[Discuss-gnuradio] Building on ODroid C2 running CentOS 7 report.

[Lamar Owen]

I have been successful in getting CentOS 7 onto an ODroid C2.  This is 
the AArch64 version; armv8, 64-bit.

I did run into a bug in build-gnuradio, however.  The logic that 
determines the release number for CentOS/RHEL/SL 6 is flawed.  The logic 
looks for the pattern '*elease*6*' in /etc/redhat-release; however, on 
the CentOS 7 AArch64 version, here's what is in that file:
address@hidden ~]$ cat /etc/redhat-release
CentOS Linux release 7.2.1603 (AltArch)
address@hidden ~]$

This incorrectly drives the script to try the prereqs for 
CentOS/RHEL//SL 6 instead of 7.  Changing the test to '*elease*6.*' 
fixes it.

I don't quite have a full GUI build of GNURadio yet since I've been 
hand-building the EPEL dependencies one by one, and now I have another 
list of deps to build..... (There is no EPEL for CentOS7 on any arm, 32 
or 64-bit, yet).  The build, not counting GRC and a few other GUI 
modules, takes over 6 and a half hours on the C2 and eats swap for lunch 
(a couple of the wrapper files need >2GB of virt during the build, and 
the C2 only has 2GB of RAM).

I'll give a fuller report once I have a successful GUI build, and/or 
when EPEL is available for AArch64......