'Re: Issue after upgrade from Fedora 27 to Fedora 28 with build?'

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List:       busybox
Subject:    Re: Issue after upgrade from Fedora 27 to Fedora 28 with build?
From:       "Michael D. Setzer II" <mikes () guam ! net>
Date:       2018-06-21 18:20:45
Message-ID: 5B2BEC7D.17268.136175 () mikes ! guam ! net
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The error is that the file rpc/rpc.h does not exist, so the compile fails??
The mount.c has lines that include 3 header files from the rpc directory that 
do exist on Fedora 27 and earlier systems, but on a machine at was just 
upgraded to Fedora 28, the directory only has netdb.h and none of the other 
header files.

The error is just that it tries to include the 3 header files that are no longer on 
the system, so it fails to compile the mount.c program, and the process 
aborts at that point. 

Added the lines mentioned to the .config file to I guess get it to use the tirpc 
files, but still got the error when it tried to compile the mount.c file.

Full directory path is /usr/include/rpc for the directory. So, it is that it is looking 
for those files to include, and since they are not present it fails.

Understand that fedora 28 seems to have dropped the support of the rpc 
atleast in that directory, and is no using the tirpc. Note. The Fedora's 
mount.nfs file does require the tirpc library.

Ended up just removing all mount options from busybox, and going with the 
larger ones from the Fedora distro. Currently have about 180 packages in the 
busybox build that work great, but have other programs outside it.

Again, Great program and it is probable me not understanding how to get 
around the issue. Been using it since I took over maintaining the g4l project 
in 2004 and it has always just continue to work until this. Even now, it works 
for everything else.

On 21 Jun 2018 at 18:40, Denys Vlasenko wrote:

From:           	Denys Vlasenko <vda.linux@googlemail.com>
Date sent:      	Thu, 21 Jun 2018 18:40:00 +0200
Subject:        	Re: Issue after upgrade from Fedora 27 to Fedora 28 with 
build?
To:             	"Michael D. Setzer II" <mikes@guam.net>
Copies to:      	busybox <busybox@busybox.net>

> On Tue, Jun 19, 2018 at 6:07 PM, Michael D. Setzer II <mikes@guam.net> wrote:
> > Tried adding the lines into the busybox .config file, but then trying to make it
> > still fails in the mount.c program when it still tries to include the three header
> > files that no longer exist on the fedora 28 in the /usr/include/rpc directory.
> 
> If you get am error, please show it.
> 
> > Ended up just removing the mount and umount options from busybox, and it
> > then compiles just fine. Reduces busybox file by about 15K. Unfortunately
> > adding the mount, umount and required libraries is about an additional 500K.
> 
> Please see this:
> 
> //config:config FEATURE_MOUNT_NFS
> //config:       bool "Support mounting NFS file systems on Linux < 2.6.23"
> //config:       default n
> //config:       depends on MOUNT
> //config:       select FEATURE_SYSLOG
> //config:       help
> //config:       Enable mounting of NFS file systems on Linux kernels prior
> //config:       to version 2.6.23. Note that in this case mounting of NFS
> //config:       over IPv6 will not be possible.
> //config:
> //config:       Note that this option links in RPC support from libc,
> //config:       which is rather large (~10 kbytes on uclibc).
> 
> You can simply unselect this option.
> 
> Today, NFS mounting works on non-ancient kernels *without RPC*.
> It used to use a binary structure with mount options
> (struct nfs_mount_data), but now it also accepts string
> as mount options, like all other filesystems always did.
> 
> See:
> 
> /* Linux 2.6.23+ supports nfs mounts with options passed as a string.
>  * For older kernels, you must build busybox with ENABLE_FEATURE_MOUNT_NFS.
>  * (However, note that then you lose any chances that NFS over IPv6 would work).
>  */
> static int nfsmount(struct mntent *mp, unsigned long vfsflags, char *filteropts)
> {
>         len_and_sockaddr *lsa;
>         char *opts;
>         char *end;
>         char *dotted;
>         int ret;
> 
> 
> This function resolves hostname to IP(v6) and passes it in "addr=IP" option.
> _______________________________________________
> busybox mailing list
> busybox@busybox.net
> http://lists.busybox.net/mailman/listinfo/busybox

+------------------------------------------------------------+
 Michael D. Setzer II - Computer Science Instructor (Retired)     
 mailto:mikes@guam.net                            
 mailto:msetzerii@gmail.com
 Guam - Where America's Day Begins                        
 G4L Disk Imaging Project maintainer 
 http://sourceforge.net/projects/g4l/
+------------------------------------------------------------+

http://setiathome.berkeley.edu (Original)
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Processing time:  32 years, 290 days, 12 hours, 58 minutes
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