Re: c-ares 1.3.0 compile failure on HP-UX

On Sat, 3 Sep 2005, Henrik Stoerner wrote:

> One of my users reported that the new c-ares 1.3.0 library fails to compile
> on HP-UX 11.

Found it!

Annoying. I just built the CVS version perfectly fine on both HP-UX 11.00 and
11.11 using the native HP compiler on both...

I think the difference is because the machines I use don't seem to have ipv6
support at all, while the config.h your user had showed
HAVE_STRUCT_SOCKADDR_IN6 defined.

And yes! The config.log[*] shows the problem clearly. The 'sin6_scope_id' is
not found in the struct, but yet the configure script believes so and sets the
define as it is existant!

I hope this patch fixes the problem:

diff -u -r1.28 configure.ac
--- configure.ac 19 Jun 2005 16:58:40 -0000 1.28
+++ configure.ac 10 Sep 2005 21:04:00 -0000
@@ -176,7 +176,10 @@
  )

  if test "$ac_have_sockaddr_in6" = "yes" ; then
-CARES_CHECK_STRUCT_MEMBER(
+AC_CHECK_MEMBER(struct sockaddr_in6.sin6_scope_id,
+ AC_DEFINE_UNQUOTED(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID,1,
+ [Define to 1 if your struct sockaddr_in6 has sin6_scope_id.])
+ , ,
    [
  #ifdef HAVE_SYS_TYPES_H
  #include <sys/types.h>
@@ -188,8 +191,6 @@
  #include <netinet/in.h>
  #endif
    ], [sockaddr_in6], [sin6_scope_id],
- AC_DEFINE_UNQUOTED(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID,1,
- [Define to 1 if your struct sockaddr_in6 has sin6_scope_id.])
  )
  fi

[*] = http://www.hswn.dk/~henrik/c-ares-hpux/config.log

-- 
   c-ares -- my preferred DNS asynch resolver library
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