make IPv6 optional

[free-sw/xcb/libxcb] / configure.ac

diff --git a/configure.ac b/configure.ac
index eef3fa0..df554e6 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@
 
 AC_PREREQ(2.57)
 AC_INIT([libxcb],
-        1.0,
+        1.1,
         [xcb@lists.freedesktop.org])
 AC_CONFIG_SRCDIR([xcb.pc.in])
 AM_INIT_AUTOMAKE([foreign dist-bzip2])
@@ -30,8 +30,8 @@ fi
 AC_SUBST(HTML_CHECK_RESULT)
 
 # Checks for pkg-config packages
-PKG_CHECK_MODULES(XCBPROTO, xcb-proto >= 1.0)
-NEEDED="xau pthread-stubs"
+PKG_CHECK_MODULES(XCBPROTO, xcb-proto >= 1.1)
+NEEDED="pthread-stubs xau >= 0.99.2"
 PKG_CHECK_MODULES(NEEDED, $NEEDED)
 
 have_xdmcp="no"
@@ -48,6 +48,8 @@ PKG_CHECK_MODULES(XDMCP, xdmcp,
                ], [$XDMCP_LIBS]),
        [AC_MSG_RESULT(no)])
 
+AC_CHECK_HEADER([execinfo.h], [AC_DEFINE(HAVE_BACKTRACE,1,[Has backtrace*() needed for retrieving stack traces])])
+
 AC_SUBST(NEEDED)
 
 # Find the xcb-proto protocol descriptions