

==== Tracking PR ====

  * tracking PR for regressions on [[https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224669|clang6]]

==== Types Of Errors Seen ====

Here is an excerpt from the sorted analysis of build errors from the latest **armv7** run as built by linimon.  The [[https://people.freebsd.org/~linimon/tmp/clang6_regressions_summarized.txt|whole list]] is available.

  * (*29)  invalid suffix on literal; C++11 requires a space between literal and identifier [-Wreserved-user-defined-literal]
  * (*20)  non-constant-expression cannot be narrowed from type '[foo]' in initializer list [-Wc++11-narrowing]
  * (*15)  invalid operands to binary expression ('[foo]')
  * (*12)  constant expression evaluates to [foo] which cannot be narrowed to type '[foo]' [-Wc++11-narrowing]
  * (*9)  comparison between pointer and integer ('[foo]')
  * (*8)  assigning to '[foo]'
  * (*7)  cannot initialize return object of type '[foo]'
  * (*6)  no matching function for call to '[foo]'
  * (*5)  unresolvable R_ARM_MOVW_ABS_NC relocation against symbol '[foo]'
  * (*3)  in-class initializer for static data member of type '[foo]' specifier [-Wstatic-float-init]
  * (*3)  UNREACHABLE executed at /tank/poudriere/jails/head-2018Q2-armv7/usr/src/contrib/llvm/lib/%%CodeGen%%/%%IfConversion%%.cpp:2004!

Here are some other cases that do not sort as easily:

  * cannot compute sizeof (unsigned short), 77; not always 'unsigned short'.  These seem to be in the configure phase.

=== Notes ===

Some of [[/MarkLinimon|MarkLinimon]]'s raw notes are [[https://people.freebsd.org/~linimon/tmp/aarch64_current_regressions.txt|here]], [[https://people.freebsd.org/~linimon/tmp/amd64_maybe.txt|here]], and [[https://people.freebsd.org/~linimon/tmp/clang6_regressions.work|here]].

==== How To Help ====

[[/MarkLinimon|MarkLinimon]] can provide the wrkdirs on request.  (The whole directory is kind of large.)

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{{tag>Ports Todo}}