# Compiling gnuradio from source on GENTOO Linux failed **URL:** \ **Category:** GNU Radio\ **Created:** [April 12, 2015, 3:53pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-from-source-on-gentoo-linux-failed/241534 "2015-04-12T15:53:17Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Detlef\_R](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/58f4c7/32.png) [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Post date:** [April 12, 2015, 3:53pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-from-source-on-gentoo-linux-failed/241534/1 "2015-04-12T15:53:17Z")
Hi, I am trying to build gnuradio on a recent Gentoo system from source. I tried to use emerge/portage for that, but it fails in a configuration step. The system: Recent Gentoo Linux gcc version 4.8.4 (Gentoo 4.8.4 p1.4, pie-0.6.1) glibc-2.20-r2 CPU:AMD Phenom™ II X6 1090T Processor The device I want to use as receiver is listed via ‘lsusb -v’ like this: Bus 002 Device 004: ID 0ccd:00d3 TerraTec Electronic GmbH Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0ccd TerraTec Electronic GmbH idProduct 0x00d3 bcdDevice 1.00 iManufacturer 1 Realtek iProduct 2 RTL2838UHIDIR iSerial 3 00000001 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 34 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 4 USB2.0-Bulk&Iso bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 5 Bulk-In, Interface Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 5 Bulk-In, Interface Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 2 Device Status: 0x0000 (Bus Powered) I downloaded gnuradio-3.7.5 and followed the instructions on the wiki. The build-process ended without error as far as I can tell (buildlog attached). Running ‘make test’ sometimes reports 2 and sometimes 3 error on the identical build (testlog attached) If I install gnuradio nontheless and starting gnuradio-companion it shows a dialog displaying this: * * * Cannot import gnuradio. Is the python path environment variable set correctly? All OS: PYTHONPATH ## Is the library path environment variable set correctly? Linux: LD\_LIBRARY\_PATH Windows: PATH MacOSX: DYLD\_LIBRARY\_PATH and after pressing CLOSE it ends. I set PYTHONPATH to /usr/lib64/python2.7 and added /usr/local/lib64 to ld.so.config but that does not change anything. Even without setting PYTHONPATH explicitely no other python application shows problems… I used ‘strace’ to trace the calls of gnuradio-companion and subprocesses but found nothing which gives any further informations to me. I googled for the failed tests and build errors but I either find nothing appropiate (exact searchh phrase) or much to much (loose search phrase). The list of open build problems seems also not to mention my case. Since I am new to gnuradio and I am no native English speaker I may not being /that/ successful in searching with the right phrases… How can I proceed from here to fix the above problems? Thank you very much in advance for any help! Best regards, Meino ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [April 15, 2015, 1:58pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-from-source-on-gentoo-linux-failed/241534/2 "2015-04-15T13:58:53Z")
Dear Meino On 12. 04. 2015 15:49, [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > ``` > Linux: LD_LIBRARY_PATH > Windows: PATH > MacOSX: DYLD_LIBRARY_PATH > > ``` > > * * * > > and after pressing CLOSE it ends. > > I set PYTHONPATH to /usr/lib64/python2.7 and > added /usr/local/lib64 to ld.so.config but that > does not change anything. Even without setting PYTHONPATH > explicitely no other python application shows problems… Like gnuradio-companion’s dialog says, this looks like Python can’t find your GR installation. Try running “python” and then type “import gnuradio”. You shouldn’t get any errors if everything has been installed correctly: $ python Python 2.7.8 (default, Oct 18 2014, 12:50:18) [GCC 4.9.1] on linux2 Type “help”, “copyright”, “credits” or “license” for more information. > > > import gnuradio If this fails, check where GR’s Python modules got installed. Python modules should be in a directory named “gnuradio” that has contents similar to this: $ ls gnuradio **init**.py **init**.pyc **init**.pyo analog atsc audio blocks … Make sure that the directory above the “gnuradio” directory is in the Python’s include path (paths listed in PYTHONPATH and the default include paths for your system). For example, if you find “/usr/local/lib/python2.7/dist-packages/gnuradio”, try putting “/usr/local/lib/python2.7/dist-packages” in PYTHONPATH. Best regards Tomaž ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [May 5, 2015, 6:28am UTC](https://www.ruby-forum.com/t/compiling-gnuradio-from-source-on-gentoo-linux-failed/241534/3 "2015-05-05T06:28:37Z")
I know I’m super late to the party on this thread, but gentoo does have working ebuilds which are up to date. You could just install from the package manager. -Zero\_Chaos