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Index: nxssh/m4/openssh.m4
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ nxssh/m4/openssh.m4 2008-11-27 23:40:04.338830066 +0100
@@ -0,0 +1,86 @@
+dnl $Id: aclocal.m4,v 1.6 2005/09/19 16:33:39 tim Exp $
+dnl
+dnl OpenSSH-specific autoconf macros
+dnl
+
+
+dnl OSSH_CHECK_HEADER_FOR_FIELD(field, header, symbol)
+dnl Does AC_EGREP_HEADER on 'header' for the string 'field'
+dnl If found, set 'symbol' to be defined. Cache the result.
+dnl TODO: This is not foolproof, better to compile and read from there
+AC_DEFUN(OSSH_CHECK_HEADER_FOR_FIELD, [
+# look for field '$1' in header '$2'
+ dnl This strips characters illegal to m4 from the header filename
+ ossh_safe=`echo "$2" | sed 'y%./+-%__p_%'`
+ dnl
+ ossh_varname="ossh_cv_$ossh_safe""_has_"$1
+ AC_MSG_CHECKING(for $1 field in $2)
+ AC_CACHE_VAL($ossh_varname, [
+ AC_EGREP_HEADER($1, $2, [ dnl
+ eval "$ossh_varname=yes" dnl
+ ], [ dnl
+ eval "$ossh_varname=no" dnl
+ ]) dnl
+ ])
+ ossh_result=`eval 'echo $'"$ossh_varname"`
+ if test -n "`echo $ossh_varname`"; then
+ AC_MSG_RESULT($ossh_result)
+ if test "x$ossh_result" = "xyes"; then
+ AC_DEFINE($3, 1, [Define if you have $1 in $2])
+ fi
+ else
+ AC_MSG_RESULT(no)
+ fi
+])
+
+dnl OSSH_PATH_ENTROPY_PROG(variablename, command):
+dnl Tidiness function, sets 'undef' if not found, and does the AC_SUBST
+AC_DEFUN(OSSH_PATH_ENTROPY_PROG, [
+ AC_PATH_PROG($1, $2)
+ if test -z "[$]$1" ; then
+ $1="undef"
+ fi
+ AC_SUBST($1)
+])
+
+dnl Check for socklen_t: historically on BSD it is an int, and in
+dnl POSIX 1g it is a type of its own, but some platforms use different
+dnl types for the argument to getsockopt, getpeername, etc. So we
+dnl have to test to find something that will work.
+AC_DEFUN([TYPE_SOCKLEN_T],
+[
+ AC_CHECK_TYPE([socklen_t], ,[
+ AC_MSG_CHECKING([for socklen_t equivalent])
+ AC_CACHE_VAL([curl_cv_socklen_t_equiv],
+ [
+ # Systems have either "struct sockaddr *" or
+ # "void *" as the second argument to getpeername
+ curl_cv_socklen_t_equiv=
+ for arg2 in "struct sockaddr" void; do
+ for t in int size_t unsigned long "unsigned long"; do
+ AC_TRY_COMPILE([
+ #include <sys/types.h>
+ #include <sys/socket.h>
+
+ int getpeername (int, $arg2 *, $t *);
+ ],[
+ $t len;
+ getpeername(0,0,&len);
+ ],[
+ curl_cv_socklen_t_equiv="$t"
+ break
+ ])
+ done
+ done
+
+ if test "x$curl_cv_socklen_t_equiv" = x; then
+ AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
+ fi
+ ])
+ AC_MSG_RESULT($curl_cv_socklen_t_equiv)
+ AC_DEFINE_UNQUOTED(socklen_t, $curl_cv_socklen_t_equiv,
+ [type to use in place of socklen_t if not defined])],
+ [#include <sys/types.h>
+#include <sys/socket.h>])
+])
+
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