uClibc compilation problem

Hi,
I'd like to build a toolchain for mips with nommu (using buildroot-2009.02). I get the following error:

[...]
CC libc/stdio/tmpnam.o
CC libc/stdio/tmpnam_r.o
CC libc/stdio/popen.o
libc/stdio/popen.c:45: error: 'fork' undeclared here (not in a function) libc/stdio/popen.c:45: warning: type defaults to 'int' in declaration of 'fork'
libc/stdio/popen.c: In function 'popen':
libc/stdio/popen.c:100: error: called object 'fork' is not a function [...]

The problematic part in popen.c is:

[...]
/* uClinux-2.0 has vfork, but Linux 2.0 doesn't */ #include <sys/syscall.h>
#if ! defined __NR_vfork

# define vfork fork
# define VFORK_LOCK             ((void) 0)
# define VFORK_UNLOCK           ((void) 0)
libc_hidden_proto(fork)
#endif
[...]

I'm wondering why __NR_vfork is not defined... Can someone give me a punch into the right direction?

Thanks,
Michael

Michael> Hi,

Michael> I'd like to build a toolchain for mips with nommu (using Michael> buildroot-2009.02). I get the following error:

Please post your .config

Michael> [...]

 Michael>   CC libc/stdio/tmpnam.o
 Michael>   CC libc/stdio/tmpnam_r.o
 Michael>   CC libc/stdio/popen.o

Michael> libc/stdio/popen.c:45: error: 'fork' undeclared here (not in a function) Michael> libc/stdio/popen.c:45: warning: type defaults to 'int' in declaration of Michael> 'fork'
Michael> libc/stdio/popen.c: In function 'popen':
Michael> libc/stdio/popen.c:100: error: called object 'fork' is not a function Michael> [...]

You might have more luck asking on the uclibc mailing list.

Bye, Peter Korsgaard

Ok, both buildroot and uclibc configs are attached.

Thanks, I'll consider that too.
Btw, when enabling MMU support in uClibc, everything compiles fine.

Michael
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