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Re: [Xen-devel] build error: strerror() ...

On Fri, Dec 08, 2006 at 04:36:24PM +0000, Keir Fraser wrote:
> strerror_r() sucks. I removed it and used a pthread mutex instead.

If you  '#define _XOPEN_SOURCE 600'  then glibc will provide the standards
compliant version of strerror_r which always uses the user supplied buffer.
Seems simpler than rolling our own code using pthreads mutexes.

[quote strerror_r(3)]

       #define _XOPEN_SOURCE 600
       #include <string.h>

       int strerror_r(int errnum, char *buf, size_t buflen);
                               /* XSI-compliant strerror_r() */


       The  XSI-compliant  strerror_r() is preferred for portable applications. 
 It returns
       the error string in the user-supplied buffer buf of length buflen.
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