|  | GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. | 
|  | # Local configure fragment for sysdeps/nacl. | 
|  |  | 
|  | nacl_probe_file=native_client/src/trusted/service_runtime/include/sys/errno.h | 
|  |  | 
|  | # sysheaders is set by the --with-headers=... option to configure. | 
|  | # For NaCl, we require that the option be given and point to the | 
|  | # native_client/.. source tree directory. | 
|  | test -n "$sysheaders" || { | 
|  | AC_MSG_ERROR([must supply --with-headers=DIR with native_client source tree]) | 
|  | } | 
|  | test -r "$sysheaders/$nacl_probe_file" || { | 
|  | AC_MSG_ERROR([$sysheaders does not appear to be a native_client source tree]) | 
|  | } | 
|  |  | 
|  | # nscd is extremely useless in the NaCl context. | 
|  | build_nscd=no | 
|  | use_nscd=no |