diff --git a/configure/CONFIG_FILE_TYPE b/configure/CONFIG_FILE_TYPE
index 0501e1949..c15f4b783 100644
--- a/configure/CONFIG_FILE_TYPE
+++ b/configure/CONFIG_FILE_TYPE
@@ -60,6 +60,9 @@ INSTALL_EDL = $(INSTALL_LOCATION)/edl
 FILE_TYPE += PERL_MODULES
 INSTALL_PERL_MODULES = $(INSTALL_LOCATION_LIB)/perl
 
+FILE_TYPE += PKGCONFIG
+INSTALL_PKGCONFIG = $(INSTALL_LOCATION_LIB)/pkgconfig
+
 INSTALLS_CFG = $(CFG:%= $(INSTALL_CFG)/%)
 DIRECTORY_TARGETS += $(foreach type, $(FILE_TYPE),$(INSTALL_$(type)))
 
diff --git a/configure/RULES_EXPAND b/configure/RULES_EXPAND
index c103fe95c..ca087aadc 100644
--- a/configure/RULES_EXPAND
+++ b/configure/RULES_EXPAND
@@ -1,6 +1,6 @@
 # <top>/configure/RULES_EXPAND
 
-ifeq ($(findstring Host,$(VALID_BUILDS)),Host)
+vpath %@ $(USR_VPATH) $(ALL_SRC_DIRS)
 
 # Default settings
 EXPAND_TOOL ?= $(PERL) $(TOOLS)/expandVars.pl
@@ -8,11 +8,12 @@ EXPAND_TOOL ?= $(PERL) $(TOOLS)/expandVars.pl
 EXPANDFLAGS += -t $(INSTALL_LOCATION) -a $(T_A)
 EXPANDFLAGS += $(addprefix -D ,$(EXPAND_VARS))
 
+# The names of files to be expanded must end with '@'
 EXPANDED = $(EXPAND:%@=%)
 
 buildInstall: $(EXPANDED)
 
-$(EXPANDED): %: ../%@
+$(EXPANDED): %: %@
 	$(ECHO) "Expanding $< to $@"
 	@$(RM) $@
 	@$(EXPAND_TOOL) $(EXPANDFLAGS) $($@_EXPANDFLAGS) $< $@
@@ -23,5 +24,3 @@ expand_clean:
 	@$(RM) $(EXPANDED)
 
 .PHONY : expand_clean
-
-endif
diff --git a/src/tools/Makefile b/src/tools/Makefile
index 496b0e4d1..cd364519d 100644
--- a/src/tools/Makefile
+++ b/src/tools/Makefile
@@ -51,5 +51,28 @@ PERL_SCRIPTS += dbdExpand.pl
 PERL_SCRIPTS += dbdToHtml.pl
 PERL_SCRIPTS += registerRecordDeviceDriver.pl
 
+# Build Package Config Files
+
+FINAL_LOCATION ?= $(shell $(PERL) $(TOOLS)/fullPathName.pl $(INSTALL_LOCATION))
+C_CFLAGS += $(filter-out -g,$(filter-out -O%,$(filter-out -W%,$(CPPFLAGS))))
+C_CFLAGS += $(filter-out -g,$(filter-out -O%,$(filter-out -W%,$(CFLAGS))))
+PKGVARS += FINAL_LOCATION OS_CLASS CMPLR_CLASS C_CFLAGS LDFLAGS LDLIBS
+PKGVARS += EPICS_VERSION EPICS_REVISION EPICS_MODIFICATION EPICS_PATCH_LEVEL
+PKGVARS += CC CCC CPP AR LD
+PKGVARS += EPICS_BASE_IOC_LIBS
+
+EXPANDFLAGS += $(foreach var,$(PKGVARS),-D$(var)="$(strip $($(var)))")
+PKGCONFIG += epics-base-$(T_A).pc
+ifeq ($(T_A),$(EPICS_HOST_ARCH))
+PKGCONFIG += epics-base.pc
+endif
+
+EXPAND += $(PKGCONFIG:%=%@)
+CLEANS += epics-base-$(T_A).pc@
+
 include $(TOP)/configure/RULES
  
+epics-base-$(T_A).pc@: ../epics-base-arch.pc@
+	@$(RM) $@
+	@$(CP) $< $@
+
diff --git a/src/tools/epics-base-arch.pc@ b/src/tools/epics-base-arch.pc@
new file mode 100644
index 000000000..8e30cd30e
--- /dev/null
+++ b/src/tools/epics-base-arch.pc@
@@ -0,0 +1,41 @@
+# standard variables
+prefix=@FINAL_LOCATION@
+exec_prefix=${prefix}
+bindir=${prefix}/bin/@ARCH@
+libdir=${prefix}/lib/@ARCH@
+
+# non-standard variables
+
+# EPICS Base install location
+FINAL_LOCATION=${prefix}
+ARCH=@ARCH@
+OS_CLASS=@OS_CLASS@
+CMPLR_CLASS=@CMPLR_CLASS@
+
+EPICS_BASE_IOC_LIBS=@EPICS_BASE_IOC_LIBS@
+
+# Directories
+
+includedir_osi=${prefix}/include
+includedir_osd=${prefix}/include/os/@OS_CLASS@
+includedir_comp=${prefix}/include/compiler/@CMPLR_CLASS@
+
+includedirs=${includedir_osi} ${includedir_osd} ${includedir_comp}
+
+dbddir=${prefix}/dbd
+dbdir=${prefix}/db
+
+# Tool chain
+
+CC=@CC@
+CXX=@CCC@
+CPP=@CPP@
+AR=@AR@
+LD=@LD@
+
+Name: epics-base-@ARCH@
+Version: @EPICS_VERSION@.@EPICS_REVISION@.@EPICS_MODIFICATION@.@EPICS_PATCH_LEVEL@
+Description: EPICS Base for @ARCH@
+Cflags: -I${includedir_osi} -I${includedir_osd} -I${includedir_comp} @C_CFLAGS@
+Libs: -L${libdir} @LDFLAGS@
+Libs.private: @LDLIBS@
diff --git a/src/tools/epics-base.pc@ b/src/tools/epics-base.pc@
new file mode 100644
index 000000000..c1540666a
--- /dev/null
+++ b/src/tools/epics-base.pc@
@@ -0,0 +1,29 @@
+# standard variables
+prefix=@FINAL_LOCATION@
+exec_prefix=${prefix}
+bindir=${prefix}/bin/@ARCH@
+libdir=${prefix}/lib/@ARCH@
+
+# non-standard variables
+
+# EPICS Base install location
+FINAL_LOCATION=${prefix}
+ARCH=@ARCH@
+OS_CLASS=@OS_CLASS@
+CMPLR_CLASS=@CMPLR_CLASS@
+
+# Directories
+
+includedir_osi=${prefix}/include
+includedir_osd=${prefix}/include/os/@OS_CLASS@
+includedir_comp=${prefix}/include/compiler/@CMPLR_CLASS@
+
+includedirs=${includedir_osi} ${includedir_osd} ${includedir_comp}
+
+dbddir=${prefix}/dbd
+dbdir=${prefix}/db
+
+Name: epics-base
+Version: @EPICS_VERSION@.@EPICS_REVISION@.@EPICS_MODIFICATION@.@EPICS_PATCH_LEVEL@
+Description: EPICS Base for the host arch
+Requires: epics-base-@ARCH@ = @EPICS_VERSION@.@EPICS_REVISION@.@EPICS_MODIFICATION@.@EPICS_PATCH_LEVEL@
diff --git a/src/tools/expandVars.pl b/src/tools/expandVars.pl
index 5015fe07a..76e35e259 100644
--- a/src/tools/expandVars.pl
+++ b/src/tools/expandVars.pl
@@ -49,9 +49,9 @@ expandRelease(\%vars);
 $vars{'ARCH'} = $opt_a if $opt_a;
 
 while ($_ = shift @opt_D) {
-    my ($var, $val) = split /=/;
-    $vars{$var} = $val;
-    print "$var = $val\n" if $opt_d;
+    m/^ (\w+) \s* = \s* (.*) $/x;
+    $vars{$1} = $2;
+    print "$1 = $2\n" if $opt_d;
 }
 
 # Do it!