# Issue while installing GR 3.7 **URL:** \ **Category:** GNU Radio\ **Created:** [February 20, 2014, 11:00pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297 "2014-02-20T23:00:53Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Post date:** [February 20, 2014, 11:00pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/1 "2014-02-20T23:00:53Z")
Hello GR, While building GR 3.7 (clone it from [GitHub - gnuradio/gnuradio: GNU Radio – the Free and Open Software Radio Ecosystem](https://github.com/gnuradio/gnuradio)) on a Centos machine I got this error. In file included from /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.cc:27: /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.h:48: error: ‘mt19937’ in namespace ‘boost::random’ does not name a type /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.cc: In constructor ‘gr::blocks::message\_strobe\_random\_impl::message\_strobe\_random\_impl(pmt::pmt\_t, gr::blocks::message\_strobe\_random\_distribution\_t, float, float)’: /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.cc:57: error: class ‘gr::blocks::message\_strobe\_random\_impl’ does not have any field named ‘d\_rng’ /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.cc: In member function ‘void gr::blocks::message\_strobe\_random\_impl::update\_dist()’: /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.cc:89: error: ‘d\_rng’ was not declared in this scope make[2]: \*\*\* [gr-blocks/lib/CMakeFiles/gnuradio-blocks.dir/message\_strobe\_random\_impl.cc.o] Error 1 make[1]: \*\*\* [gr-blocks/lib/CMakeFiles/gnuradio-blocks.dir/all] Error 2 make: \*\*\* [all] Error 2 I did not figured out how to solve this issue . Any hints will be appreciated. Regards, – View this message in context: [http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435.html](http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 20, 2014, 11:29pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/2 "2014-02-20T23:29:43Z")
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 mt19937 refers to the standard mersenne twister random number generator used in boost; so this is your compiler complaining about boost::random not having that. Which version of boost does your centos machine have? Greetings Marcus On 20.02.2014 22:59, Ruecan wrote: > Hello GR, > > While building GR 3.7 (clone it from > [GitHub - gnuradio/gnuradio: GNU Radio – the Free and Open Software Radio Ecosystem · GitHub](https://github.com/gnuradio/gnuradio)) on a Centos machine I got > this error. > > In file included from > /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.cc:27: /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.h:48: error: > ‘mt19937’ in namespace ‘boost::random’ does not name a type > /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.cc: > In constructor > ‘gr::blocks::message\_strobe\_random\_impl::message\_strobe\_random\_impl(pmt::pmt\_t, gr::blocks::message\_strobe\_random\_distribution\_t, float, float)’: > /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.cc:57: error: class ‘gr::blocks::message\_strobe\_random\_impl’ does not have any > field named ‘d\_rng’ > /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.cc: > In member function ‘void > gr::blocks::message\_strobe\_random\_impl::update\_dist()’: > /raid/nae/gnuradio-3.7/gr-blocks/lib/message\_strobe\_random\_impl.cc:89: error: ‘d\_rng’ was not declared in this scope > make[2]: \*\*\* > [gr-blocks/lib/CMakeFiles/gnuradio-blocks.dir/message\_strobe\_random\_impl.cc.o] Error 1 > – View this message in context: > [http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435.html](http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). > \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Discuss-gnuradio > mailing list [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - [http://www.enigmail.net/](http://www.enigmail.net/) iQEcBAEBAgAGBQJTBoF2AAoJEAFxB7BbsDrLph4IAIZNzm1pWVh71uGVbZOmebbB xPEApwWsQCDyCUOaPGkUagximKQ2YJ3Ygacz1LxnXgUnlGUaA386OO8x0pYtpT20 me92586ElkQpQsAZUtkGivv3WDBb7bADXFWETXbztcB756Qomdv3ozPSS67eJ17z 9DfGg1Gto2d40AYOKEm2ddRCyKMmxV35nms8sD0peSRm3soQF6xmhmba7+uwv4oY VaRikxOMeHYo5k/jJv8FexKZeEIicOUFuxthynn3BR77Kady9YO3NcNRjPEdmb8Z nG6+UlwbUMXv05C++tsiJbW+OxdOZQkO52ywk8jFLrXiAGhvvyGYbUx+G1tncGY= =eQjh -----END PGP SIGNATURE----- ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 21, 2014, 4:38pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/3 "2014-02-21T16:38:45Z")
Should be 🙂 Just as side info: [http://www.boost.org/doc/libs/1\_54\_0/doc/html/boost/random/mt19937.html](http://www.boost.org/doc/libs/1_54_0/doc/html/boost/random/mt19937.html) Sorry, totally running low on clues here… This is twice as strange since boost::random is missing mt19937; if it was std:: I’d guess on a non-C++11 standard library, but like it is… If cleaning and rebuilding doesn’t help, make sure that libstdc+±devel is correctly installed Basically, it should be right here: [http://www.boost.org/doc/libs/1\_54\_0/boost/random/mersenne\_twister.hpp](http://www.boost.org/doc/libs/1_54_0/boost/random/mersenne_twister.hpp) and is included. AAAAAAAAAAAND bam. Found the bug. header include protection by #ifdef at the very beginning of the file. you might pull my bugfix from [GitHub - marcusmueller/gnuradio: GNU Radio](https://github.com/marcusmueller/gnuradio.git); git pull [GitHub - marcusmueller/gnuradio: GNU Radio](https://github.com/marcusmueller/gnuradio.git) master\_fix\_message\_strobe\_random\_ifndef Greetings, Marcus ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 21, 2014, 4:02pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/4 "2014-02-21T16:02:16Z")
Thanks Marcus, Actually the boost version I have is 1.54.0. Is this ok ? – View this message in context: [http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435p46451.html](http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435p46451.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 21, 2014, 4:52pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/5 "2014-02-21T16:52:54Z")
Ruecan: I got carried away. This is indeed a bugfix for the header file not being processed in some cases, but since the error appeared although actually processing the fixed header file, I’ve run out of ideas, still. ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 21, 2014, 5:26pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/6 "2014-02-21T17:26:27Z")
Yeah, start completely clean. Very Respectfully, Dan CaJacob ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 21, 2014, 5:18pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/7 "2014-02-21T17:18:47Z")
I just pulled the changes then did make but get the same error. I am not so familiar with git. After pulling your bugfix, do I need to make clean, remove the CMakeCache then do cmake again then make or am I missing some part of the process. – View this message in context: [http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435p46457.html](http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435p46457.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 21, 2014, 5:33pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/8 "2014-02-21T17:33:31Z")
good find, this was probably my fault - sorry We should consider changing headers to use “#pragma once” which is simpler and less error prone do people still use gcc older than 3.4 ? I think this is pretty widely supported now not sure if that would cause swig issues as well - -Tim ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 21, 2014, 5:59pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/9 "2014-02-21T17:59:26Z")
Guys, I re make from clean but still got the same error. PS: after pulling the bugfix, do I need to execute any other command, other than \*git pull [GitHub - marcusmueller/gnuradio: GNU Radio · GitHub](https://github.com/marcusmueller/gnuradio.git) master\_fix\_message\_strobe\_random\_ifndef \* Tim, I did not get what you mean by Tim O’Shea wrote > changing headers to use “#pragma once” – View this message in context: [http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435p46461.html](http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435p46461.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 21, 2014, 6:00pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/10 "2014-02-21T18:00:01Z")
Well don’t worry, it wasn’t actually causing problems 😉 After fixing, I got out my zsh-foo and tried echo $(( $(git ls-files |grep .h$|xargs git grep --heading “#ifndef INCLUDED”|wc -l) - $(git ls-files |grep .h$|xargs git grep --heading “#ifndef INCLUDED”| uniq | wc -l) )) luckily, there are no duplicate lines containing #ifndef INCLUDED, so I’m hopeful enough everything else is fine in current master. I agree on the #pragma once suggestion, and choose to believe [pragma once - Wikipedia](http://en.wikipedia.org/wiki/Pragma_once#Portability) which says that we should maybe suggest that people move away from gcc 3.4. Although I don’t think this would break a relevant numbers of GNU Radio environments, it could be something maintainers might want to save up for 3.8 or 4 😉 Greetings, Marcus ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 21, 2014, 6:02pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/11 "2014-02-21T18:02:58Z")
Hi Ruecan, this just the question if we should move away from #ifndef INCLUDED\_FILENAME\_OF\_HEADER\_H #define INCLUDED\_FILENAME\_OF\_HEADER\_H #endif to the more sanity-ensuring #pragma once preprocessor directive. Sadly, this was not related to your problem… Still have no idea what’s causing your problems. Greetings, Marcus ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [March 21, 2014, 9:59pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/12 "2014-03-21T21:59:44Z")
Has anyone found a fix for this? I will not be using the message\_strobe\_random block and am very time limited, so I simply added an #ifdef _DO\_NOT\_BUILD_ at the beginning of the cc and h files, but would like to know the correct solution. Thanks, - Kevin ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [February 21, 2014, 9:26pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/13 "2014-02-21T21:26:12Z")
Do you think that if I go back and try to install GR 3.7.0 instead, it may work ? – View this message in context: [http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435p46466.html](http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435p46466.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [March 26, 2014, 2:28pm UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/14 "2014-03-26T14:28:59Z")
Incredibly simple fix. In ./gnuradio\_src/gr-blocks/lib/message\_strobe\_random\_impl.h, change: ``` boost::random::mt19937 d_rng; ``` to: ``` boost::mt19937 d_rng; ``` Done. ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [March 30, 2014, 7:51am UTC](https://www.ruby-forum.com/t/issue-while-installing-gr-3-7/239297/15 "2014-03-30T07:51:27Z")
I’m on CentOS 6.5 and just hit this same issue – the default version of boost for this rev of the OS is 1.41.0-18.el6 – it does appear to be there, but I get the same error as the original poster did (I used the > **[Live Draw HK Tercepat | Result HK | HK Pools | Live HK | HK Prize Hari Ini](https://www.sbrac.org/)** > > Temukan live draw hk tercepat melalui halaman hk pools yang resmi dan dapatkan result hk prize melalui live hk secara langsung di situs kami. build-gnuradio script). From the header (/usr/include/boost/random/mersenne\_twister.hpp): /typedef random::mersenne\_twister\ mt19937;/ In file included from /usr/local/src/gnuradio/gnuradio/gr-blocks/lib/message\_strobe\_random\_impl.cc:27: /usr/local/src/gnuradio/gnuradio/gr-blocks/lib/message\_strobe\_random\_impl.h:48: error: ‘mt19937’ in namespace ‘boost::random’ does not name a type – View this message in context: [http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435p47304.html](http://gnuradio.4.n7.nabble.com/Issue-while-installing-GR-3-7-tp46435p47304.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com).