add libnsl back

package/eglibc/Makefile

@@ -75,7 +75,7 @@ ifeq ($(ADK_TOOLCHAIN_GCC_USE_SSP),y)
 	$(CP) $(STAGING_TARGET_DIR)/lib/libssp.so* $(IDIR_EGLIBC)/lib
 endif
 	$(CP) $(STAGING_TARGET_DIR)/lib/ld* $(IDIR_EGLIBC)/lib
-	-for file in libc libcrypt libdl libm libresolv librt libutil libnss_dns libnss_files; do \
+	-for file in libc libcrypt libdl libm libresolv librt libutil libnsl libnss_dns libnss_files; do \
 		$(CP) $(STAGING_TARGET_DIR)/lib/$$file.so* $(IDIR_EGLIBC)/lib; \
 		$(CP) $(STAGING_TARGET_DIR)/lib/$$file-$(PKG_VERSION).so $(IDIR_EGLIBC)/lib; \
 	done
@@ -103,7 +103,7 @@ ifeq ($(ADK_TARGET_ABI_N64),y)
 endif
 	${CP} ${STAGING_TARGET_DIR}/usr/lib/crt* ${IDIR_EGLIBC_DEV}/usr/lib
 	${CP} ${STAGING_TARGET_DIR}/usr/lib/libc_nonshared.a ${IDIR_EGLIBC_DEV}/usr/lib
-	-for file in libcrypt libdl libm libresolv librt libutil; do \
+	-for file in libcrypt libdl libm libresolv librt libutil libnsl; do \
 		cd $(IDIR_EGLIBC_DEV)/lib/; ln -sf $$file-$(PKG_VERSION).so $$file.so; \
 	done
 	# header package