[patch, libgfortran] Bug 48030 - Implement read_x using fbuf_getc

[Jerry DeLisle]

Hi,

The attached patch re-implements read_x using fbuf_getc.  Self explanatory.

Regression tested on x86-64 linux.  No new test case needed.

Ok for trunk?

Regards,

Jerry

2011-03-19  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/48030
	* io/read.c (read_x): Re-implement using fbuf_getc.
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