build: remove --disable-ipv6
Building with IPv6 disabled tends to break rather often and sprinkles
ugly #ifdefs around the code. All that only to support systems where
the C library doesn't have IPv6 capability.
The year now being 2015, if this is a problem the thing to fix is the C
library.
The implication of this patch is that future patches need not care about
HAVE_IPV6 = 0 and may remove ifdefs gratuitously. This patch doesn't
remove these ifdefs to not create unneccessary churn.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Acked-by: Paul Jakma <paul@jakma.org>
diff --git a/configure.ac b/configure.ac
index 715f35d..33a1cd0 100755
--- a/configure.ac
+++ b/configure.ac
@@ -198,8 +198,6 @@
[ test "x$withval" != "xno" && with_pkg_git_version="yes" ])
AC_ARG_ENABLE(vtysh,
AS_HELP_STRING([--enable-vtysh], [include integrated vty shell for Quagga]))
-AC_ARG_ENABLE(ipv6,
- AS_HELP_STRING([--disable-ipv6], [turn off IPv6 related features and daemons]))
AC_ARG_ENABLE(doc,
AS_HELP_STRING([--disable-doc], [do not build docs]))
AC_ARG_ENABLE(zebra,
@@ -1026,51 +1024,37 @@
dnl IPv6 check
dnl ----------
AC_MSG_CHECKING(whether does this OS have IPv6 stack)
-if test "${enable_ipv6}" = "no"; then
- AC_MSG_RESULT(disabled)
-else
dnl ---------
dnl KAME IPv6
dnl ---------
if grep WIDE /usr/include/netinet6/in6.h >/dev/null 2>&1; then
- zebra_cv_ipv6=yes
AC_DEFINE(KAME,1,KAME IPv6)
AC_MSG_RESULT(KAME)
dnl ------------------------------------
dnl Solaris 9, 10 and potentially higher
dnl ------------------------------------
elif test x"$opsys" = x"sol8"; then
- zebra_cv_ipv6=yes;
AC_DEFINE(SOLARIS_IPV6, 1, Solaris IPv6)
AC_MSG_RESULT(Solaris IPv6)
dnl ----------
dnl Linux IPv6
dnl ----------
elif test x"$opsys" = x"gnu-linux"; then
- zebra_cv_ipv6=yes
AC_DEFINE(LINUX_IPV6,1,Linux IPv6 stack)
AC_MSG_RESULT(Linux IPv6)
else
- AC_MSG_RESULT(Unknown OS)
+ AC_MSG_ERROR([Failed to detect IPv6 stack])
fi
-fi
-if test x"$zebra_cv_ipv6" = x"yes"; then
- AC_DEFINE(HAVE_IPV6,1,IPv6)
- RIPNGD="ripngd"
- OSPF6D="ospf6d"
-elif test x"${enable_ipv6}" = x"yes"; then
- AC_MSG_ERROR([--enable-ipv6 given but IPv6 stack unknown])
-fi
+dnl this is unconditial, for compatibility
+AC_DEFINE(HAVE_IPV6,1,IPv6)
dnl ------------------
dnl IPv6 header checks
dnl ------------------
-if test "x${zebra_cv_ipv6}" = "xyes"; then
AC_CHECK_HEADERS([netinet6/in6.h netinet/in6_var.h netinet/icmp6.h \
netinet6/in6_var.h netinet6/nd6.h], [], [],
QUAGGA_INCLUDES)
-fi
m4_define([QUAGGA_INCLUDES],dnl
QUAGGA_INCLUDES
@@ -1157,16 +1141,14 @@
AM_CONDITIONAL(OSPFCLIENT, test "x$OSPFCLIENT" = "xospfclient")
case "${enable_ripngd}" in
- "yes") RIPNGD="ripngd";;
"no" ) RIPNGD="";;
- * ) ;;
+ * ) RIPNGD="ripngd";;
esac
AM_CONDITIONAL(RIPNGD, test "x$RIPNGD" = "xripngd")
case "${enable_ospf6d}" in
- "yes") OSPF6D="ospf6d";;
"no" ) OSPF6D="";;
- * ) ;;
+ * ) OSPF6D="ospf6d";;
esac
AM_CONDITIONAL(OSPF6D, test "x$OSPF6D" = "xospf6d")