diff -urN nspr-4.8-orig/mozilla/nsprpub/config/config.mk nspr-4.8/mozilla/nsprpub/config/config.mk
--- nspr-4.8-orig/mozilla/nsprpub/config/config.mk	2009-09-12 00:43:47.678357452 -0500
+++ nspr-4.8/mozilla/nsprpub/config/config.mk	2009-09-12 00:44:19.383381757 -0500
@@ -162,3 +162,4 @@
 RELEASE_INCLUDE_DIR = $(RELEASE_DIR)/$(BUILD_NUMBER)/$(OBJDIR_NAME)/include
 RELEASE_BIN_DIR = $(RELEASE_DIR)/$(BUILD_NUMBER)/$(OBJDIR_NAME)/bin
 RELEASE_LIB_DIR = $(RELEASE_DIR)/$(BUILD_NUMBER)/$(OBJDIR_NAME)/lib
+RELEASE_PC_DIR = $(RELEASE_LIB_DIR)/pkgconfig
diff -urN nspr-4.8-orig/mozilla/nsprpub/config/Makefile.in nspr-4.8/mozilla/nsprpub/config/Makefile.in
--- nspr-4.8-orig/mozilla/nsprpub/config/Makefile.in	2009-09-12 00:43:47.678357452 -0500
+++ nspr-4.8/mozilla/nsprpub/config/Makefile.in	2009-09-12 00:44:19.384379661 -0500
@@ -52,9 +52,10 @@
 
 # autoconf.mk must be deleted last (from the top-level directory)
 # because it is included by every makefile.
-DIST_GARBAGE	= nsprincl.mk nsprincl.sh nspr-config
+DIST_GARBAGE	= nsprincl.mk nsprincl.sh nspr-config nspr.pc
 
 RELEASE_BINS	= nspr-config
+RELEASE_PC	= nspr.pc
 
 include $(topsrcdir)/config/config.mk
 
diff -urN nspr-4.8-orig/mozilla/nsprpub/config/nspr-config.in nspr-4.8/mozilla/nsprpub/config/nspr-config.in
--- nspr-4.8-orig/mozilla/nsprpub/config/nspr-config.in	2009-09-12 00:43:47.677356194 -0500
+++ nspr-4.8/mozilla/nsprpub/config/nspr-config.in	2009-09-12 00:45:53.723359547 -0500
@@ -92,13 +92,13 @@
 
 # Set variables that may be dependent upon other variables
 if test -z "$exec_prefix"; then
-    exec_prefix=@exec_prefix@
+    exec_prefix=`pkg-config --variable=exec_prefix nspr`
 fi
 if test -z "$includedir"; then
-    includedir=@includedir@
+    includedir=`pkg-config --variable=includedir nspr`
 fi
 if test -z "$libdir"; then
-    libdir=@libdir@
+    libdir=`pkg-config --variable=libdir nspr`
 fi
 
 if test "$echo_prefix" = "yes"; then
diff -urN nspr-4.8-orig/mozilla/nsprpub/config/nspr.pc.in nspr-4.8/mozilla/nsprpub/config/nspr.pc.in
--- nspr-4.8-orig/mozilla/nsprpub/config/nspr.pc.in	1969-12-31 18:00:00.000000000 -0600
+++ nspr-4.8/mozilla/nsprpub/config/nspr.pc.in	2009-09-12 00:44:19.410432811 -0500
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: NSPR
+Description: The Netscape Portable Runtime
+Version: @MOD_MAJOR_VERSION@.@MOD_MINOR_VERSION@.@MOD_PATCH_VERSION@
+Libs: -L${libdir} -lplds@MOD_MAJOR_VERSION@ -lplc@MOD_MAJOR_VERSION@ -lnspr@MOD_MAJOR_VERSION@ -lpthread -Wl,-R${libdir}
+Cflags: -I${includedir}
+
diff -urN nspr-4.8-orig/mozilla/nsprpub/config/rules.mk nspr-4.8/mozilla/nsprpub/config/rules.mk
--- nspr-4.8-orig/mozilla/nsprpub/config/rules.mk	2009-09-12 00:43:47.677356194 -0500
+++ nspr-4.8/mozilla/nsprpub/config/rules.mk	2009-09-12 00:44:19.435517111 -0500
@@ -211,7 +211,7 @@
 	rm -rf $(wildcard *.OBJ *.OBJD) dist $(ALL_TRASH) $(DIST_GARBAGE)
 	+$(LOOP_OVER_DIRS)
 
-install:: $(RELEASE_BINS) $(RELEASE_HEADERS) $(RELEASE_LIBS)
+install:: $(RELEASE_BINS) $(RELEASE_HEADERS) $(RELEASE_LIBS) $(RELEASE_PC)
 ifdef RELEASE_BINS
 	$(NSINSTALL) -t -m 0755 $(RELEASE_BINS) $(DESTDIR)$(bindir)
 endif
@@ -221,6 +221,9 @@
 ifdef RELEASE_LIBS
 	$(NSINSTALL) -t -m 0755 $(RELEASE_LIBS) $(DESTDIR)$(libdir)/$(lib_subdir)
 endif
+ifdef RELEASE_PC
+	$(NSINSTALL) -t -m 0644 $(RELEASE_PC) $(DESTDIR)$(libdir)/pkgconfig/
+endif
 	+$(LOOP_OVER_DIRS)
 
 release:: export
@@ -272,6 +275,23 @@
 	fi
 	cp $(RELEASE_HEADERS) $(RELEASE_HEADERS_DEST)
 endif
+ifdef RELEASE_PC
+	@echo "Copying pkg-config files to release directory"
+	@if test -z "$(BUILD_NUMBER)"; then \
+		echo "BUILD_NUMBER must be defined"; \
+		false; \
+	else \
+		true; \
+	fi
+	@if test ! -d $(RELEASE_PC_DEST); then \
+		rm -rf $(RELEASE_PC_DEST); \
+		$(NSINSTALL) -D $(RELEASE_PC_DEST);\
+	else \
+		true; \
+	fi
+	cp $(RELEASE_PC) $(RELEASE_PC_DEST)
+endif
+
 	+$(LOOP_OVER_DIRS)
 
 alltags:
diff -urN nspr-4.8-orig/mozilla/nsprpub/configure nspr-4.8/mozilla/nsprpub/configure
--- nspr-4.8-orig/mozilla/nsprpub/configure	2009-09-12 00:43:47.600359058 -0500
+++ nspr-4.8/mozilla/nsprpub/configure	2009-09-12 00:44:19.444380569 -0500
@@ -6037,6 +6037,7 @@
 config/nsprincl.mk
 config/nsprincl.sh
 config/nspr-config
+config/nspr.pc
 lib/Makefile 
 lib/ds/Makefile 
 lib/libc/Makefile 
diff -urN nspr-4.8-orig/mozilla/nsprpub/configure.in nspr-4.8/mozilla/nsprpub/configure.in
--- nspr-4.8-orig/mozilla/nsprpub/configure.in	2009-09-12 00:43:47.678357452 -0500
+++ nspr-4.8/mozilla/nsprpub/configure.in	2009-09-12 00:44:19.451396074 -0500
@@ -2871,6 +2871,7 @@
 config/nsprincl.mk
 config/nsprincl.sh
 config/nspr-config
+config/nspr.pc
 lib/Makefile 
 lib/ds/Makefile 
 lib/libc/Makefile