--- np2/x11/configure.ac	2012/01/24 17:58:08	1.21
+++ np2/x11/configure.ac	2012/02/03 13:20:05	1.27
@@ -4,9 +4,9 @@ dnl
 
 dnl require autoconf 2.59
 AC_PREREQ(2.59)
-AC_REVISION($Revision: 1.21 $)
+AC_REVISION($Revision: 1.27 $)
 
-AC_INIT(Xnp2,0.83-20120123,nonakap@gmail.com,xnp2)
+AC_INIT(Xnp2,0.83-20120201,nonakap@gmail.com,xnp2)
 AM_INIT_AUTOMAKE([no-define no-dist no-installinfo subdir-objects])
 AC_CONFIG_SRCDIR([../np2ver.h])
 AC_CONFIG_HEADERS(config.h)
@@ -42,6 +42,7 @@ AC_STRUCT_TM
 AC_C_VOLATILE
 AC_CHECK_TYPES([ptrdiff_t])
 AC_SYS_LARGEFILE
+AC_C_CHAR_UNSIGNED
 
 dnl
 dnl Check GCC
@@ -148,6 +149,11 @@ if test x"$enable_xf86vidmode" = "xyes";
 fi
 
 dnl
+dnl Checks for nasm
+dnl
+AC_CHECK_PROGS(nasm,[nasm nasmw],no)
+
+dnl
 dnl Checks for IA-32 CPU emulation
 dnl
 AC_MSG_CHECKING([whether to use IA-32 emulation])