generate pkg-config file for node and install it during make install

Upstream-Status: Pending

Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
---
--- a/Makefile
+++ b/Makefile
@@ -88,12 +88,23 @@
 config.gypi: configure
 	$(error Missing or stale $@, please run ./$<)
 
-install: all
+install: all install-pkgconfig
 	$(PYTHON) tools/install.py $@ '$(DESTDIR)' '$(PREFIX)'
 
 uninstall:
 	$(PYTHON) tools/install.py $@ '$(DESTDIR)' '$(PREFIX)'
 
+install-pkgconfig:
+	if [ -n "$(LIBDIR)" ]; then \
+		LIBDIR="$(LIBDIR)"; \
+	else \
+		case $(ARCH) in \
+			*64) LIBDIR=$(PREFIX)/lib64;; \
+			*) LIBDIR=$(PREFIX)/lib;; \
+		esac; \
+	fi; \
+	mkdir -p $(DESTDIR)$$LIBDIR/pkgconfig && cp node.pc $(DESTDIR)$$LIBDIR/pkgconfig
+
 clean:
 	$(RM) -r out/Makefile $(NODE_EXE) $(NODE_G_EXE) out/$(BUILDTYPE)/$(NODE_EXE) \
                 out/$(BUILDTYPE)/node.exp