Issue after upgrade from Fedora 27 to Fedora 28 with build?

[Baruch Siach]

Hi Michael,

On Tue, Jun 19, 2018 at 08:45:55PM +1000, Michael D. Setzer II wrote:
> Upgraded a Fedora 27 VirtualBox system to Fedora 28, and then went to 
> rebuild a working busybox setup and get an error during the build with 
> mount.c.
> 
> Is looking for rpc/rpc.h (and two other header files). With the fedora 27, the 
> directory /usr/include/rpc/ has a number of header files, but with the fedora 
> 28, it only contains netdb.h?? 
> 
> With 27, it shows glibc-headers as the file that provides it. The fedora 28 has 
> the package installed, and even tried reinstalling it, but still just the one file.
> 
> With the Fedora 28, dnf whatprovides search for /usr/include/rpc/rpc.h results 
> in nothing found.
> 
> Not sure if has been moved, or somehow dropped from the system.
> 
> Tried copying the missing files, from a fedora 27 to the directory, and it gets 
> thru the compile of mount.c, but then has error with the linking.
> 
> Not sure if this is a busybox or fedora issue.

glibc deprecated its internal rpc implementation. Fedora 28 now builds glibc 
without rpc support.

You might find the advice in util-linux/mount.c useful:

#  warning "You probably need to build uClibc with UCLIBC_HAS_RPC for NFS support"
   /* not #error, since user may be using e.g. libtirpc instead.
    * This might work:
    * CONFIG_EXTRA_CFLAGS="-I/usr/include/tirpc"
    * CONFIG_EXTRA_LDLIBS="tirpc"
    */

Another option is to use an external mount.nfs utility.

baruch

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