Closed issue by herveq1 on void-packages repository

https://github.com/void-linux/void-packages/issues/8569

Description:
### System

* xuname:  
Void 4.19.20_1 x86_64-musl GenuineIntel notuptodate hold rrFFFFFF
  *output of ``xuname`` (part of xtools)*
* package:  
  *affected package(s) including the version*
xq nfs-utils
[*] nfs-utils-1.3.4_6              Network File System utilities

### Expected behavior
do what is is intended to do...

### Actual behavior
rpc.mountd musl version segmentation fault on server when mounting the directory on client.

Works ok on Void glibc machine!

/var/log/messages
2019-02-12T09:02:33.754663+01:00 olix rpc.mountd[3106]: Version 1.3.3 starting
2019-02-12T09:02:33.809015+01:00 olix kernel: [ 4534.671414] rpc.mountd[3106]: segfault at 28 ip 00007fc73d9e0534 sp 00007ffeea9f2bf0 error 4 in libc.so[7fc73d9b2000+62000]
2019-02-12T09:02:33.809046+01:00 olix kernel: [ 4534.671423] Code: 84 00 00 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 41 54 55 53 <48> 8b 47 28 48 85 c0 74 63 b9 01 00 00 00 eb 07 0f 1f 40 00 48 89
2019-02-12T09:02:33.835026+01:00 olix kernel: [ 4534.697132] nfsd: last server has exited, flushing export cache


### Steps to reproduce the behavior
start nfs on server
try to mount an exported directory on the client