Improved Solaris support
diff --git a/acinclude.m4 b/acinclude.m4
new file mode 100644
index 0000000..2aea10b
--- /dev/null
+++ b/acinclude.m4
@@ -0,0 +1,17 @@
+dnl Available from the GNU Autoconf Macro Archive at:
+dnl http://www.gnu.org/software/ac-archive/htmldoc/adl_func_getopt_long.html
+dnl
+AC_DEFUN([adl_FUNC_GETOPT_LONG],
+ [AC_PREREQ(2.49)dnl
+ # clean out junk possibly left behind by a previous configuration
+ rm -f lib/getopt.h
+ # Check for getopt_long support
+ AC_CHECK_HEADERS([getopt.h])
+ AC_CHECK_FUNCS([getopt_long],,
+ [# FreeBSD has a gnugetopt library for this
+ AC_CHECK_LIB([gnugetopt],[getopt_long],[AC_DEFINE([HAVE_GETOPT_LONG])],
+ [# use the GNU replacement
+ AC_LIBOBJ(getopt)
+ AC_LIBOBJ(getopt1)
+ AC_CONFIG_LINKS([ggsn/getopt.h:ggsn/gnugetopt.h])
+ AC_CONFIG_LINKS([sgsnemu/getopt.h:sgsnemu/gnugetopt.h])])])])