readline: fix stripping on target

Libraries got installed read only, so strip failed.

[Peter: simplify chmod logic]
Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/readline/readline.mk

@@ -24,5 +24,13 @@ define READLINE_INSTALL_INPUTRC
 endef
 READLINE_POST_INSTALL_TARGET_HOOKS += READLINE_INSTALL_INPUTRC
 
+ifneq ($(BR2_STATIC_LIBS),y)
+# libraries get installed read only, so strip fails
+define READLINE_INSTALL_FIXUPS_SHARED
+	chmod +w $(addprefix $(TARGET_DIR)/usr/lib/,libhistory.so.* libreadline.so.*)
+endef
+READLINE_POST_INSTALL_TARGET_HOOKS += READLINE_INSTALL_FIXUPS_SHARED
+endif
+
 $(eval $(autotools-package))
 $(eval $(host-autotools-package))