Following up the IRC admin meeting, I'm hereby proposing a patch that makes the
"as needed" support (fulfill library dependencies at library link time rather
than application link time) more complete. It adds libwrap, libnm (HP-UX),
libperfstat (AIX) and libadm (Solaris) to the set of candidates formerly
represented by libcrypto and libsensors only.
Here are a few pointers to the original problems:
http://sourceforge.net/tracker/index.php?func=detail&aid=1493522&group_id=12694&atid=312694
http://sourceforge.net/tracker/index.php?func=detail&aid=1398873&group_id=12694&atid=312694
http://sourceforge.net/mailarchive/message.php?msg_id=37100401
http://mysqldump.azundris.com/archives/63-Sysadmins-Nightly-Mental-Pain-SNMP.html
(search for libwrap)
The attached patch fixes the linking behavior *by default*. It's much easier to
understand this way (IMHO) and it'd be pretty straightforward to make it depend
on --enable-as-needed once the approach is agreed upon. It passed last night's
build testing on the whole range of available build farm machines.
I'm calling for votes to include this in 5.4.
+Thomas
--
Thomas Anders (thomas.anders at blue-cable.de)
Index: configure.in
===================================================================
RCS file: /cvsroot/net-snmp/net-snmp/configure.in,v
retrieving revision 5.289
diff -u -r5.289 configure.in
--- configure.in 26 Oct 2006 11:14:02 -0000 5.289
+++ configure.in 28 Oct 2006 01:16:30 -0000
@@ -3265,27 +3265,15 @@
AC_CHECK_HEADERS(sys/dkio.h sys/diskio.h sys/pstat.h linux/hdreg.h pkglocs.h)
# for HostRes (Solaris 2.x at least)
AC_CHECK_HEADERS(pkginfo.h,
- AC_CHECK_LIB(adm, pkginfo, AC_DEFINE(HAVE_PKGINFO)
- LIBS="${LIBS} -ladm"
- AGENTLIBS="${AGENTLIBS} -ladm"))
-
-case $target_os in
- aix*) # AIX perfstat library, needed for CPU/memory statistics
- AC_CHECK_HEADERS(libperfstat.h,
- AC_CHECK_LIB(perfstat, perfstat_cpu_total, AC_DEFINE(HAVE_PERFSTAT)
- AGENTLIBS="${AGENTLIBS} -lperfstat"), AC_MSG_ERROR([
-
-*** To monitor CPU/memory values in AIX you need to install
-*** libperfstat which can be found in bos.perf
-]))
- ;;
- hpux*) # HP-UX agent needs open_mib
- AC_CHECK_LIB(nm, open_mib, AC_DEFINE(HAVE_LIBNM)
- AGENTLIBS="${AGENTLIBS} -lnm")
- ;;
- *)
- ;;
-esac
+ AC_CHECK_LIB(adm, pkginfo,
+ AC_DEFINE(HAVE_PKGINFO)
+ LMIBLIBS="${LMIBLIBS} -ladm"))
+AC_CHECK_LIB(perfstat, perfstat_cpu_total,
+ LMIBLIBS="${LMIBLIBS} -lperfstat")
+AC_CHECK_LIB(nm, open_mib,
+ LMIBLIBS="${LMIBLIBS} -lnm")
+AC_SUBST(LMIBLIBS)
+
# WIN32
# (mingw32 must link winsock explicitly)
AC_CHECK_HEADERS(winsock.h,[
Index: agent/Makefile.in
===================================================================
RCS file: /cvsroot/net-snmp/net-snmp/agent/Makefile.in,v
retrieving revision 5.23
diff -u -r5.23 Makefile.in
--- agent/Makefile.in 19 Oct 2006 15:50:07 -0000 5.23
+++ agent/Makefile.in 28 Oct 2006 01:16:35 -0000
@@ -79,7 +79,7 @@
LOCAL_LIBS =
PERLLDOPTS = @PERLLDOPTS@
LIBS = ../snmplib/libnetsnmp.$(LIB_EXTENSION)$(LIB_VERSION) @AGENTLIBS@ $(PERLLDOPTS)
-OUR_AGENT_LIBS = $(INSTALLLIBS) $(HELPERLIB) @WRAPLIBS@ $(LIBS) @DLLIBS@
+OUR_AGENT_LIBS = $(INSTALLLIBS) $(HELPERLIB) $(LIBS) @DLLIBS@
CPPFLAGS = $(TOP_INCLUDES) -I. $(AGENT_INCLUDES) $(MIBGROUP_INCLUDES) \
$(SNMPLIB_INCLUDES) @CPPFLAGS@
@@ -133,11 +133,11 @@
libnetsnmpagent.$(LIB_EXTENSION)$(LIB_VERSION): ${LLIBAGENTOBJS}
- $(LIB_LD_CMD) libnetsnmpagent.$(LIB_EXTENSION)$(LIB_VERSION) ${LLIBAGENTOBJS} $(LIB_LD_LIBS)
+ $(LIB_LD_CMD) libnetsnmpagent.$(LIB_EXTENSION)$(LIB_VERSION) ${LLIBAGENTOBJS} $(LIB_LD_LIBS) @WRAPLIBS@
$(RANLIB) libnetsnmpagent.$(LIB_EXTENSION)$(LIB_VERSION)
libnetsnmpmibs.$(LIB_EXTENSION)$(LIB_VERSION): ${LMIBOBJS}
- $(LIB_LD_CMD) libnetsnmpmibs.$(LIB_EXTENSION)$(LIB_VERSION) ${LMIBOBJS} $(LIB_LD_LIBS) @SENSORLIBS@
+ $(LIB_LD_CMD) libnetsnmpmibs.$(LIB_EXTENSION)$(LIB_VERSION) ${LMIBOBJS} $(LIB_LD_LIBS) @LMIBLIBS@ @SENSORLIBS@
$(RANLIB) libnetsnmpmibs.$(LIB_EXTENSION)$(LIB_VERSION)
agentlib: libnetsnmpagent.$(LIB_EXTENSION)$(LIB_VERSION)
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