lang/python37 fails to build on RPi2 running 12.1-RELEASE

[John F Carr]

> On Jan 25, 2020, at 13:35 , David P. Discher <dpd at dpdtech.com> wrote:
> 
>> On Jan 25, 2020, at 10:14 AM, William Bulley <web at umich.edu> wrote:
>> 
>> ===>   Registering installation for python37-3.7.6
>> pkg-static: Unable to access file /usr/ports/lang/python37/work/stage/usr/local/lib/python3.7/lib-dynload/_ctypes.so:No such file or directory
>> *** Error code 74
> 
> 
> 	> grep 74 /usr/include/errno.h
> 	#define	EPROGUNAVAIL	74		/* RPC prog. not avail */
> 
> Are someone of these directories over NFS ? I’ve had major issues since 12.x on AMD64 compiling world/kernel/ports with volumes over NFS - really strange errors - especially for the “work” space.  Distfiles and packages seem ok on NFS. 

For process exit codes, as opposed to system call return values, look in /usr/include/sysexits.h:

#define EX_IOERR	74	/* input/output error */

These codes are not mandatory but they are conventional.  See sysexits(3).