diff --git a/src/makeBaseApp/Makefile.Host b/src/makeBaseApp/Makefile.Host
index fc7580016..5b18415dd 100644
--- a/src/makeBaseApp/Makefile.Host
+++ b/src/makeBaseApp/Makefile.Host
@@ -5,6 +5,9 @@ TEMPLATES_DIR = makeBaseApp
 TEMPLATES += top/Makefile
 TEMPLATES += top/config/CONFIG
 TEMPLATES += top/config/CONFIG_APP
+TEMPLATES += top/config/Makefile
+TEMPLATES += top/config/Makefile.Host
+TEMPLATES += top/config/Makefile.Vx
 TEMPLATES += top/config/RELEASE
 TEMPLATES += top/config/RULES.Db
 TEMPLATES += top/config/RULES.Host
@@ -16,6 +19,7 @@ TEMPLATES += top/config/RULES_DIRS
 TEMPLATES += top/config/RULES_TOP
 TEMPLATES += top/config/makeDbDepends.pl
 TEMPLATES += top/config/makeIocCdCommands.pl
+TEMPLATES += top/config/makeConfigAppInclude.pl
 TEMPLATES += top/config/replaceVAR.pl
 
 TEMPLATES += top/exampleApp/Makefile
diff --git a/src/makeBaseApp/top/Makefile b/src/makeBaseApp/top/Makefile
index 9b46f54a6..5e554a16d 100644
--- a/src/makeBaseApp/top/Makefile
+++ b/src/makeBaseApp/top/Makefile
@@ -1,6 +1,7 @@
 #Makefile at top of application tree
 TOP = .
 include $(TOP)/config/CONFIG_APP
+DIRS += config
 DIRS += $(wildcard *App)
 DIRS += $(wildcard *app)
 DIRS += $(wildcard iocBoot)
diff --git a/src/makeBaseApp/top/config/CONFIG_APP b/src/makeBaseApp/top/config/CONFIG_APP
index 85ea7b582..97707443d 100644
--- a/src/makeBaseApp/top/config/CONFIG_APP
+++ b/src/makeBaseApp/top/config/CONFIG_APP
@@ -7,22 +7,10 @@ ifdef INSTALL_LOCATION_APP
 INSTALL_LOCATION = $(INSTALL_LOCATION_APP)
 endif
 
-#Other share areas can be added similar to following
-#ifdef <share_top>
-#USR_INCLUDES += -I$(<share_top>)/include
-#<share_top>BIN = $(<share_top>)/bin/$(T_A)
-#endif
+USER_DBDFLAGS = -I. -I..
 
-ifdef SHARE
-USR_INCLUDES += -I$(SHARE)/include
-SHARE_BIN = $(SHARE)/bin/$(T_A)
-USER_DBDFLAGS += -I .. -I $(SHARE)/dbd -I $(EPICS_BASE)/dbd
-endif
-
-#Following only works if host provides soft links
-ifdef MASTER_IOCAPPS
-USR_INCLUDES += -I$(MASTER_IOCAPPS)/include
-MASTER_IOCAPPS_BIN = $(MASTER_IOCAPPS)/bin/$(T_A)
+ifdef T_A
+-include $(TOP)/config/O.$(T_A)/CONFIG_APP_INCLUDE
 endif
 
 # Where to install databases
diff --git a/src/makeBaseApp/top/config/Makefile b/src/makeBaseApp/top/config/Makefile
new file mode 100644
index 000000000..ec3a18069
--- /dev/null
+++ b/src/makeBaseApp/top/config/Makefile
@@ -0,0 +1,9 @@
+#
+# $Id$
+#
+
+TOP=..
+include $(TOP)/config/CONFIG_APP
+
+include $(TOP)/config/RULES_ARCHS
+
diff --git a/src/makeBaseApp/top/config/Makefile.Host b/src/makeBaseApp/top/config/Makefile.Host
new file mode 100644
index 000000000..262bf8c23
--- /dev/null
+++ b/src/makeBaseApp/top/config/Makefile.Host
@@ -0,0 +1,19 @@
+#
+# $Id$
+#
+
+TOP=../..
+include $(TOP)/config/CONFIG_APP
+
+TARGETS = CONFIG_APP_INCLUDE
+
+include $(TOP)/config/RULES.Host
+
+ifeq ($(wildcard $(TOP)/config/RELEASE.$(HOST_ARCH)),$(TOP)/config/RELEASE.$(HOST_ARCH))
+CONFIG_APP_INCLUDE: $(TOP)/config/RELEASE.$(HOST_ARCH)
+endif
+
+CONFIG_APP_INCLUDE: $(TOP)/config/RELEASE $(TOP)/config/CONFIG_APP
+	$(RM) $@
+	@$(PERL) $(TOP)/config/makeConfigAppInclude.pl $(T_A) $@ $(TOP)
+
diff --git a/src/makeBaseApp/top/config/Makefile.Vx b/src/makeBaseApp/top/config/Makefile.Vx
new file mode 100644
index 000000000..ff8442d47
--- /dev/null
+++ b/src/makeBaseApp/top/config/Makefile.Vx
@@ -0,0 +1,19 @@
+#
+# $Id$
+#
+
+TOP=../..
+include $(TOP)/config/CONFIG_APP
+
+TARGETS = CONFIG_APP_INCLUDE
+
+include $(TOP)/config/RULES.Vx
+
+ifeq ($(wildcard $(TOP)/config/RELEASE.$(HOST_ARCH)),$(TOP)/config/RELEASE.$(HOST_ARCH))
+CONFIG_APP_INCLUDE: $(TOP)/config/RELEASE.$(HOST_ARCH)
+endif
+
+CONFIG_APP_INCLUDE: $(TOP)/config/RELEASE $(TOP)/config/CONFIG_APP
+	$(RM) $@
+	@$(PERL) $(TOP)/config/makeConfigAppInclude.pl $(T_A) $@ $(TOP)
+
diff --git a/src/makeBaseApp/top/config/makeConfigAppInclude.pl b/src/makeBaseApp/top/config/makeConfigAppInclude.pl
new file mode 100644
index 000000000..43bfc58df
--- /dev/null
+++ b/src/makeBaseApp/top/config/makeConfigAppInclude.pl
@@ -0,0 +1,63 @@
+# $Id$ 
+
+eval 'exec perl -S $0 ${1+"$@"}'  # -*- Mode: perl -*-
+    if $running_under_some_shell; # makeIocCdCommands.pl
+
+use Cwd;
+
+$arch = $ARGV[0];
+$outfile = $ARGV[1];
+$top = $ARGV[2];
+
+unlink("${outfile}");
+open(OUT,">${outfile}") or die "$! opening ${outfile}";
+print OUT "#Do not modify thie file.\n";
+print OUT "#This file is created during the build.\n";
+
+@files =();
+push(@files,"$top/config/RELEASE");
+push(@files,"$top/config/RELEASE.${arch}");
+foreach $file (@files) {
+  if (-r "$file") {
+    open(IN, "$file") or die "Cannot open $file\n";
+    while ($line = <IN>) {
+        next if ( $line =~ /\s*#/ );
+	chomp($line);
+        $_ = $line;
+        #the following looks for
+        # prefix = $(macro)post
+        ($prefix,$macro,$post) = /(.*)\s*=\s*\$\((.*)\)(.*)/;
+        if ($macro eq "") { # true if no macro is present
+            # the following looks for
+            # prefix = post
+            ($prefix,$post) = /(.*)\s*=\s*(.*)/;
+        } else {
+            $base = $applications{$macro};
+            if ($base eq "") {
+                #print "error: $macro was not previously defined\n";
+            } else {
+                $post = $base . $post;
+            }
+        }
+        $applications{$prefix} = $post;
+        if ( -d "$post") { #check that directory exists
+            print OUT "\n";
+            if ( -d "$post/bin/$arch") { #check that directory exists
+                print OUT "${prefix}_BIN = $post/bin/${arch}\n";
+            }
+            if ( -d "$post/lib/$arch") { #check that directory exists
+                print OUT "${prefix}_LIB = $post/lib/${arch}\n";
+            }
+            if ( -d "$post/include") { #check that directory exists
+                print OUT "USR_INCLUDES += -I$post/include\n";
+            }
+            if ( -d "$post/dbd") { #check that directory exists
+                print OUT "USER_DBDFLAGS += -I$post/dbd\n";
+            }
+        }
+    }
+    close IN;
+  }
+}
+close OUT;
+
diff --git a/src/makeBaseApp/top/exampleApp/src/Makefile.Host b/src/makeBaseApp/top/exampleApp/src/Makefile.Host
index b0d8a23b5..3842c64b1 100644
--- a/src/makeBaseApp/top/exampleApp/src/Makefile.Host
+++ b/src/makeBaseApp/top/exampleApp/src/Makefile.Host
@@ -4,7 +4,7 @@ include $(TOP)/config/CONFIG_APP
 #----------------------------------------
 #  ADD MACRO DEFINITIONS AFTER THIS LINE
 
-USER_DBDFLAGS += -I .. -I $(EPICS_BASE)/dbd
+#USER_DBDFLAGS += 
 RECTYPES += xxxRecord.h
 DBDEXPAND = exampleInclude.dbd
 DBDNAME = exampleApp.dbd