# Latest

**URL:** https://www.ruby-forum.com/latest.md?page=549

[Latest](https://www.ruby-forum.com/latest.md) · [Categories](https://www.ruby-forum.com/categories.md) · [Tags](https://www.ruby-forum.com/tags.md)

**Page:** 550

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## [IEEE 802.11 a/g/p receiver](https://www.ruby-forum.com/t/ieee-802-11-a-g-p-receiver/227814)

<div class="topic-metadata">

**Author:** [@Bastian\_B](https://www.ruby-forum.com/u/Bastian_B)\
**Replies:** 7\
**Last updated:** [September 2, 2013, 2:39am UTC](https://www.ruby-forum.com/t/ieee-802-11-a-g-p-receiver/227814 "2013-09-02T02:39:44Z")

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Hello all, I’m currently working on an IEEE 802.11 a/g/p receiver and I think that meanwhile it has reached a state where others might be interested. With my desktop PC I can decode 20MHz bandwidth signals without any…

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## [OFDM with GRC demod problem](https://www.ruby-forum.com/t/ofdm-with-grc-demod-problem/246165)

<div class="topic-metadata">

**Author:** [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\
**Replies:** 0\
**Last updated:** [September 2, 2013, 1:11am UTC](https://www.ruby-forum.com/t/ofdm-with-grc-demod-problem/246165 "2013-09-02T01:11:58Z")

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Hi, I’m doing an OFDM radio system with GRC. I have built the whole system. the output of transmitter looks good, but the output of OFDM demodulation block has no waveform. Can anyone help me ? untitled1111.grc htt…

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## [Unable to do rake command because of Ruby](https://www.ruby-forum.com/t/unable-to-do-rake-command-because-of-ruby/236413)

<div class="topic-metadata">

**Author:** [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Replies:** 1\
**Last updated:** [September 2, 2013, 12:31am UTC](https://www.ruby-forum.com/t/unable-to-do-rake-command-because-of-ruby/236413 "2013-09-02T00:31:40Z")

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Previously I have been trying to install ruby and rails and used apt-get at one point. I did install previous versions of ruby and rails by mistake which I had to correct. Now I used rvm to install ruby 2.0.0 and ra…

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## [Unable to do rake command](https://www.ruby-forum.com/t/unable-to-do-rake-command/236411)

<div class="topic-metadata">

**Author:** [@alcina](https://www.ruby-forum.com/u/alcina)\
**Replies:** 5\
**Last updated:** [September 2, 2013, 12:11am UTC](https://www.ruby-forum.com/t/unable-to-do-rake-command/236411 "2013-09-02T00:11:53Z")

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Previously I have been trying to install ruby and rails and used apt-get at one point. I did install previous versions of ruby and rails by mistake which I had to correct. Now I used rvm to install ruby 2.0.0 and ra…

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## [A minimal alternative to ERB!](https://www.ruby-forum.com/t/a-minimal-alternative-to-erb/236332)

<div class="topic-metadata">

**Author:** [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Replies:** 8\
**Last updated:** [September 1, 2013, 8:17pm UTC](https://www.ruby-forum.com/t/a-minimal-alternative-to-erb/236332 "2013-09-01T20:17:11Z")

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Hi guys, I have tried to understand how ERB works and I have designed my own template engine : {% statement %} and {{ expression }}. I want to share the code with you : https://gist.github.com/astraction/6351299 Onl…

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## [Too Much Matrix: Iterating over Each matrix cell w/o passing the complete thing all the time?](https://www.ruby-forum.com/t/too-much-matrix-iterating-over-each-matrix-cell-w-o-passing-the-complete-thing-all-the-time/236403)

<div class="topic-metadata">

**Author:** [@alcina](https://www.ruby-forum.com/u/alcina)\
**Replies:** 7\
**Last updated:** [September 1, 2013, 7:01pm UTC](https://www.ruby-forum.com/t/too-much-matrix-iterating-over-each-matrix-cell-w-o-passing-the-complete-thing-all-the-time/236403 "2013-09-01T19:01:44Z")

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Okay, where to start? Sounds like the beginning of a joke, you have a fancy data table, a splendid output table and a method. You use the method to calculate a splendid number out of the data table and store it in the…

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## [Gr-digital / gmsk\_demod M&M vs PFB](https://www.ruby-forum.com/t/gr-digital-gmsk-demod-m-m-vs-pfb/236400)

<div class="topic-metadata">

**Author:** [@alcina](https://www.ruby-forum.com/u/alcina)\
**Replies:** 1\
**Last updated:** [September 1, 2013, 4:18pm UTC](https://www.ruby-forum.com/t/gr-digital-gmsk-demod-m-m-vs-pfb/236400 "2013-09-01T16:18:40Z")

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In looking at gmsk\_demod currently, it is using M&M clock recovery, but here: http://gnuradio.org/redmine/projects/gnuradio/repository/revisions/2f75b230e1a54ce10900ad37520dd03ff01685e8/entry/gr-digital/python/gmsk.py …

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## [GNU Radio / USRP Alternatives --- \> Re: GRCon13 Hardware Giveaway!](https://www.ruby-forum.com/t/gnu-radio-usrp-alternatives-re-grcon13-hardware-giveaway/246151)

<div class="topic-metadata">

**Author:** [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\
**Replies:** 0\
**Last updated:** [September 1, 2013, 3:37pm UTC](https://www.ruby-forum.com/t/gnu-radio-usrp-alternatives-re-grcon13-hardware-giveaway/246151 "2013-09-01T15:37:47Z")

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Ian, While I am unaware of how qualitative the Lime Micro Systems Chips are, what worry’s me about these GNU Radio / USRP Alternatives: Fairwaves UmTRX Lime Micro MyriadRF Loctronix A-2300 Is that all the above li…

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## [Basic doubt in MVC - RoR](https://www.ruby-forum.com/t/basic-doubt-in-mvc-ror/236404)

<div class="topic-metadata">

**Author:** [@alcina](https://www.ruby-forum.com/u/alcina)\
**Replies:** 5\
**Last updated:** [September 1, 2013, 12:57pm UTC](https://www.ruby-forum.com/t/basic-doubt-in-mvc-ror/236404 "2013-09-01T12:57:43Z")

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Hi, I’m with a very basic doubt in MVC in RoR. I’m new at RoR, I had never developed an app in Rails since the beggining, just few things separately. I want to have a sign in page, like the first page the user see. …

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## [New USRP Instant Kit (B100 + WBX) for sale within EU](https://www.ruby-forum.com/t/new-usrp-instant-kit-b100-wbx-for-sale-within-eu/246116)

<div class="topic-metadata">

**Author:** [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\
**Replies:** 0\
**Last updated:** [September 1, 2013, 12:24pm UTC](https://www.ruby-forum.com/t/new-usrp-instant-kit-b100-wbx-for-sale-within-eu/246116 "2013-09-01T12:24:15Z")

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Hello, I am selling a new USRP Instant Kit, which consists of the B100, the WBX-daugther-board and an Linux-Live Distribution on an USB3.0 Stick. I bought it in 2013. It comes fully functional, with all accessories, a…

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## [GNU Radio / USRP Alternatives since the Ettus Products aren't trully open source](https://www.ruby-forum.com/t/gnu-radio-usrp-alternatives-since-the-ettus-products-arent-trully-open-source/236405)

<div class="topic-metadata">

**Author:** [@alcina](https://www.ruby-forum.com/u/alcina)\
**Replies:** 0\
**Last updated:** [September 1, 2013, 3:33am UTC](https://www.ruby-forum.com/t/gnu-radio-usrp-alternatives-since-the-ettus-products-arent-trully-open-source/236405 "2013-09-01T03:33:28Z")

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Ian, While I am unaware of how qualitative the Lime Micro Systems Chips are, what worry’s me about these GNU Radio / USRP Alternatives: Fairwaves UmTRX Lime Micro MyriadRF Loctronix A-2300 Is that all the above li…

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## [Coverage report is different between load and require?](https://www.ruby-forum.com/t/coverage-report-is-different-between-load-and-require/236401)

<div class="topic-metadata">

**Author:** [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Replies:** 1\
**Last updated:** [September 1, 2013, 12:11am UTC](https://www.ruby-forum.com/t/coverage-report-is-different-between-load-and-require/236401 "2013-09-01T00:11:27Z")

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I’m trying to understand why using load vs require results in different coverage reports. I’m writing a gem with dynamically loaded code that was previously not detected by SimpleCov. I was able to partially fix this …

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## [\[ANN\] Ruboto 0.14.0 released!](https://www.ruby-forum.com/t/ann-ruboto-0-14-0-released/236402)

<div class="topic-metadata">

**Author:** [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Replies:** 0\
**Last updated:** [August 31, 2013, 11:44pm UTC](https://www.ruby-forum.com/t/ann-ruboto-0-14-0-released/236402 "2013-08-31T23:44:30Z")

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The Ruboto team is pleased to announce the release of Ruboto 0.14.0. Ruboto (JRuby on Android) is a platform for developing full stand-alone apps for Android using the Ruby language and libraries. It includes support…

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## [Installing rbosa on mac 10.6.8](https://www.ruby-forum.com/t/installing-rbosa-on-mac-10-6-8/246140)

<div class="topic-metadata">

**Author:** [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\
**Replies:** 0\
**Last updated:** [August 31, 2013, 5:22pm UTC](https://www.ruby-forum.com/t/installing-rbosa-on-mac-10-6-8/246140 "2013-08-31T17:22:59Z")

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I am a complete noob at all this. I want to learn ruby to build script that can interact with the system like the way applescript dose. I found a ruby script online that requires rbosa to run so i went on the website h…

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## [WavFile\_Sink Issues: slowed down sound - multiplied playing time](https://www.ruby-forum.com/t/wavfile-sink-issues-slowed-down-sound-multiplied-playing-time/246101)

<div class="topic-metadata">

**Author:** [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\
**Replies:** 5\
**Last updated:** [August 31, 2013, 4:19pm UTC](https://www.ruby-forum.com/t/wavfile-sink-issues-slowed-down-sound-multiplied-playing-time/246101 "2013-08-31T16:19:26Z")

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So I clearly have a sample rate mis-match. I am trying to record the audio from the gr-dsd block. I don’t seem to have an issue doing it using GRC. However when I try doing using C++ the audio sounds extra slow and ch…

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## [What is simplest way to convert Request-URI to lowercase?](https://www.ruby-forum.com/t/what-is-simplest-way-to-convert-request-uri-to-lowercase/236383)

<div class="topic-metadata">

**Author:** [@alcina](https://www.ruby-forum.com/u/alcina)\
**Replies:** 1\
**Last updated:** [August 31, 2013, 2:56pm UTC](https://www.ruby-forum.com/t/what-is-simplest-way-to-convert-request-uri-to-lowercase/236383 "2013-08-31T14:56:28Z")

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Hello, We are using nginx heavily. We need to rewrite all request URIs into lowercase, e.g, http://foo.bar/ThiS\_will\_be\_Rewritten/?q=Foobar will be translated into http://foo.bar/this\_will\_be\_rewritten/?q=foobar I …

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## [How to install gruel "missing" from gnuradio-3.7.0](https://www.ruby-forum.com/t/how-to-install-gruel-missing-from-gnuradio-3-7-0/246152)

<div class="topic-metadata">

**Author:** [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\
**Replies:** 0\
**Last updated:** [August 31, 2013, 2:52pm UTC](https://www.ruby-forum.com/t/how-to-install-gruel-missing-from-gnuradio-3-7-0/246152 "2013-08-31T14:52:07Z")

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Solution to gruel failure to compile and install - gnuradio-3.7.0 and probably 3.7.1 follows. Note that making these changes does not subsequently permit building gruel with the normal gnuradio build and install. It…

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## [Need help on Object#respond\_to?](https://www.ruby-forum.com/t/need-help-on-object-respond-to/246034)

<div class="topic-metadata">

**Author:** [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\
**Replies:** 8\
**Last updated:** [August 31, 2013, 2:12pm UTC](https://www.ruby-forum.com/t/need-help-on-object-respond-to/246034 "2013-08-31T14:12:56Z")

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I just have seen from the documentation of Object#respond\_to? (Class: Object (Ruby 2.0.0)) the below two lines : If the method is not implemented, as Process.fork on Windows, File.lchmod on GNU/Linux, etc., false i…

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## [Gettext 3.0.0](https://www.ruby-forum.com/t/gettext-3-0-0/236399)

<div class="topic-metadata">

**Author:** [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Replies:** 0\
**Last updated:** [August 31, 2013, 2:03pm UTC](https://www.ruby-forum.com/t/gettext-3-0-0/236399 "2013-08-31T14:03:53Z")

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Hi, The ruby-gettext project has been released gettext 3.0.0. Web: http://ruby-gettext.github.io/ Install: gem install gettext Gettext gem is the localization(L10N) library and tools which is modeled after GNU gette…

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## [Actionmailer - heroku app](https://www.ruby-forum.com/t/actionmailer-heroku-app/236313)

<div class="topic-metadata">

**Author:** [@alcina](https://www.ruby-forum.com/u/alcina)\
**Replies:** 4\
**Last updated:** [August 31, 2013, 1:48pm UTC](https://www.ruby-forum.com/t/actionmailer-heroku-app/236313 "2013-08-31T13:48:02Z")

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This is a newbie question so please excuse me, I have been working with rails, but this is the first time i am trying to require gems from a heroku app that does not include rails - just a plain Ruby app. ok I have a …

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## [UHD doesn't work](https://www.ruby-forum.com/t/uhd-doesnt-work/236397)

<div class="topic-metadata">

**Author:** [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Replies:** 0\
**Last updated:** [August 31, 2013, 12:53pm UTC](https://www.ruby-forum.com/t/uhd-doesnt-work/236397 "2013-08-31T12:53:09Z")

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Hello. I used ./build-gnuradio script. Now, when I try to run any UHD related application I get this error: $ uhd\_fft Traceback (most recent call last): File “/usr/local/bin/uhd\_fft”, line 25, in from gnuradio imp…

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## [How to capture HTTP packs send by browser?](https://www.ruby-forum.com/t/how-to-capture-http-packs-send-by-browser/236398)

<div class="topic-metadata">

**Author:** [@alcina](https://www.ruby-forum.com/u/alcina)\
**Replies:** 0\
**Last updated:** [August 31, 2013, 11:59am UTC](https://www.ruby-forum.com/t/how-to-capture-http-packs-send-by-browser/236398 "2013-08-31T11:59:01Z")

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How to capture HTTP packs send by browser in ruby,someone has good idea?

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## [\[ruby-trunk - Feature #8838\]\[Open\] Enhancing Numeric#step](https://www.ruby-forum.com/t/ruby-trunk-feature-8838-open-enhancing-numeric-step/246149)

<div class="topic-metadata">

**Author:** [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\
**Replies:** 1\
**Last updated:** [August 31, 2013, 10:30am UTC](https://www.ruby-forum.com/t/ruby-trunk-feature-8838-open-enhancing-numeric-step/246149 "2013-08-31T10:30:07Z")

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Issue #8838 has been reported by knu (Akinori MUSHA). Feature #8838: Enhancing Numeric#step Author: knu (Akinori MUSHA) Status: Open Priority: Normal Assignee: matz (Yukihiro M.) Category: misc Target version: c…

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## [\[ruby-trunk - Feature #8696\]\[Open\] Process.setproctitle](https://www.ruby-forum.com/t/ruby-trunk-feature-8696-open-process-setproctitle/235977)

<div class="topic-metadata">

**Author:** [@alcina](https://www.ruby-forum.com/u/alcina)\
**Replies:** 15\
**Last updated:** [August 31, 2013, 10:27am UTC](https://www.ruby-forum.com/t/ruby-trunk-feature-8696-open-process-setproctitle/235977 "2013-08-31T10:27:46Z")

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Issue #8696 has been reported by znz (Kazuhiro NISHIYAMA). Feature #8696: Process.setproctitle Author: znz (Kazuhiro NISHIYAMA) Status: Open Priority: Normal Assignee: Category: Target version: $0= と同じ機能が$変数を使わ…

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## [New to Ruby want to learn more](https://www.ruby-forum.com/t/new-to-ruby-want-to-learn-more/236381)

<div class="topic-metadata">

**Author:** [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Replies:** 4\
**Last updated:** [August 31, 2013, 9:41am UTC](https://www.ruby-forum.com/t/new-to-ruby-want-to-learn-more/236381 "2013-08-31T09:41:01Z")

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Hi All, I am new to Ruby on rails. can any one please tell me is net beans best ide for ruby? if not can any one suggest a good IDE for begineer. Thanks Vijay

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## [\[ruby-trunk - Feature #8726\]\[Open\] Class#source\_location](https://www.ruby-forum.com/t/ruby-trunk-feature-8726-open-class-source-location/236071)

<div class="topic-metadata">

**Author:** [@alcina](https://www.ruby-forum.com/u/alcina)\
**Replies:** 13\
**Last updated:** [August 31, 2013, 6:29am UTC](https://www.ruby-forum.com/t/ruby-trunk-feature-8726-open-class-source-location/236071 "2013-08-31T06:29:58Z")

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Issue #8726 has been reported by takiuchi (Genki Takiuchi). Feature #8726: Class#source\_location Author: takiuchi (Genki Takiuchi) Status: Open Priority: Normal Assignee: Category: Target version: current: 2.1.0 …

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## [Binman 3.3.2 - man pages for bin scripts](https://www.ruby-forum.com/t/binman-3-3-2-man-pages-for-bin-scripts/246096)

<div class="topic-metadata">

**Author:** [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\
**Replies:** 0\
**Last updated:** [August 31, 2013, 4:01am UTC](https://www.ruby-forum.com/t/binman-3-3-2-man-pages-for-bin-scripts/246096 "2013-08-31T04:01:00Z")

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binman produces UNIX manual pages for executable scripts using md2man. It supports any scripting language that either has multi-line comments or uses # for single-line comments, such as Ruby, Perl, Python, Node.js,…

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## [OS X Snow Leopard + wxRuby 2.0.1 gem - WORKING](https://www.ruby-forum.com/t/os-x-snow-leopard-wxruby-2-0-1-gem-working/191192)

<div class="topic-metadata">

**Author:** [@absolute-beginner](https://www.ruby-forum.com/u/absolute-beginner)\
**Replies:** 13\
**Last updated:** [August 31, 2013, 3:17am UTC](https://www.ruby-forum.com/t/os-x-snow-leopard-wxruby-2-0-1-gem-working/191192 "2013-08-31T03:17:35Z")

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Hi It is possible to use the standard wxRuby 2.0.1 gem with the standard system ruby in /usr/bin/ruby in OS X 10.6 download the gem http://rubyforge.org/frs/download.php/63386/wxruby-2.0.1-universal-darwin-9.gem i…

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## [Gr-ais errors: ais\_extended\_lms\_dfe\_ff](https://www.ruby-forum.com/t/gr-ais-errors-ais-extended-lms-dfe-ff/246095)

<div class="topic-metadata">

**Author:** [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\
**Replies:** 0\
**Last updated:** [August 31, 2013, 1:59am UTC](https://www.ruby-forum.com/t/gr-ais-errors-ais-extended-lms-dfe-ff/246095 "2013-08-31T01:59:17Z")

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cmake produces the output below when trying to build grais from git clone git://github.com/chgans/gr-ais.git gnuradio-3.7.0 Device Motorola Xoom MZ601 -mfloat-abi=hard -mfpu=vfpv3-d16 -mthumb -march=armv7-a Thanks i…

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## [Gruel missing from gnuradio compilation and install](https://www.ruby-forum.com/t/gruel-missing-from-gnuradio-compilation-and-install/246077)

<div class="topic-metadata">

**Author:** [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\
**Replies:** 3\
**Last updated:** [August 31, 2013, 12:06am UTC](https://www.ruby-forum.com/t/gruel-missing-from-gnuradio-compilation-and-install/246077 "2013-08-31T00:06:12Z")

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Platform: Motorola Xoom MZ601 armhf. gnuradio-3.6.3 includes gruel. But compiling gr-osmosdr against 3.6.3 fails. gr-osmosdr compiles without errors against gnuradio-3.7.0, but this version of gnuradio does not inc…

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