APR_EPROC_UNKNOWN  425 srclib/apr/include/apr_errno.h #define APR_STATUS_IS_EPROC_UNKNOWN(s)  ((s) == APR_EPROC_UNKNOWN)
APR_EPROC_UNKNOWN  131 srclib/apr/misc/unix/errorcodes.c     case APR_EPROC_UNKNOWN:
APR_EPROC_UNKNOWN  118 srclib/apr/misc/unix/otherchild.c     return APR_EPROC_UNKNOWN;
APR_EPROC_UNKNOWN   46 srclib/apr/threadproc/win32/signals.c     return APR_EPROC_UNKNOWN;