[Buildroot] buildroot compilation error "extra tokens at end of #ident directive"

[Buildroot] buildroot compilation error "extra tokens at end of #ident directive"

[Drew Cohan]

Hi,

I'm experiencing a compilation error "extra tokens at end of #ident
directive" while building buildroot.  Can someone please help?

Here are the steps I've taken:

1.  install a fully functional development environment using CentOS
v4.3onto an x86 box (this environment had previously compiled
buildroot without
issues on or around 6/27/06 and not touched since then, so I know it to be a
"good" environment).
2. rm -rf buildroot (to make sure everything is clean, I understand there
are better ways)
3. wget -q
http://buildroot.uclibc.org/downloads/snapshots/buildroot-snapshot.tar.bz2
4. tar xvfj buildroot-snapshot.tar.bz2
5. cd buildroot
6. make menuconfig
7. leave everything as "shipped", exit, save config
8. make
9. when the new config questions come up, choose "8" at the first prompt
(pentium 3), keep the default answers for the remaining nine questions or so
by hitting enter.

forty-five minutes later, compilation error:

CC modutils/insmod.o
/home/pkuser/buildroot/build_i686/busybox/modutils/insmod.c:352:10: extra
tokens at end of #ident directive
/home/pkuser/buildroot/build_i686/busybox/modutils/insmod.c:515:10: extra
tokens at end of #ident directive
make[2]: *** [/home/pkuser/buildroot/build_i686/busybox/modutils/insmod.o]
Error 1
make[1]: *** [_all] Error 2
make[1]: Leaving directory `/home/pkuser/buildroot/build_i686/busybox'
make: *** [/home/pkuser/buildroot/build_i686/busybox/busybox] Error 2

The two offending lines in the source code are identical:

#ident "$Id: insmod.c,v 1.126 2004/12/26 09:13:32 vapier Exp $"
#ident "$Id: insmod.c,v 1.126 2004/12/26 09:13:32 vapier Exp $"

Here are the results of the host environment checks buildroot does:

Checking build system dependencies:
sed works:                          Ok
GNU make version '3.80':            Ok
gcc version '3.4.5':                Ok
which installed:                    Ok
bison installed:                    Ok
flex installed:                     Ok
gettext installed:                  Ok
Build system dependencies:          Ok

I have a log of the entire build process if that would help.

Thanks,

Drew
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[Buildroot] buildroot compilation error "extra tokens at end of #ident directive"

[Rob Landley]

On Tuesday 25 July 2006 2:06 pm, Drew Cohan wrote:
> CC modutils/insmod.o
> /home/pkuser/buildroot/build_i686/busybox/modutils/insmod.c:352:10: extra
> tokens at end of #ident directive
> /home/pkuser/buildroot/build_i686/busybox/modutils/insmod.c:515:10: extra
> tokens at end of #ident directive

Huh, that would be my problem.  (Rummages.)  svn 15743 should fix this, which 
should be in tonight's snapshot.

> The two offending lines in the source code are identical:
> 
> #ident "$Id: insmod.c,v 1.126 2004/12/26 09:13:32 vapier Exp $"
> #ident "$Id: insmod.c,v 1.126 2004/12/26 09:13:32 vapier Exp $"

They have been yanked.

I take it this is a gcc 4.1 issue?  (I've tested rather a lot with gcc 4.0, 
but only got a gcc 4.1 environment set up while I was at OLS, and have been 
too busy to play with it since I got back...)  Alas, -Werror is a bit harsh 
but it does catch the warnings early...

Let me know if you hit anything else in busybox.

Rob
-- 
Never bet against the cheap plastic solution.