diff --git a/legacy/eina/configure.in b/legacy/eina/configure.in
index f6d1ab5df3..255276213b 100644
--- a/legacy/eina/configure.in
+++ b/legacy/eina/configure.in
@@ -11,6 +11,8 @@ AC_ISC_POSIX
 AM_INIT_AUTOMAKE(1.6 dist-bzip2)
 AM_CONFIG_HEADER(config.h)
 
+AC_C___ATTRIBUTE__
+
 AC_LIBTOOL_WIN32_DLL
 define([AC_LIBTOOL_LANG_CXX_CONFIG], [:])dnl
 define([AC_LIBTOOL_LANG_F77_CONFIG], [:])dnl
@@ -151,6 +153,7 @@ src/include/Makefile
 src/lib/Makefile
 src/modules/Makefile
 src/modules/mm_policies/Makefile
+src/modules/chained_pool/Makefile
 ])
 
 AC_OUTPUT
diff --git a/legacy/eina/m4/ac_attribute.m4 b/legacy/eina/m4/ac_attribute.m4
new file mode 100644
index 0000000000..46c1a42291
--- /dev/null
+++ b/legacy/eina/m4/ac_attribute.m4
@@ -0,0 +1,14 @@
+
+AC_DEFUN([AC_C___ATTRIBUTE__],
+[
+  AC_MSG_CHECKING(for __attribute__)
+  AC_CACHE_VAL(ac_cv___attribute__, [
+  AC_TRY_COMPILE([#include <stdlib.h>],
+  [int func(int x); int foo(int x __attribute__ ((unused))) { exit(1); }],
+  ac_cv___attribute__=yes, ac_cv___attribute__=no)])
+  if test "$ac_cv___attribute__" = "yes"; then
+    AC_DEFINE(HAVE___ATTRIBUTE__, 1, [Define to 1 if your compiler has __attribute__])
+  fi
+  AC_MSG_RESULT($ac_cv___attribute__)
+])
+
diff --git a/legacy/eina/src/include/eina_types.h b/legacy/eina/src/include/eina_types.h
index 9dc7164e11..4e76dcaa46 100644
--- a/legacy/eina/src/include/eina_types.h
+++ b/legacy/eina/src/include/eina_types.h
@@ -27,6 +27,12 @@
 # endif
 #endif
 
+#if HAVE___ATTRIBUTE__
+# define __UNUSED__ __attribute__((unused))
+#else
+# define __UNUSED__
+#endif
+
 /* remove this TRUE/FALSE redifinitions */
 
 #ifndef TRUE