Re: pkg/51127: bootstrap fails on SunOS 5.6

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR pkg/51127; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: pkg/51127: bootstrap fails on SunOS 5.6
Date: Mon, 9 May 2016 21:55:13 +0200

 Here is a sketch for an enhanced autoconf test - using the derived
 value and exporting the definition needs to be added.
 
 Martin
 
 Index: configure.ac
 ===================================================================
 RCS file: /cvsroot/pkgsrc/pkgtools/libnbcompat/files/configure.ac,v
 retrieving revision 1.86
 diff -u -r1.86 configure.ac
 --- configure.ac	1 Sep 2015 23:17:51 -0000	1.86
 +++ configure.ac	1 May 2016 10:41:13 -0000
 @@ -345,6 +345,44 @@
  	AC_LIBOBJ(getaddrinfo)
  fi
  
 +dnl If we do not have socklen_t, figure out what to substitute for it
 +old_CFLAGS="$CFLAGS"
 +if test "x$ac_cv_type_socklen_t" = xno; then
 +	AC_MSG_CHECKING(whether compiler understands -Wall -Werror)
 +	CFLAGS="$CFLAGS -Wall -Werror"
 +	AC_TRY_COMPILE([],[], [
 +
 +	AC_MSG_RESULT(yes)
 +	AC_MSG_CHECKING(for type to use instead of socklen_t)
 +	socklen_t_found="no"
 +	socklen_surrogate=""
 +	AC_DEFUN(AC_TRY_SOCKLEN, [
 +		AC_TRY_COMPILE([#if HAVE_SYS_TYPES_H
 +# include <sys/types.h>
 +#endif
 +#include <sys/socket.h>
 +], [ 
 +  $1 l;                       
 +  getsockname(0, 0, &l);                
 +], [ socklen_t_found=yes ], [ socklen_t_found=no ])
 +		if test "x[$]socklen_t_found" = "xyes"; then
 +			socklen_surrogate="$1"
 +		fi
 +	])
 +	AC_TRY_SOCKLEN(int)
 +	if test $socklen_t_found = "no"; then
 +		AC_TRY_SOCKLEN(size_t)
 +		if test $socklen_t_found = "no"; then
 +			AC_TRY_SOCKLEN(unsigned int)
 +		fi
 +	fi
 +	], [ AC_MSG_RESULT(no) ])
 +fi
 +AC_DEFINE(SOCKLEN_SURROGATE, socklen_surrogate,
 +	[Type to use as surrogate for socklen_t])
 +AC_MSG_RESULT($socklen_surrogate)
 +CFLAGS="$old_CFLAGS"
 +
  need_findenv=no
  AC_CHECK_FUNCS([getenv setenv unsetenv], [:], [need_findenv=yes])
  if test $need_findenv = yes; then