add linker script, exit when not available

package/eglibc/Makefile

@@ -42,7 +42,7 @@ eglibc-static-install:
 eglibc-dev-install:
 	${INSTALL_DIR} $(IDIR_EGLIBC_DEV)/$(ADK_TARGET_LIBC_PATH) $(IDIR_EGLIBC_DEV)/usr/lib
 	# install linker script
-	-cp ./files/libc.so.$(CPU_ARCH) $(IDIR_EGLIBC_DEV)/usr/lib/libc.so
+	cp ./files/libc.so.$(CPU_ARCH) $(IDIR_EGLIBC_DEV)/usr/lib/libc.so
 ifeq ($(ADK_TARGET_ABI_O32),y)
 ifeq ($(ADK_big),y)
 	$(SED) "s#@@ELFTARGET@@#elf32-tradbigmips#" $(IDIR_EGLIBC_DEV)/usr/lib/libc.so

package/eglibc/files/libc.so.arm

@@ -0,0 +1,5 @@
+/* GNU ld script
+   Use the shared library, but some functions are only in
+   the static library, so try that secondarily.  */
+OUTPUT_FORMAT(elf32-littlearm)
+GROUP ( /lib/libc.so.6 /usr/lib/libc_nonshared.a  AS_NEEDED ( /lib/ld-linux.so.3 ) )