--- configure.orig	2011-07-01 19:36:41.000000000 -0300
+++ configure	2011-07-27 09:10:11.000000000 -0300
@@ -7544,7 +7544,7 @@
 
 # On IRIX 5.3, sys/types and inttypes.h are conflicting.
 for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-		  inttypes.h stdint.h unistd.h
+		  inttypes.h stdint.h unistd.h stdarg.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default