Libs.private should contain a list of libraries the library that the package
exposes is linked too. So let's filter out unrelated link flags.

diff --git net-snmp-5.9.1/netsnmp.pc.in~ net-snmp-5.9.1/netsnmp.pc.in
index 0a1f5785a4..524ca91d82 100644
--- net-snmp-5.9.1/netsnmp.pc.in~
+++ net-snmp-5.9.1/netsnmp.pc.in
@@ -9,4 +9,4 @@ URL: http://www.net-snmp.org
 Version: @PACKAGE_VERSION@
 Cflags: -I${includedir}
 Libs: -L${libdir} -lnetsnmp
-Libs.private: @LDFLAGS@ @LNETSNMPLIBS@ @LIBS@ @PERLLDOPTS_FOR_APPS@
+Libs.private: @LNETSNMPLIBS@ @LIBS@
diff --git net-snmp-5.9.1/netsnmp-agent.pc.in~ net-snmp-5.9.1/netsnmp-agent.pc.in
index 3a1c77bbf8..3d3b308d21 100644
--- net-snmp-5.9.1/netsnmp-agent.pc.in~
+++ net-snmp-5.9.1/netsnmp-agent.pc.in
@@ -9,4 +9,4 @@ URL: http://www.net-snmp.org
 Version: @PACKAGE_VERSION@
 Cflags: -I${includedir}
 Libs: -L${libdir} -lnetsnmpmibs -lnetsnmpagent -lnetsnmp
-Libs.private: @LDFLAGS@ @LMIBLIBS@ @LAGENTLIBS@ @PERLLDOPTS_FOR_APPS@ @LNETSNMPLIBS@ @LIBS@
+Libs.private: @LMIBLIBS@ @LAGENTLIBS@ @LNETSNMPLIBS@ @LIBS@
diff --git net-snmp-5.9.1/net-snmp-config.in~ net-snmp-5.9.1/net-snmp-config.in
index 6b5abf8f83..ee81ce98fa 100644
--- net-snmp-5.9.1/net-snmp-config.in~
+++ net-snmp-5.9.1/net-snmp-config.in
@@ -193,13 +193,13 @@ else
     #################################################### client lib
     --libs)
       # use this one == --netsnmp-libs + --external-libs
-      echo $NSC_LDFLAGS $NSC_LIBDIR $NSC_SNMPLIBS $NSC_LIBS
+      echo $NSC_LIBDIR $NSC_SNMPLIBS $NSC_LIBS
       ;;
     --netsnmp-libs)
       echo $NSC_LIBDIR $NSC_BASE_SNMP_LIBS
       ;;
     --external-libs)
-      echo $NSC_LDFLAGS $NSC_LNETSNMPLIBS $NSC_LIBS @PERLLDOPTS_FOR_APPS@
+      echo $NSC_LNETSNMPLIBS $NSC_LIBS
       ;;
     #################################################### agent lib
     --base-agent-libs)
@@ -210,13 +210,13 @@ else
       ;;
     --agent-libs)
       # use this one == --netsnmp-agent-libs + --external-libs
-      echo $NSC_LDFLAGS $NSC_LIBDIR $NSC_AGENTLIBS $NSC_LIBS
+      echo $NSC_LIBDIR $NSC_AGENTLIBS $NSC_LIBS
       ;;
     --netsnmp-agent-libs)
       echo $NSC_LIBDIR $NSC_BASE_AGENT_LIBS
       ;;
     --external-agent-libs)
-      echo $NSC_LDFLAGS $NSC_LMIBLIBS $NSC_LAGENTLIBS $NSC_LNETSNMPLIBS $NSC_LIBS
+      echo $NSC_LMIBLIBS $NSC_LAGENTLIBS $NSC_LNETSNMPLIBS $NSC_LIBS
       ;;
     ####################################################
     --version|--ver*)