Problem with Installation of GNU radio

I tried installing GNU radio in windows using cygwin. I did it as
was given on the website.
I initially built a minimal GNU radio system, with just omnithread,
gnuradio-core and gr-audio-oss modules enabled and it worked fine. Then
when I tried to build a full GNU radio system, it gave me the following
error in the usrp module-

  mkdir -p html
 xmlto html-nochunks ../../usrp/doc/usrp_guide.xml
 xmlto: input does not validate <status 1> error : Content error
the external subset
<! DOCTYPE html
^ error : Content error
the external subset
<! DOCTYPE html

make[4]: ***[usrp_guide.html] Error 1
make[4]: Leaving directory ‘/cygwin/c/cygwin/gnuradio-3.1.2/usrp/doc’
make[3]:***[all-recursive] Error 1
make[3]:Leaving directory ‘/cygwin/c/cygwin/gnuradio-3.1.2/usrp/doc’
make[2]:***[all-recursive] Error 1
make[2]:Leaving directory ‘/cygwin/c/cygwin/gnuradio-3.1.2/usrp’
make[1]:***[all-recursive] Error 1
make[1]:Leaving directory ‘/cygwin/c/cygwin/gnuradio-3.1.2’
make:***[all] Error 2

I have a USRP, so I need the usrp module. Could anyone please suggest
what I
could do ? Thanks.


View this message in context:
Sent from the GnuRadio mailing list archive at

Hi Prasanna, error : Content error
the external subset
<! DOCTYPE html

I have not been able to make xmlto work with the GNU Radio xml files on
Cygwin. Since this is just the documentation that is failing, you can
GNU Radio without it. One way is to get rid of xmlto (uninstall it with
Cygwin setup, remove it from /usr/bin, or rename it), then rerun
and try it again. Another solution is to edit usrp/doc/Makefile to
usrp_guide.html from the DOCBOOK_HTML_FILES line, but you will need to
this every time you run configure. The best solution (aside from making
xmlto work) would be to figure out how to tell configure to ignore

If anyone knows why xmlto doesn’t work (on Cygwin), please let us know.

– Don W.

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