When Modifying a Block Do We Have to Recompile Everything?

GNU Radio
1

HI,

I wanted to modify a block and use it. Will I have to recompile
everything
or can I just use it without compiling?
I’m still new to Linux, so if I need to compile can someone provide a
link
to some instructions to do so?

Thanks,

Frederick

2

On Tue, Aug 21, 2012 at 2:27 PM, Frederick L. [email protected]
wrote:

HI,

I wanted to modify a block and use it. Will I have to recompile everything
or can I just use it without compiling?
I’m still new to Linux, so if I need to compile can someone provide a link
to some instructions to do so?

Thanks,

Frederick

Frederick,

You will have to recompile and reinstall, but not everything. If you
are modifying a single block, you can just rebuild from that
components directory. You want to do the entire component to make sure
SWIG is initiated again to rebuild the Python interface. But this is
much quicker than rebuilding from the top source directory that would
walk through all directories (it won’t rebuild them, but the walking
takes time).

So if you are changing a block in gr-digital, you can just:

cd gr-digital
make
make test (or ctest)
sudo make install

Tom

3

On Tue, Aug 21, 2012 at 2:53 PM, Frederick L.
[email protected]wrote:

Thanks a lot Tom. It’s great to know that I don’t have to go through all
the directories because I was using the gnuradio_build option on the
build-gnuradio script to rebuild and it takes some time to complete. :slight_smile:

Thanks again

Frederick

Sorry for posting again, but when I try the above instructions the make
command fails. The error I get it this:

make: *** No targets specified and no makefile found. Stop.

Does the build-gnuradio script put makefiles into the directories for
you?
If not, is it possible to get the makefile else where or find a way
around
it?

4

On Tue, Aug 21, 2012 at 3:45 PM, Frederick L.
[email protected]wrote:

SWIG is initiated again to rebuild the Python interface. But this is

Sorry for posting again, but when I try the above instructions the make
command fails. The error I get it this:

make: *** No targets specified and no makefile found. Stop.

Does the build-gnuradio script put makefiles into the directories for you?
If not, is it possible to get the makefile else where or find a way around
it?

Nevermind, I found the correct directory. I was looking in the
gnuradio/gr-digital directroy instead of the gnuradio/build/gr-digital
directory.