X-Git-Url: https://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=configure.ac;h=7b4c84295cf086c081b54ada7062c6347b6672f2;hp=e1acf8064c7a52fef7fe59dfb5ad65fb6456bdb9;hb=HEAD;hpb=0a6757da66f2c4995d7754d93545fa88996d480b

diff --git a/configure.ac b/configure.ac
index e1acf80..11b62f5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -75,7 +75,17 @@ AM_COND_IF([LINUX], [
         linux/if_ether.h        \
         linux/if_packet.h       \
         netinet/if_ether.h      \
-        netpacket/packet.h])])
+        netpacket/packet.h])
+
+    AC_MSG_CHECKING([for struct sockaddr_ll in <linux/if_packet.h>])
+    AC_COMPILE_IFELSE(
+	[AC_LANG_PROGRAM([@%:@include <linux/if_packet.h>], [sizeof(struct sockaddr_ll)])],
+	[AC_MSG_RESULT([yes])
+	 AC_DEFINE(HAVE_STRUCT_SOCKADDR_LL, 1, [Struct sockaddr_ll is present on system])
+	],
+	AC_MSG_RESULT([no]))
+])
+
 
 AC_CHECK_SIZEOF(unsigned int)
 AC_CHECK_SIZEOF(unsigned long)