added check for sin6_scope_id member in struct sockaddr_in6.

  curl_ipv6_msg="enabled"

fi

# Check if struct sockaddr_in6 have sin6_scope_id member

if test "$ipv6" = yes; then

  AC_MSG_CHECKING([if struct sockaddr_in6 has sin6_scope_id member])

  AC_TRY_COMPILE([

#include <sys/types.h>

#include <netinet/in.h>] ,

  struct sockaddr_in6 s; s.sin6_scope_id = 0; , have_sin6_scope_id=yes)

  if test "$have_sin6_scope_id" = yes; then

  	AC_MSG_RESULT([yes])

  	AC_DEFINE(HAVE_SIN6_SCOPE_ID, 1, [Define to 1 if struct sockaddr_in6 has the sin6_scope_id member])

  else

  	AC_MSG_RESULT([no])

  fi

fi

dnl **********************************************************************

dnl Check if the operating system allows programs to write to their own argv[]

dnl **********************************************************************