Add ability to use __UNUSED__ in code.

SVN revision: 56369

Makefile.am

@@ -1,7 +1,19 @@
 ACLOCAL_AMFLAGS = -I m4
+
 MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
 		       config.sub configure depcomp install-sh ltmain.sh \
-		       missing module.desktop config.rpath mkinstalldirs
+		       missing module.desktop config.rpath mkinstalldirs \
+                       INSTALL ABOUT-NLS* m4/libtool.m4 m4/lt~obsolete.m4 \
+                       m4/ltoptions.m4 m4/ltsugar.m4 m4/ltversion.m4 \
+                       m4/codeset.m4 m4/gettext.m4 m4/glibc21.m4 m4/iconv.m4 \
+                       m4/intdiv0.m4 m4/inttypes_h.m4 m4/inttypes.m4 \
+                       m4/inttypes-pri.m4 m4/isc-posix.m4 m4/lcmessage.m4 \
+                       m4/lib-ld.m4 m4/lib-link.m4 m4/lib-prefix.m4 \
+                       m4/nls.m4 m4/po.m4 m4/progtest.m4 m4/stdint_h.m4 \
+                       m4/uintmax_t.m4 m4/ulonglong.m4 m4/intmax.m4 \
+                       m4/longdouble.m4 m4/longlong.m4 m4/printf-posix.m4 \
+                       m4/signed.m4 m4/size_max.m4 m4/wchar_t.m4 \
+                       m4/wint_t.m4 m4/xsize.m4
 
 SUBDIRS = src po
 

configure.ac

@@ -20,6 +20,7 @@ AC_HEADER_STDC
 AC_HEADER_TIME
 AC_CHECK_HEADERS(sys/time.h locale.h)
 AC_C_CONST
+AC_C___ATTRIBUTE__
 
 define([AC_LIBTOOL_LANG_CXX_CONFIG], [:])dnl
 define([AC_LIBTOOL_LANG_F77_CONFIG], [:])dnl