[patch] libstdc++/67173 Fix filesystem::canonical for Solaris 10.

[Jonathan Wakely]

On 16/09/15 19:58 +0100, Jonathan Wakely wrote:
>commit ef25038796485298ff8f040bc79e0d9a371171fa
>Author: Jonathan Wakely <jwakely@redhat.com>
>Date:   Wed Sep 16 18:07:32 2015 +0100
>
>    Implement filesystem::canonical() without realpath
>    
>    	PR libstdc++/67173
>    	* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check _XOPEN_VERSION
>    	and PATH_MAX for _GLIBCXX_USE_REALPATH.
>    	* config.h.in: Regenerate.
>    	* configure: Regenerate.
>    	* src/filesystem/ops.cc: (canonical) [!_GLIBCXX_USE_REALPATH]: Add
>    	alternative implementation.
>    	* testsuite/experimental/filesystem/operations/canonical.cc: New.
>    	* testsuite/experimental/filesystem/operations/exists.cc: Add more
>    	tests.
>    	* testsuite/experimental/filesystem/operations/absolute.cc: Add test
>    	variables.
>    	* testsuite/experimental/filesystem/operations/copy.cc: Likewise.
>    	* testsuite/experimental/filesystem/operations/current_path.cc:
>    	Likewise.
>    	* testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
>    	* testsuite/experimental/filesystem/operations/status.cc: Likewise.
>    	* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
>    	Likewise.

Committed to trunk.