Re: [Ltib] Make rpmbuild invoke bash instead of sh?

[Stuart Hughes]

Hi Svein,

Welcome to the list.  I agree with most of your observations.  A while 
back I went through an exercise of making ltib and the rpm spec files 
safe in dash as well as dash so LTIB should be fine on Ubuntu even if it 
uses dash.  If there are any places left in qtopia.spec that are not 
dash safe, maybe you could indicate them or send a patch that fixes them.

So far as changing /bin/sh to point to bash, I don't think this would 
break your install of Ubuntu as bash's command set is a superset of dash 
 AFAIK.  I think the idea of dash is that it maybe boots a bit faster?

BTW: take a look at the public project, maybe its already fixed (the 
Freescale BSP tend to lag).

        http://cvs.savannah.gnu.org/viewvc/ltib/?root=ltib

Regards, Stuart

Svein Seldal wrote:
> Hello guys!
>
> I'm new to this list (and to LTIB) and I have to admit that I'm 
> struggling a bit. I have a Freescale iMX35PDK and am running Debian 9.04 
> on host.
>
> This mail might ruin my first impression, yet I think I can handle it :D
>
> My compilation has stopped at building of qtopia because of a script 
> error. Now, I know why it fails:
>
> The qtopia spec files uses bash script syntaxes, while rpmbuild seem to 
> invoke the script as #/bin/sh. On a Debian and Ubuntu based system, 
> /bin/sh is not bash, it's dash.
>
> http://en.wikipedia.org/wiki/Debian_Almquist_shell
>
> It was proposed earlier on this list to change the /bin/sh symlink to 
> bash. This is NOT a recommended solution, because it may break 
> Debian/Ubuntu bootup.
>
> How can I then configure rpmbuild to invoke the script as a proper bash 
> script (which is should)? There's nothing in the .spec file specifying 
> which script engine to use. According to google, it's seems the bond to 
> /bin/sh might be hardcoded. Anybody knows?
>
> IMHO we can't and shouldn't assume that /bin/sh is bash. (Hence if my 
> above statements are true, rpmbuild is broken.)  Coming from a non-rpm 
> based linux, I'd propose fixing this for our little world by either not 
> rely on bash features, or to invoke the bash script separately.
>
>
> Best regards,
> Svein Seldal
>
>
>
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