From: Marc Fournier <marc.fournier@camptocamp.com>
Date: Fri, 9 Aug 2013 12:53:24 +0000 (+0200)
Subject: check if libpcap has PCAP_ERROR_IFACE_NOT_UP
X-Git-Tag: collectd-5.4.1~3^2~5^2
X-Git-Url: https://git.tokkee.org/?p=collectd.git;a=commitdiff_plain;h=5fea70dbfa292536761c95ee7021a61ef925b73e

check if libpcap has PCAP_ERROR_IFACE_NOT_UP

This should prevent DNS plugin from being built on systems with libpcap
older than 1.0.0.

GitHub issue #373
---

diff --git a/configure.in b/configure.in
index a62d608b..6b437203 100644
--- a/configure.in
+++ b/configure.in
@@ -3013,6 +3013,25 @@ then
 	AC_CHECK_HEADERS(pcap-bpf.h,,
 			 [with_libpcap="no (pcap-bpf.h not found)"])
 fi
+if test "x$with_libpcap" = "xyes"
+then
+	AC_CACHE_CHECK([whether libpcap has PCAP_ERROR_IFACE_NOT_UP],
+		       [c_cv_libpcap_have_pcap_error_iface_not_up],
+		       AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <pcap.h>
+]]],
+[[[
+  int val = PCAP_ERROR_IFACE_NOT_UP;
+]]]
+		       )],
+		       [c_cv_libpcap_have_pcap_error_iface_not_up="yes"],
+		       [c_cv_libpcap_have_pcap_error_iface_not_up="no"]))
+fi
+if test "x$c_cv_libpcap_have_pcap_error_iface_not_up" != "xyes"
+then
+		with_libpcap="no (pcap.h misses PCAP_ERROR_IFACE_NOT_UP)"
+fi
 AM_CONDITIONAL(BUILD_WITH_LIBPCAP, test "x$with_libpcap" = "xyes")
 # }}}