Updated devel/p5-Config-Autoconf to 0.315
-----------------------------------------
0.315  2017-08-02
        - add check_builtin
        - perltidy code and add perltidy test (taken from MooX::Options)
        - ensure for many check_* methods that externally controlled
          ac_av_* environment variables are correctly passed into config.h
        - fix check_dirent_header to cache proving header and proving
          availability of 'DIR *' in such a header separately

(pkgsrc changes)
- Remove tweak lines for configure
| ALL_ENV+=    TMPDIR=${WRKDIR}/tmp
|
| pre-configure:
|        ${MKDIR} ${WRKDIR}/tmp

(mef)