diff -urNp a/net-snmp-config.in b/net-snmp-config.in
--- a/net-snmp-config.in	2018-07-18 13:43:12.264426052 +0200
+++ b/net-snmp-config.in	2018-07-18 13:52:06.917089518 +0200
@@ -140,10 +140,10 @@ else
       ;;
     #################################################### compile
     --base-cflags)
-      echo @CFLAGS@ @CPPFLAGS@ -I${NSC_INCLUDEDIR}
+      echo -I${NSC_INCLUDEDIR}
       ;;
     --cflags|--cf*)
-      echo @CFLAGS@ @DEVFLAGS@ @CPPFLAGS@ -I. -I${NSC_INCLUDEDIR}
+      echo @DEVFLAGS@ -I. -I${NSC_INCLUDEDIR}
       ;;
     --srcdir)
       echo $NSC_SRCDIR
diff -urNp a/perl/agent/default_store/Makefile.PL b/perl/agent/default_store/Makefile.PL
--- a/perl/agent/default_store/Makefile.PL	2018-07-18 13:43:12.170426290 +0200
+++ b/perl/agent/default_store/Makefile.PL	2018-07-18 13:51:31.812176486 +0200
@@ -83,7 +83,7 @@ sub AgentDefaultStoreInitMakeParams {
                 " " . $Params{'LIBS'};
 	    $Params{'CCFLAGS'} = "-I../../../include " . $Params{'CCFLAGS'};
 	}
-	$Params{'CCFLAGS'} =~ s/ -W(all|inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
+	$Params{'CCFLAGS'} =~ s/ -W(inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
         $Params{'CCFLAGS'} .= ' -Wformat';
 	if ($Params{'LIBS'} eq "" || $Params{'CCFLAGS'} eq "") {
 	    die "You need to install net-snmp first (I can't find net-snmp-config)";
diff -urNp a/perl/agent/Makefile.PL b/perl/agent/Makefile.PL
--- a/perl/agent/Makefile.PL	2018-07-18 13:43:12.169426292 +0200
+++ b/perl/agent/Makefile.PL	2018-07-18 13:52:53.884973275 +0200
@@ -98,7 +98,7 @@ sub AgentInitMakeParams {
 	    $Params{'LIBS'} = `$opts->{'nsconfig'} --libdir` . $Params{'LIBS'};
 #	    $Params{'PREREQ_PM'} = {'NetSNMP::OID' => '0.1'};
 	}
-	$Params{'CCFLAGS'} =~ s/ -W(all|inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
+	$Params{'CCFLAGS'} =~ s/ -W(inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
         $Params{'CCFLAGS'} .= ' -Wformat';
 	if ($Params{'LIBS'} eq "" || $Params{'CCFLAGS'} eq "") {
 	    die "You need to install net-snmp first (I can't find net-snmp-config)";
diff -urNp a/perl/agent/Support/Makefile.PL b/perl/agent/Support/Makefile.PL
--- a/perl/agent/Support/Makefile.PL	2018-07-18 13:43:12.169426292 +0200
+++ b/perl/agent/Support/Makefile.PL	2018-07-18 13:53:11.414929921 +0200
@@ -90,7 +90,7 @@ sub SupportInitMakeParams {
             " " . $Params{'LIBS'};
 	$Params{'CCFLAGS'} = "-I../../include " . $Params{'CCFLAGS'};
       }
-      $Params{'CCFLAGS'} =~ s/ -W(all|inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
+      $Params{'CCFLAGS'} =~ s/ -W(inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
       $Params{'CCFLAGS'} .= ' -Wformat';
       if ($Params{'LIBS'} eq "" || $Params{'CCFLAGS'} eq "") {
 	die "You need to install net-snmp first (I can't find net-snmp-config)";
diff -urNp a/perl/ASN/Makefile.PL b/perl/ASN/Makefile.PL
--- a/perl/ASN/Makefile.PL	2018-07-18 13:43:12.171426287 +0200
+++ b/perl/ASN/Makefile.PL	2018-07-18 13:53:46.652842822 +0200
@@ -93,7 +93,7 @@ sub AsnInitMakeParams {
             " " . $Params{'LIBS'};
 	$Params{'CCFLAGS'} = "-I../../include " . $Params{'CCFLAGS'};
       }
-      $Params{'CCFLAGS'} =~ s/ -W(all|inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
+      $Params{'CCFLAGS'} =~ s/ -W(inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
       $Params{'CCFLAGS'} .= ' -Wformat';
       if ($Params{'LIBS'} eq "" || $Params{'CCFLAGS'} eq "") {
 	die "You need to install net-snmp first (I can't find net-snmp-config)";
diff -urNp a/perl/default_store/Makefile.PL b/perl/default_store/Makefile.PL
--- a/perl/default_store/Makefile.PL	2018-07-18 13:43:12.175426277 +0200
+++ b/perl/default_store/Makefile.PL	2018-07-18 13:54:20.814758441 +0200
@@ -83,7 +83,7 @@ sub DefaultStoreInitMakeParams {
                 " " . $Params{'LIBS'};
 	    $Params{'CCFLAGS'} = "-I../../include " . $Params{'CCFLAGS'};
 	}
-	$Params{'CCFLAGS'} =~ s/ -W(all|inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
+	$Params{'CCFLAGS'} =~ s/ -W(inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
         $Params{'CCFLAGS'} .= ' -Wformat';
 	if ($Params{'LIBS'} eq "" || $Params{'CCFLAGS'} eq "") {
 	    die "You need to install net-snmp first (I can't find net-snmp-config)";
diff -urNp a/perl/OID/Makefile.PL b/perl/OID/Makefile.PL
--- a/perl/OID/Makefile.PL	2018-07-18 13:43:12.175426277 +0200
+++ b/perl/OID/Makefile.PL	2018-07-18 13:54:43.348702811 +0200
@@ -90,7 +90,7 @@ sub OidInitMakeParams {
 #	} else {
 #	    $Params{'PREREQ_PM'} = {'SNMP' => '5.0'};
 	}
-	$Params{'CCFLAGS'} =~ s/ -W(all|inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
+	$Params{'CCFLAGS'} =~ s/ -W(inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
         $Params{'CCFLAGS'} .= ' -Wformat';
 	if ($Params{'LIBS'} eq "" || $Params{'CCFLAGS'} eq "") {
 	    die "You need to install net-snmp first (I can't find net-snmp-config)";
diff -urNp a/perl/SNMP/Makefile.PL b/perl/SNMP/Makefile.PL
--- a/perl/SNMP/Makefile.PL	2018-07-18 13:43:12.173426282 +0200
+++ b/perl/SNMP/Makefile.PL	2018-07-18 13:55:07.220643903 +0200
@@ -103,7 +103,7 @@ sub SnmpInitMakeParams {
 #	} else {
 #	    $Params{'PREREQ_PM'} = { 'NetSNMP::default_store' => 0.01 };
 	}
-	$Params{'CCFLAGS'} =~ s/ -W(all|inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
+	$Params{'CCFLAGS'} =~ s/ -W(inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
         $Params{'CCFLAGS'} .= ' -Wformat';
 	if (!$ENV{'NETSNMP_PREFIX'}) {
 	    $prefix            = `$opts->{'nsconfig'} --prefix`;
diff -urNp a/perl/TrapReceiver/Makefile.PL b/perl/TrapReceiver/Makefile.PL
--- a/perl/TrapReceiver/Makefile.PL	2018-07-18 13:43:12.172426285 +0200
+++ b/perl/TrapReceiver/Makefile.PL	2018-07-18 13:55:43.100647233 +0200
@@ -132,7 +132,7 @@ sub TrapReceiverInitMakeParams {
             $Params{'LIBS'} = `$opts->{'nsconfig'} --libdir` . " $Params{'LIBS'}";
         }
 
-	$Params{'CCFLAGS'} =~ s/ -W(all|inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
+	$Params{'CCFLAGS'} =~ s/ -W(inline|strict-prototypes|write-strings|cast-qual|no-char-subscripts)//g; # ignore developer warnings
         $Params{'CCFLAGS'} .= ' -Wformat';
 	if ($Params{'CCFLAGS'} eq "") {
 	    die "You need to install net-snmp first (I can't find net-snmp-config)";