Fixed bug #833

Fixed errors with older autoconf

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%404028

configure.in

@@ -36,6 +36,7 @@ LT_RELEASE=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION
 LT_CURRENT=`expr $SDL_MICRO_VERSION - $SDL_INTERFACE_AGE`
 LT_REVISION=$SDL_INTERFACE_AGE
 LT_AGE=`expr $SDL_BINARY_AGE - $SDL_INTERFACE_AGE`
+m4_pattern_allow([^LT_])
 
 AC_SUBST(LT_RELEASE)
 AC_SUBST(LT_CURRENT)
@@ -43,7 +44,7 @@ AC_SUBST(LT_REVISION)
 AC_SUBST(LT_AGE)
 
 dnl Detect the canonical build and host environments
-AC_CANONICAL_HOST
+dnl AC_CANONICAL_HOST
 AC_C_BIGENDIAN
 if test x$ac_cv_c_bigendian = xyes; then
     AC_DEFINE(SDL_BYTEORDER, 4321)