svn commit: r504198 - head/Mk

[Gerald Pfeifer]

On Sat, 15 Jun 2019, Piotr Kubaj wrote:
> In my opinion, there are not many ports that have USE_GCC=any specified.

True, it's only 58 for USE_GCC=any versus 112 for USE_GCC=yes.

Still 58 ports that won't be tested with the compiler they are
(trying to be) built with on powerpc64.

> Most ports just need USES=compiler:*.

Yes, and that's where we should take action as well.

For example, Mk/Uses/compiler.mk has

  .if ${_COMPILER_ARGS:Mopenmp}
  .if ${COMPILER_TYPE} == clang
  USE_GCC=        yes
  CHOSEN_COMPILER_TYPE=   gcc
  .endif
  .endif

which means that anyone asking for compiler:openmp gets GCC 4.2,
unless I'm missing something.

Calling that a disservice is a euphemism.

Plus r504153 that jwb@ had to make to biology/ncbi-blast+ as a follow-up 
to his recent update is a perfect example of the disservice that using GCC 
4.2 by default on powerpc64 provides to its users:

  # Force newer GCC on platforms using GCC 4.2 as base
  .if ${CHOSEN_COMPILER_TYPE} == gcc
  USE_GCC=       yes
  .endif

This confirms my point that USE_GCC=any or what is practically
equivalent in compiler.mk should be converted to USE_GCC=yes.

Better for our users, better for our maintainers, and more
consistency across platforms.

Gerald