diff options
Diffstat (limited to 'lib/replace/libreplace_network.m4')
| -rw-r--r-- | lib/replace/libreplace_network.m4 | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/lib/replace/libreplace_network.m4 b/lib/replace/libreplace_network.m4 index b7d15eaddbd..6554a59d386 100644 --- a/lib/replace/libreplace_network.m4 +++ b/lib/replace/libreplace_network.m4 @@ -350,6 +350,50 @@ if test x"$libreplace_cv_HAVE_IFACE_IFREQ" = x"yes"; then fi fi +dnl Some old Linux systems have broken header files and +dnl miss the IPV6_V6ONLY define in netinet/in.h, +dnl but have it in linux/in6.h. +dnl We can't include both files so we just check if the value +dnl if defined and do the replacement in system/network.h +AC_CACHE_CHECK([for IPV6_V6ONLY support],libreplace_cv_HAVE_IPV6_V6ONLY,[ + AC_TRY_COMPILE([ +#include <stdlib.h> /* for NULL */ +#include <sys/socket.h> +#include <sys/types.h> +#include <netdb.h> +#include <netinet/in.h> + ], + [ +#ifndef IPV6_V6ONLY +#error no IPV6_V6ONLY +#endif + ],[ + libreplace_cv_HAVE_IPV6_V6ONLY=yes + ],[ + libreplace_cv_HAVE_IPV6_V6ONLY=no + ]) +]) +if test x"$libreplace_cv_HAVE_IPV6_V6ONLY" != x"yes"; then + dnl test for IPV6_V6ONLY + AC_CACHE_CHECK([for IPV6_V6ONLY in linux/in6.h],libreplace_cv_HAVE_LINUX_IPV6_V6ONLY_26,[ + AC_TRY_COMPILE([ + #include <linux/in6.h> + ], + [ + #if (IPV6_V6ONLY != 26) + #error no linux IPV6_V6ONLY + #endif + ],[ + libreplace_cv_HAVE_LINUX_IPV6_V6ONLY_26=yes + ],[ + libreplace_cv_HAVE_LINUX_IPV6_V6ONLY_26=no + ]) + ]) + if test x"$libreplace_cv_HAVE_LINUX_IPV6_V6ONLY_26" = x"yes"; then + AC_DEFINE(HAVE_LINUX_IPV6_V6ONLY_26,1,[Whether the system has IPV6_V6ONLY in linux/in6.h]) + fi +fi + dnl test for ipv6 AC_CACHE_CHECK([for ipv6 support],libreplace_cv_HAVE_IPV6,[ AC_TRY_LINK([ |