cancelable system() function for PPC

[Paul Mackerras <paulus samba org>]

I had tst-cancel7 failing on PPC32 because we didn't have a
PPC-specific version of the system() function which is cancelable.
The patch below adds a sysdeps/unix/sysv/linux/powerpc/system.c file
to glibc.  It just references the x86 version.  With this, tst-cancel7
passes.

Franz, what do you think of this patch?

Paul.

diff -urN cvs/libc/sysdeps/unix/sysv/linux/powerpc/system.c libc/sysdeps/unix/sysv/linux/powerpc/system.c
--- cvs/libc/sysdeps/unix/sysv/linux/powerpc/system.c	Thu Jan 01 10:00:00 1970
+++ libc/sysdeps/unix/sysv/linux/powerpc/system.c	Wed Mar 12 15:15:00 2003
@@ -0,0 +1,1 @@
+#include <sysdeps/unix/sysv/linux/i386/system.c>