New checks.

1998-08-06  Martin Baulig  <martin@home-of-linux.org>

	* configure.in (HAVE_SOCKETS, HAVE_SOCKADDR_SUN_LEN): New checks.

ChangeLog

@@ -1,5 +1,7 @@
 1998-08-06  Martin Baulig  <martin@home-of-linux.org>
 
+	* configure.in (HAVE_SOCKETS, HAVE_SOCKADDR_SUN_LEN): New checks.
+
 	* include/glibtop/*.h: Using `GLIBTOP_GUILE' instead of `HAVE_GUILE'
 	so one should be able to use libgtop without guile in an application
 	even if guile is installed.

acconfig.h

@@ -95,6 +95,9 @@
 /* to fix a bug in autoheader on DEC OSF1. */
 #undef HAVE_PROGRAM_INVOCATION_NAME
 
+#undef HAVE_SOCKETS
+#undef HAVE_SOCKADDR_SUN_LEN
+
 #undef HAVE_LIBJPEG
 #undef HAVE_LIBGIF
 #undef HAVE_LIBTIFF

configure.in

@@ -97,6 +97,21 @@ AC_CHECK_LIB(kvm, kvm_open)
 dnl For DEC OSF1
 AC_CHECK_LIB(mach, vm_statistics)
 
+dnl Check for Internet sockets.
+AC_CHECK_FUNC(socket,
+ [AC_CHECK_HEADER(netinet/in.h,
+   [AC_CHECK_HEADER(arpa/inet.h, [
+  AC_DEFINE(HAVE_SOCKETS)
+      AC_MSG_CHECKING("for sun_len member in struct sockaddr_un")
+      AC_TRY_LINK([
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+      ],
+      [static struct sockaddr_un x; x.sun_len = 1;],
+      [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SOCKADDR_SUN_LEN)],
+      [AC_MSG_RESULT(no)])])])])
+
 dnl Checks for library functions.
 AC_FUNC_ALLOCA
 AC_FUNC_MMAP