Fixes Makefile for fir filter generators.
Adding new QA code for all other fir filters. fff and fsf versions currently failing.
Using generators to make gri_fir_filter_with_buffer_XXX into all possible in/out/tap types we support.
Merge branch 'synfilt'
Adding QA code for fir filter with buffer.
Cleaning up synthesis filter and using new FIR filter with buffer.
Cleaning up the new FIR filter implementation. Protects against some corner cases and adds filterN.
Adding a FIR filter implemented with its own internal buffer. This one keeps its own delay line and just takes in input samples instead of a pointer to an external buffer.
The synthesis filter is being updated to use the new FIR implementation.
Checks to make sure XML path is writable before making the XML runner. Ignores it if directory is now writable.
Fixed missing set_relative_rate in these two blocks. The others don't actually do it, even though it's counter-intuitive for the pfb_decimate, which is a sync_block (decimation actually care of in the stream_to_streams).
Updating all python QA programs in gnuradio-core to output XML files.
Also fixed gr_unittest.py to print to the screen and fail make check properly if there's an error.
Need to find a way to use XML runner with main() to fail make check and output to screen, too.
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