The README in cextern says to follow the comments in setup.cfg in order to configure the build to use the system CFITSIO. But at some point those comments were removed (possibly by a tool using ConfigParser).

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2347 ed100bfc-0583-0410-97f2-c26b58777a21
This is necessary to support compiling with older system installs of CFITSIO (older than 3.35 anyways--I don't think any older that 3.28 will work at all)

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2348 ed100bfc-0583-0410-97f2-c26b58777a21
Backported astropy/astropy#968 including updates for Python 2.5.  Will backport this fix to PyFITS 3.1.x and 3.0.x branches

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2351 ed100bfc-0583-0410-97f2-c26b58777a21
Merge pull request #996 from iguananaut/issue-996

Column.null not used when writing FITS table?
Conflicts:

	CHANGES.rst
	astropy/io/fits/column.py
	lib/pyfits/hdu/table.py

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2356 ed100bfc-0583-0410-97f2-c26b58777a21
Ignore warning produced by known issue for now; see https://github.com/spacetelescope/PyFITS/issues/44

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2357 ed100bfc-0583-0410-97f2-c26b58777a21
Fix an obscure issue in one of the tests related to Windows, older versions of Python, and float('nan')