configure.in, src/Makefile.am: Only link against Net-SNMP if it is found.

diff --git a/configure.in b/configure.in
index d012420..0b8299d 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -1219,6 +1219,32 @@ else
 fi
 AM_CONDITIONAL(BUILD_WITH_LIBIPTC, test "x$with_libiptc" = "xyes")
 
+AC_ARG_WITH(libnetsnmp, [AS_HELP_STRING([--with-libnetsnmp@<:@=PREFIX@:>@], [Path to the Net-SNMPD library.])],
+[
+       if test "x$withval" != "xno" && test "x$withval" != "xyes"
+       then
+               LDFLAGS="$LDFLAGS -L$withval/lib"
+               CPPFLAGS="$CPPFLAGS -I$withval/include"
+               with_libnetsnmp="yes"
+       fi
+],
+[with_libnetsnmp="yes"])
+if test "x$with_libnetsnmp" = "xyes"
+then
+       AC_CHECK_LIB(netsnmp, init_snmp,
+       [
+               AC_DEFINE(HAVE_LIBSNMP, 1, [Define to 1 if you have the Net-SNMP library (-lnetsnmp).])
+       ], [with_libnetsnmp="no (libnetsnmp not found)"])
+fi
+if test "x$with_libnetsnmp" = "xyes"
+then
+       AC_CHECK_HEADERS(net-snmp/net-snmp-config.h,
+       [
+               AC_DEFINE(HAVE_NET_SNMP_NET_SNMP_CONFIG_H, 1, [Define to 1 if you have the <net-snmp/net-snmp-config.h> header file.])
+       ], [with_libnetsnmp="no (net-snmp/net-snmp-config.h not found)"])
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBNETSNMP, test "x$with_libnetsnmp" = "xyes")
+
 AC_ARG_WITH(libupsclient, [AS_HELP_STRING([--with-libupsclient@<:@=PREFIX@:>@], [Path to libupsclient.])],
 [
        if test "x$withval" != "xno" && test "x$withval" != "xyes"
@@ -1377,6 +1403,7 @@ Configuration:
     libiptc . . . . . . $with_libiptc
     libkstat  . . . . . $with_kstat
     libmysql  . . . . . $with_libmysql
+    libnetsnmp  . . . . $with_libnetsnmp
     liboconfig  . . . . $with_liboconfig
     liboping  . . . . . $with_liboping
     libpcap . . . . . . $with_libpcap

diff --git a/src/Makefile.am b/src/Makefile.am
index f7168a9..6642aa0 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -475,7 +475,10 @@ endif
 if BUILD_MODULE_SNMP
 pkglib_LTLIBRARIES += snmp.la
 snmp_la_SOURCES = snmp.c
-snmp_la_LDFLAGS = -module -avoid-version -lsnmp
+snmp_la_LDFLAGS = -module -avoid-version
+if BUILD_WITH_LIBNETSNMP
+snmp_la_LDFLAGS += -lnetsnmp
+endif
 collectd_LDADD += "-dlopen" snmp.la
 collectd_DEPENDENCIES += snmp.la
 endif