osmocom-sdr

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906 discussions

gr-osmosdr / no tagged versions since 2014
by Harald Welte 08 Jan '19

08 Jan '19

Hi! today I discovered that the gr-osmosdr package in debian unstable contains a whooping list of 96 patches. This is due to the fact that since November 2014 there hasn't been any tagged versions in the repository. I'd like to suggest to tag releases a bit more often. @horizon: What about jumping to 1.0.0 right away? Regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

5 5

RTL_FM on the fly updates
by Mark Russell 08 Jan '19

08 Jan '19

Good evening - I am trying to make modifications to rtl_fm so that I can change frequencies, gains, modulation types, and squelch values on the fly (and thus avoiding a restart). Its unclear to me what functions need to be called in order to apply changes to the sdr device so that I can do the above. The rtl_fm code isnt documented so I dont have much to go off of... GQRX doesnt run reliably on any RPi3's I've tried so I hoping to use a modified rtl_fm in its place. Any help would be appreciated. Thanks :)

2 3

[PATCH v2] Add api to get index by usb bus and port number
by Nicolas Sugino 07 Jan '19

07 Jan '19

This allows to get the device index based on the usb bus and port number Signed-off-by: Nicolas Sugino <nsugino(a)3way.com.ar> --- include/rtl-sdr.h | 12 ++++++++++++ src/librtlsdr.c | 41 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 53 insertions(+) diff --git a/include/rtl-sdr.h b/include/rtl-sdr.h index 3ed13ae..d1e3c1e 100644 --- a/include/rtl-sdr.h +++ b/include/rtl-sdr.h @@ -60,6 +60,18 @@ RTLSDR_API int rtlsdr_get_device_usb_strings(uint32_t index, */ RTLSDR_API int rtlsdr_get_index_by_serial(const char *serial); +/*! + * Get device index by USB bus and port number + * + * \param bus bus number where the device is connected + * \param port port number where the device is connected + * \return device index of first device where the name matched + * \return -1 on libusb initialization failure + * \return -2 if no devices were found at all + * \return -3 if devices were found, but none with matching bus and port + */ +RTLSDR_API int rtlsdr_get_index_by_usb_bus_port(uint8_t bus, uint8_t port); + RTLSDR_API int rtlsdr_open(rtlsdr_dev_t **dev, uint32_t index); RTLSDR_API int rtlsdr_close(rtlsdr_dev_t *dev); diff --git a/src/librtlsdr.c b/src/librtlsdr.c index 89ec903..12a196f 100644 --- a/src/librtlsdr.c +++ b/src/librtlsdr.c @@ -1436,6 +1436,47 @@ int rtlsdr_get_index_by_serial(const char *serial) return -3; } +int rtlsdr_get_index_by_usb_bus_port(uint8_t bus, uint8_t port) +{ + int r = -2, index = -3; + int i; + libusb_context *ctx; + libusb_device **list; + struct libusb_device_descriptor dd; + uint8_t reg, dev_bus, dev_port; + ssize_t cnt; + + r = libusb_init(&ctx); + if(r < 0){ + return -1; + } + + cnt = libusb_get_device_list(ctx, &list); + if (!cnt) { + libusb_exit(ctx); + return -2; + } + + for (i = 0; i < cnt; i++) { + libusb_get_device_descriptor(list[i], &dd); + + if (find_known_device(dd.idVendor, dd.idProduct)) { + index == -3 ? index = 0 : index++; + dev_bus = libusb_get_bus_number(list[i]); + dev_port = libusb_get_port_number(list[i]); + if(bus == dev_bus && port == dev_port) { + break; + } + } + } + + libusb_free_device_list(list, 1); + + libusb_exit(ctx); + + return index; +} + int rtlsdr_open(rtlsdr_dev_t **out_dev, uint32_t index) { int r; -- 2.13.6

1 0

[PATCH] Add api to get index by usb bus and port number
by Nicolas Sugino 03 Jan '19

03 Jan '19

This allows to get the device index based on the usb bus and port number Signed-off-by: Nicolas Sugino <nsugino(a)3way.com.ar> --- include/rtl-sdr.h | 12 ++++++++++++ src/librtlsdr.c | 41 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 53 insertions(+) diff --git a/include/rtl-sdr.h b/include/rtl-sdr.h index 3ed13ae..d1e3c1e 100644 --- a/include/rtl-sdr.h +++ b/include/rtl-sdr.h @@ -60,6 +60,18 @@ RTLSDR_API int rtlsdr_get_device_usb_strings(uint32_t index, */ RTLSDR_API int rtlsdr_get_index_by_serial(const char *serial); +/*! + * Get device index by USB bus and port number + * + * \param bus bus number where the device is connected + * \param port port number where the device is connected + * \return device index of first device where the name matched + * \return -1 on libusb initialization failure + * \return -2 if no devices were found at all + * \return -3 if devices were found, but none with matching bus and port + */ +RTLSDR_API int rtlsdr_get_index_by_usb_bus_port(uint8_t bus, uint8_t port); + RTLSDR_API int rtlsdr_open(rtlsdr_dev_t **dev, uint32_t index); RTLSDR_API int rtlsdr_close(rtlsdr_dev_t *dev); diff --git a/src/librtlsdr.c b/src/librtlsdr.c index 89ec903..eca093a 100644 --- a/src/librtlsdr.c +++ b/src/librtlsdr.c @@ -1436,6 +1436,47 @@ int rtlsdr_get_index_by_serial(const char *serial) return -3; } +int rtlsdr_get_index_by_usb_bus_port(uint8_t bus, uint8_t port) +{ + int r = -2, index = -3; + int i; + libusb_context *ctx; + libusb_device **list; + struct libusb_device_descriptor dd; + uint8_t reg, dev_bus, dev_port; + ssize_t cnt; + + r = libusb_init(&ctx); + if(r < 0){ + return -1; + } + + cnt = libusb_get_device_list(ctx, &list); + if (!cnt) { + libusb_exit(ctx); + return -2; + } + + for (i = 0; i < cnt; i++) { + dev_bus = libusb_get_bus_number(list[i]); + dev_port = libusb_get_port_number(list[i]); + + libusb_get_device_descriptor(list[i], &dd); + + if (find_known_device(dd.idVendor, dd.idProduct) && + bus == dev_bus && port == dev_port) { + index = i; + break; + } + } + + libusb_free_device_list(list, 1); + + libusb_exit(ctx); + + return index; +} + int rtlsdr_open(rtlsdr_dev_t **out_dev, uint32_t index) { int r; -- 2.13.6

1 0

OsmoDevCon 2019 registration
by Harald Welte 31 Dec '18

31 Dec '18

Dear fellow Osmocom developers, I'm a bit surprised to notice that not more people have signed up for OsmoDevCon 2019. I guess it was mostly an oversight when the date was originally announced, and not a lack of interest? ;) All details about the event are available at the related wiki page at: https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCon2019 Please enter your name at https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCon2019#Requested in case you would like to attend. Registering early allows proper planning. Thanks! Looking forward to meeting old and new Osmocom developers in April 2019. Regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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fl2k on Odroid C1 & Odroid-XU
by Ioannis Makris 29 Dec '18

29 Dec '18

Hello and thanks for the amazing piece of software. Despite having managed to do much stuff with it under x64 linux, I failed miserably to make it work under ARM architecture. To be more specific, I tried the Odroid-XU usb3.0 capable board and the Odroid-C1 Usb2.0 board to no avail. Odroid XU kernel: 3.4.y Odroid-C1 kernel: 3.10.107 I used all reasonable ranges of sampling rates and here are the results: Program seems to run normally. No error codes and.. no buffer underruns at all. In my i3 laptop I get some buffer underruns but to arm I have never spotted such a message no matter what the sampling rate is. When the sampling rate is a fraction of what fl2k_test reports as maximum, I see the sampling rate spike on my spectrum analyzer (Advantest TR4132). But when I opt for fl2k_fm, I see no response whatsoever other than the enabling of the DAC visible as an increase of a few dB's of noise and a hint (3dB C/N) at the sampling frequency. I tried the binary repositories of libusb for my distribution, and I even compiled locally libusb from source - nothing changed. What could be making such a mess? I have spent over 3 days on efforts to no avail. I just want to explore upconversion possibilities but I need to encapsulate both the host and the FL2000 into a shield in order to get meaningful experimental results. Please help if you can Thanks Ioannis (John) Makris SV9OFO

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Re: [Discuss-gnuradio] [GREP] Remove log4cpp
by Müller, Marcus (IEH) 28 Dec '18

28 Dec '18

Hi Martin, hi Community, first of all: thanks for all the fish err GREPs! We need to kick off this discussion. So, this PR is very dear to my heart, because I consider log4cpp to be an especially problematic dependency. And I consider our logging to be subpar considering the size of the code base, user base and the fact that people are using GNU Radio in infrastructure for rather expensive things. So, I took the opportunity (being at 35c3, just to pose around a little bit) and talked to a couple Osmocom folks. Osmocom people, please correct me if I make any mistakes. What they have in osmocore is essentiall logging in both quantized severity and in categories, and logging routing. For them, that's very important, as they use that to supply resilient infrastructure. I hope I'm representing the idea kinda correctly here: They might want to log system events ("SUPERVISOR: INFO system load surpassing 75%") somewhere, and development info ("gr-6G: TRACE found a preamble") on-screen, and critical messages ("gr-digital: FATAL run out of developer coffee") everywhere. I want that too. I want this to be easily integratable into software that uses GNU Radio as library. And if I'm already making wishes here, I want loggers that interface to modern logging systems, be it journald, graylog or SNMP. Something. So, I think that's pretty similar to what UHD does (correct me please, Martin). I think that UHD is a bit more flexible on the logging "categories" than I'd like to be, but that really just means we need to set a convention. So, I'm stuck wondering whether we adopt the self-implemented system that UHD uses, or the self-implemented system that osmocore uses, or implement our own. Familiarity suggests UHD, maturity osmocore. Best regards, Marcus On Thu, 2018-12-27 at 13:49 -0800, Martin Braun wrote: > This GREP was recently submitted here: > > https://github.com/gnuradio/greps/blob/master/grep-0013-remove-log4cpp.md > > We may or may not go through with this. However, we like to kill > dependencies (hey there node.js developers :D ), and log4cpp has some > issues of its own that we're currently inheriting. > > Personally, I use GR logging only for debugging purposes. But I know > that others use it for other reasons, and this thread is a good place > to discuss: > - Alternatives to log4cpp (I've listed Boost.Log and hand-spun as > options) > - What people need it for > - Is the current logging in a good shape as it is > - Who wants to own this task? > - etc. > > Cheers, > Martin > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio(a)gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

1 0

Android SDR server
by Семашко Максим 23 Dec '18

23 Dec '18

Hello! I made SDR server on my android TV BOX. WOrks great! (by ethernet!). I am connecting to RTL SDR v3 dongle via network from my windows pc running sdr sharp! Could you say, how can i automate server starting? Because every time i disconnect sdr sharp (on my pc), i should turn connect display to android box and click START STREAM button. It would be great if it possible to make sdr server independent with no need to start ir every time. Youre server and driver are great! -- Sincerely, Max Semashko

1 0

RFSpace SDR-IQ Question on Gain settings GNU Radio osmocom Source
by Greg 22 Dec '18

22 Dec '18

Hello, I hope this is the correct list to ask this question. I have an SDR-IQ connected via USB to Ubuntu 18.04 and version 3.7.13.4 GNU Radio. I am getting data from the source at correct center frequency and sampling rate, however ... I am having trouble find 3 of 4 gain controls. I believe these to be the settings affecting the device gain: 1. RF Gain: -20, -10, 0, 10 dB. These I can successfully change via the RF Gain setting in the Osmocom source. It's good! 2. IF Gain: 24, 18, 12, 6, and 0 dB. This is a "digital gain" and changes a coefficient of the "6620 Digital Downconverter", which apparently is hardware in the SDR-IQ which does filtering and decimation. 3. Preamp Gain, via a "GN Code" of range 0-127, which goes from Off, and then a range of -8.08 to 34 dB. 4. A step attenuator with 0 and 10 dB settings. I got the above by examining the "SpectraVue" Windows application for the SDR-IQ provided by RFSpace. #1 is no problem, it works. What about 2, 3, and 4? So is there any hope of controlling these settings with the osmocom source? Regards, Greg R

1 0

ld error when building latest git version. undefined reference to log4cpp::Appender ...
by Doron Behar 13 Dec '18

13 Dec '18

So I wanted to compile gr-osmosdr from source. I created a build directory and I ran `cmake ..` and then `make`. These are the errors I got: ``` [ 57%] Linking CXX shared library libgnuradio-osmosdr-0.1.5git.so /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/source_impl.cc.o: in function `_GLOBAL__sub_I_source_impl.cc': source_impl.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: source_impl.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/sink_impl.cc.o: in function `_GLOBAL__sub_I_sink_impl.cc': sink_impl.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: sink_impl.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/device.cc.o: in function `_GLOBAL__sub_I_device.cc': device.cc:(.text.startup+0x60): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: device.cc:(.text.startup+0x67): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/osmosdr/osmosdr_src_c.cc.o: in function `_GLOBAL__sub_I_osmosdr_src_c.cc': osmosdr_src_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: osmosdr_src_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/file/file_source_c.cc.o: in function `_GLOBAL__sub_I_file_source_c.cc': file_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: file_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/file/file_sink_c.cc.o: in function `_GLOBAL__sub_I_file_sink_c.cc': file_sink_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: file_sink_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/rtl/rtl_source_c.cc.o: in function `_GLOBAL__sub_I_rtl_source_c.cc': rtl_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: rtl_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/rtl_tcp/rtl_tcp_source_c.cc.o: in function `_GLOBAL__sub_I_rtl_tcp_source_c.cc': rtl_tcp_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: rtl_tcp_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/uhd/uhd_sink_c.cc.o: in function `_GLOBAL__sub_I_uhd_sink_c.cc': uhd_sink_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: uhd_sink_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/uhd/uhd_source_c.cc.o: in function `_GLOBAL__sub_I_uhd_source_c.cc': uhd_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: uhd_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/miri/miri_source_c.cc.o: in function `_GLOBAL__sub_I_miri_source_c.cc': miri_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: miri_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/hackrf/hackrf_source_c.cc.o: in function `_GLOBAL__sub_I_hackrf_source_c.cc': hackrf_source_c.cc:(.text.startup+0x58): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: hackrf_source_c.cc:(.text.startup+0x5f): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/hackrf/hackrf_sink_c.cc.o: in function `_GLOBAL__sub_I_hackrf_sink_c.cc': hackrf_sink_c.cc:(.text.startup+0x58): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: hackrf_sink_c.cc:(.text.startup+0x5f): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/bladerf/bladerf_source_c.cc.o: in function `_GLOBAL__sub_I_bladerf_source_c.cc': bladerf_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: bladerf_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/bladerf/bladerf_sink_c.cc.o: in function `_GLOBAL__sub_I_bladerf_sink_c.cc': bladerf_sink_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: bladerf_sink_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/rfspace/rfspace_source_c.cc.o: in function `_GLOBAL__sub_I_rfspace_source_c.cc': rfspace_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: rfspace_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/airspy/airspy_source_c.cc.o: in function `_GLOBAL__sub_I_airspy_source_c.cc': airspy_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: airspy_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/soapy/soapy_source_c.cc.o: in function `_GLOBAL__sub_I_soapy_source_c.cc': soapy_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: soapy_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/soapy/soapy_sink_c.cc.o: in function `_GLOBAL__sub_I_soapy_sink_c.cc': soapy_sink_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: soapy_sink_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/redpitaya/redpitaya_source_c.cc.o: in function `_GLOBAL__sub_I_redpitaya_source_c.cc': redpitaya_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: redpitaya_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/redpitaya/redpitaya_sink_c.cc.o: in function `_GLOBAL__sub_I_redpitaya_sink_c.cc': redpitaya_sink_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: redpitaya_sink_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/freesrp/freesrp_source_c.cc.o: in function `_GLOBAL__sub_I_freesrp_source_c.cc': freesrp_source_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: freesrp_source_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' /usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/freesrp/freesrp_sink_c.cc.o: in function `_GLOBAL__sub_I_freesrp_sink_c.cc': freesrp_sink_c.cc:(.text.startup+0x54): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorageInitializer()' /usr/bin/ld: freesrp_sink_c.cc:(.text.startup+0x6b): undefined reference to `log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorageInitializer()' collect2: error: ld returned 1 exit status make[2]: *** [lib/CMakeFiles/gnuradio-osmosdr.dir/build.make:555: lib/libgnuradio-osmosdr-0.1.5git.so.0.0.0] Error 1 make[1]: *** [CMakeFiles/Makefile2:141: lib/CMakeFiles/gnuradio-osmosdr.dir/all] Error 2 make: *** [Makefile:141: all] Error 2 ``` As you can see, all error messages refer to the same reference to a log4cpp appender function. I have log4cpp version 1.1.3 installed by my package manager on Arch Linux. It is installed in /usr/lib. It seems like a missing library in CMakeLists.txt . Am I correct? Thanks for creating this software.

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