* gnu-libc and egcs problems on linux
@ 1997-12-03 5:46 Mike Neuhauser
1997-12-03 10:32 ` Ulrich Drepper
0 siblings, 1 reply; 6+ messages in thread
From: Mike Neuhauser @ 1997-12-03 5:46 UTC (permalink / raw)
To: libc-hacker; +Cc: egcs
Hi!
I've came across a problem with gnu-libc (snapshot 971201 from
ftp.kernel.org) and egcs-971201 under linux (my goal is to build
a cross compiler for a linux system that will use gnu-libc as its
libc). During the build of the cross compiler the header files of
gnu-libc are needed to extract certain system specific definitions
(to generate egcs/build/<target>/libio/_G_config.h). The script doing
this (egcs-971201/libio/gen-params) needs the whole definition of
certain data-types to be on a *single* line . This is not the case for
__sigset_t defined in libc-971201/sysdeps/unix/sysv/linux/bits/sigset.h
which causes the cross-compiler build to fail. The following simple
patch fixes the problem. (It would be much more complicated to fix
egcs-971201/libio/gen-params.)
===================Patch Begin
--- libc-971201/sysdeps/unix/sysv/linux/bits/sigset.h-old Wed Dec 3 10:52:13 1997
+++ libc-971201/sysdeps/unix/sysv/linux/bits/sigset.h Wed Dec 3 10:52:31 1997
@@ -25,10 +25,7 @@
/* A `sigset_t' has a bit for each signal. */
#define _SIGSET_NWORDS (1024 / (8 * sizeof (unsigned long int)))
-typedef struct
- {
- unsigned long int __val[_SIGSET_NWORDS];
- } __sigset_t;
+typedef struct { unsigned long int __val[_SIGSET_NWORDS]; } __sigset_t;
#endif
===================Patch End
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: gnu-libc and egcs problems on linux
1997-12-03 5:46 gnu-libc and egcs problems on linux Mike Neuhauser
@ 1997-12-03 10:32 ` Ulrich Drepper
1997-12-03 10:32 ` Mike Neuhauser
0 siblings, 1 reply; 6+ messages in thread
From: Ulrich Drepper @ 1997-12-03 10:32 UTC (permalink / raw)
To: Mike Neuhauser; +Cc: libc-hacker, egcs
Mike Neuhauser <mike@gams.co.at> writes:
> (It would be much more complicated to fix
> egcs-971201/libio/gen-params.)
gen-params never has to run on Linux. So why is this a problem? I
don't want to uglify the headers because of some unrelated scripts.
-- Uli
---------------. drepper at gnu.org ,-. Rubensstrasse 5
Ulrich Drepper \ ,-------------------' \ 76149 Karlsruhe/Germany
Cygnus Solutions `--' drepper at cygnus.com `------------------------
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: gnu-libc and egcs problems on linux
1997-12-03 10:32 ` Ulrich Drepper
@ 1997-12-03 10:32 ` Mike Neuhauser
1997-12-03 10:32 ` Ulrich Drepper
0 siblings, 1 reply; 6+ messages in thread
From: Mike Neuhauser @ 1997-12-03 10:32 UTC (permalink / raw)
To: Ulrich Drepper; +Cc: libc-hacker, egcs
In message < x7wwhm30sy.fsf@myware.rz.uni-karlsruhe.de >, Ulrich Drepper writes:
> Mike Neuhauser <mike@gams.co.at> writes:
>
> > (It would be much more complicated to fix
> > egcs-971201/libio/gen-params.)
>
> gen-params never has to run on Linux. So why is this a problem? I
> don't want to uglify the headers because of some unrelated scripts.
I'm absolutly sure that on my system it does run and it *has* to
(as far as I understand it): my host/build system uses the old
linux libc (libc-5) and the target system will use gnulibc2. So
the _G_config.h from the host system is out-dated and _G_config.h
has to be generated from the gnulibc2 header files (configure
--with-headers=gnulibc2-headers-directory).
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: gnu-libc and egcs problems on linux
1997-12-03 10:32 ` Mike Neuhauser
@ 1997-12-03 10:32 ` Ulrich Drepper
1997-12-03 10:32 ` Mike Neuhauser
0 siblings, 1 reply; 6+ messages in thread
From: Ulrich Drepper @ 1997-12-03 10:32 UTC (permalink / raw)
To: Mike Neuhauser; +Cc: libc-hacker, egcs
Mike Neuhauser <mike@gams.co.at> writes:
> So the _G_config.h from the host system is out-dated and _G_config.h
> has to be generated from the gnulibc2 header files (configure
> --with-headers=gnulibc2-headers-directory).
It is correct that the system version is outdated but never
_G_config.h must be generated for use with glibc. This cannot work.
-- Uli
---------------. drepper at gnu.org ,-. Rubensstrasse 5
Ulrich Drepper \ ,-------------------' \ 76149 Karlsruhe/Germany
Cygnus Solutions `--' drepper at cygnus.com `------------------------
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: gnu-libc and egcs problems on linux
1997-12-03 10:32 ` Ulrich Drepper
@ 1997-12-03 10:32 ` Mike Neuhauser
1997-12-03 12:54 ` Ulrich Drepper
0 siblings, 1 reply; 6+ messages in thread
From: Mike Neuhauser @ 1997-12-03 10:32 UTC (permalink / raw)
To: Ulrich Drepper; +Cc: libc-hacker, egcs
In message < x7ra7u2z94.fsf@myware.rz.uni-karlsruhe.de >, Ulrich Drepper writes:
> Mike Neuhauser <mike@gams.co.at> writes:
>
> > So the _G_config.h from the host system is out-dated and _G_config.h
> > has to be generated from the gnulibc2 header files (configure
> > --with-headers=gnulibc2-headers-directory).
>
> It is correct that the system version is outdated but never
> _G_config.h must be generated for use with glibc. This cannot work.
Sorry, I didn't make myself clear enough: _G_config.h is needed during
the build of *egcs* when it is generated from the gnulibc2 headers. I
think this is fairly important as gnulibc2 is the new standard c-library
for linux.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: gnu-libc and egcs problems on linux
1997-12-03 10:32 ` Mike Neuhauser
@ 1997-12-03 12:54 ` Ulrich Drepper
0 siblings, 0 replies; 6+ messages in thread
From: Ulrich Drepper @ 1997-12-03 12:54 UTC (permalink / raw)
To: Mike Neuhauser; +Cc: libc-hacker, egcs
Mike Neuhauser <mike@gams.co.at> writes:
> Sorry, I didn't make myself clear enough: _G_config.h is needed during
> the build of *egcs* when it is generated from the gnulibc2 headers.
I know. It still cannot work. And it will become even more critical
in future.
> I think this is fairly important as gnulibc2 is the new standard
> c-library for linux.
It's not really important to make cross-compiling working. Get and
install glibc with your current compiler.
-- Uli
---------------. drepper at gnu.org ,-. Rubensstrasse 5
Ulrich Drepper \ ,-------------------' \ 76149 Karlsruhe/Germany
Cygnus Solutions `--' drepper at cygnus.com `------------------------
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~1997-12-03 12:54 UTC | newest]
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1997-12-03 5:46 gnu-libc and egcs problems on linux Mike Neuhauser
1997-12-03 10:32 ` Ulrich Drepper
1997-12-03 10:32 ` Mike Neuhauser
1997-12-03 10:32 ` Ulrich Drepper
1997-12-03 10:32 ` Mike Neuhauser
1997-12-03 12:54 ` Ulrich Drepper
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