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On Fri, Apr 24, 2009 at 8:30 AM, Carlos O'Donell <carlos@systemhalted.org> wrote: > On Fri, Apr 24, 2009 at 1:00 AM, H.J. Lu <hongjiu.lu@intel.com> wrote: >> ia64 build failed with >> >> /export/build/gnu/glibc/build-ia64-linux/libc_pic.os: In function >> `psiginfo': >> /net/gnu-6/export/gnu/src/glibc/glibc/stdio-common/psiginfo.c:182: >> undefined reference to `__set_errno' >> collect2: ld returned 1 exit status >> make[3]: *** [/export/build/gnu/glibc/build-ia64-linux/libc.so] Error 1 >> make[3]: Leaving directory `/net/gnu-6/export/gnu/src/glibc/glibc' >> >> stdio-common/psiginfo.c has >> >> write_not_cancel (STDERR_FILENO, buf, strlen (buf)); >> >> which may use __set_errno. But <errno.h> may not be included. This >> patch fixes it. > > This is the wrong patch, write_not_cancel expands to INLINE_SYSCALL, > which is defined in sysdep.h. If you get this build error it means > your targets sysdep.h file forgot to include errno.h and used > __set_errno in the INLINE_SYSCALL. > > The correct patch is to add #include <errno.h> to your target sysdep.h Good idea. Here is the updated patch. -- H.J. --- 2009-04-24 H.J. Lu <hongjiu.lu@intel.com> * sysdeps/unix/sysv/linux/ia64/sysdep.h: Include <errno.h>.
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