Possible patch for sox build failure on 10.7

[Jan Stary]

On Aug 12 10:56:57, mojca at macports.org wrote:
> On 12 August 2017 at 10:36, Jan Stary wrote:
> >
> > libtool: link: /usr/bin/grep -E -e "^(sox_.*|lsx_(check_read_params|(close|open)_dllibrary|(debug(_more|_most)?|fail|report|warn)_impl|eof|fail_errno|filelength|find_(enum_(text|value)|file_extension)|getopt(_init)?|lpc10_(create_(de|en)coder_state|(de|en)code)|raw(read|write)|read(_b_buf|buf|chars)|realloc|rewind|seeki|sigfigs3p?|strcasecmp|tell|unreadb|write(b|_b_buf|buf|s)))$" ".libs/libsox.exp" > ".libs/libsox.expT"
> >
> > Can someone on 10.7 please check that this is the failing grep line?
> > (Not even in connection with SoX, just grep that regexp on anything.)
> 
> Confirming.

Thank you I will ask upstream whether the regexp can be simplified
(or is even up to date), to see if we can avoid the dependency on grep.

	Jan