From: Eivind Næss <eivnaes@yahoo.com>
Date: Wed, 8 Nov 2023 05:58:01 +0000 (-0800)
Subject: Fix for failure to detect the presence of sockaddr_ll in linux/if_packet.h (#456)
X-Git-Url: https://git.ozlabs.org/?p=ppp.git;a=commitdiff_plain;h=f19193e0b52c75f579092325f1bb6361c55de8ab

Fix for failure to detect the presence of sockaddr_ll in linux/if_packet.h (#456)

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
---

diff --git a/configure.ac b/configure.ac
index 7ee06d3..11b62f5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -76,7 +76,16 @@ AM_COND_IF([LINUX], [
         linux/if_packet.h       \
         netinet/if_ether.h      \
         netpacket/packet.h])
-    AC_CHECK_TYPES([struct sockaddr_ll], [], [], [#include <linux/if_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)