add subpackage with static library

package/eglibc/Config.in.manual

@@ -7,6 +7,14 @@ config ADK_PACKAGE_EGLIBC
 	help
 	  embedded GNU C library.
 
+config ADK_PACKAGE_EGLIBC_STATIC
+	prompt "eglibc-static........ C library (static version)"
+	tristate
+	default n
+	depends on ADK_TARGET_LIB_EGLIBC
+	help
+	  embedded GNU C library (static version).
+
 config ADK_PACKAGE_EGLIBC_DEV
 	prompt "eglibc-dev........... C library development files"
 	tristate

package/eglibc/Makefile

@@ -7,7 +7,7 @@ include $(TOPDIR)/toolchain/eglibc/Makefile.inc
 PKG_DESCR:=		embedded GNU C library
 PKG_SECTION:=		base
 PKG_OPTS:=		noremove
-PKG_SUBPKGS:=		EGLIBC EGLIBC_DEV
+PKG_SUBPKGS:=		EGLIBC EGLIBC_DEV EGLIBC_STATIC
 
 NO_DISTFILES:=		1
 
@@ -15,6 +15,7 @@ include $(TOPDIR)/mk/package.mk
 
 $(eval $(call PKG_template,EGLIBC,$(PKG_NAME),$(PKG_VERSION)-${PKG_RELEASE},${PKG_DEPENDS},${PKG_DESCR},${PKG_SECTION},${PKG_OPTS}))
 $(eval $(call PKG_template,EGLIBC_DEV,$(PKG_NAME)-dev,$(PKG_VERSION)-${PKG_RELEASE},${PKG_DEPENDS},${PKG_DESCR},${PKG_SECTION},${PKG_OPTS}))
+$(eval $(call PKG_template,EGLIBC_STATIC,$(PKG_NAME)-static,$(PKG_VERSION)-${PKG_RELEASE},${PKG_DEPENDS},${PKG_DESCR},${PKG_SECTION},${PKG_OPTS}))
 
 CONFIG_STYLE:=		manual
 BUILD_STYLE:=		manual
@@ -82,6 +83,10 @@ endif
 	${INSTALL_DATA} ${STAGING_TARGET_DIR}/etc/nscd.conf ${IDIR_EGLIBC}/etc
 	${INSTALL_DATA} ${STAGING_TARGET_DIR}/etc/nsswitch.conf ${IDIR_EGLIBC}/etc
 
+eglibc-static-install:
+	${INSTALL_DIR} $(IDIR_EGLIBC_STATIC)/usr/lib
+	$(CP) $(STAGING_TARGET_DIR)/usr/lib/libc.a $(IDIR_EGLIBC_STATIC)/usr/lib
+
 eglibc-dev-install:
 	${INSTALL_DIR} $(IDIR_EGLIBC_DEV)/lib $(IDIR_EGLIBC_DEV)/usr/lib
 	# install linker script