Replaced USE_SOLARIS definition with __sun. #4

As per title.
Removal of USE_SOLARIS from autotools files will be done at a later stage, after replacement of USE_SOLARIS has been done throughout all TDE code.

@obache could you check/test whether this PR looks good? For following packages I can do similar replacements but for the first one I would like to have your feedback (relates to TDE/tde#74).
What about the __solaris__ define? Is that ok or should that be removed too?

I don't know about __solaris__, but neither GCC nor Oracle Solaris Studio cc define the macro now.

For smb4k/core/smb4kmounter.cpp, It should be replaced with __sun too, because it is used below alone, not with USE_SOLARIS.

I don't know about __solaris__, but neither GCC nor Oracle Solaris Studio cc define the macro now.

For smb4k/core/smb4kmounter.cpp, It should be replaced with __sun too, because it is used below alone, not with USE_SOLARIS.

Ok, thanks for the feedback. I will update the PR later tonight and push an update.

@obache I pushed an updated version of the commit. Please let me know what you think.

Although I don't have the opportunity to test it on Solaris, it looks right.

Although I don't have the opportunity to test it on Solaris, it looks right.

Thanks @SlavekB, I will wait for Obata-san to feedback before merging.

looks good.
(accidentally refused to review)

looks good.
(accidentally refused to review)

Thanks Obata-san. I will made similar changes for the other modules in coming days without creating PRs, unless I need to ask for some reasons.

Replaced USE_SOLARIS definition with __sun. #4

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