libiconv-full: fix build with fortify source

Avoid redefining `realpath` to fix the following error:

    .../include/fortify/stdlib.h:36:13: error: 'realpath' undeclared here (not in a function)

Signed-off-by: Jo-Philipp Wich <[email protected]>

SVN-Revision: 46127

package/libs/libiconv-full/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2006-2009 OpenWrt.org
+# Copyright (C) 2006-2015 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libiconv-full
 PKG_VERSION:=1.11.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_MAINTAINER:=Jo-Philipp Wich <[email protected]>
 

package/libs/libiconv-full/patches/300-fortify-source-compat.patch

@@ -0,0 +1,23 @@
+--- a/m4/canonicalize.m4
++++ b/m4/canonicalize.m4
+@@ -11,8 +11,6 @@ AC_DEFUN([gl_CANONICALIZE],
+   AC_CHECK_FUNCS(canonicalize_file_name)
+   if test $ac_cv_func_canonicalize_file_name = no; then
+     AC_LIBOBJ(canonicalize)
+-    AC_DEFINE([realpath], [rpl_realpath],
+-      [Define to a replacement function name for realpath().])
+     gl_PREREQ_CANONICALIZE
+   fi
+ ])
+--- a/configure
++++ b/configure
+@@ -35532,9 +35532,6 @@ done
+   if test $ac_cv_func_canonicalize_file_name = no; then
+     SRCLIBOBJS="$SRCLIBOBJS canonicalize.$ac_objext"
+ 
+-cat >>confdefs.h <<\_ACEOF
+-#define realpath rpl_realpath
+-_ACEOF
+ 
+ 
+