diff -up djvulibre-3.5.25/configure~ djvulibre-3.5.25/configure

--- djvulibre-3.5.25/configure~	2012-05-08 05:56:53.000000000 +0300

+++ djvulibre-3.5.25/configure	2012-10-10 00:01:36.000000000 +0300

@@ -14733,6 +14733,7 @@ fi

    OPTS=

+if false; then

    saved_CXXFLAGS="$CXXFLAGS"

    saved_CFLAGS="$CFLAGS"

    CXXFLAGS=

@@ -14750,6 +14751,7 @@ fi

        *) CFLAGS="$CFLAGS $opt" ;;

      esac

    done

+fi

    if test x$ac_debug = xno ; then

      OPTS=-DNDEBUG

@@ -14770,6 +14772,7 @@ $as_echo "no" >&6; }

  fi

+if false; then

  opt="-O3"

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CXX accepts $opt" >&5

 $as_echo_n "checking if $CXX accepts $opt... " >&6; }

@@ -14801,6 +14804,7 @@ $as_echo "no" >&6; }

  fi

  fi

+fi

  opt="-Wno-non-virtual-dtor"

@@ -14819,6 +14823,7 @@ $as_echo "no" >&6; }

  fi

+if false; then

      cpu=`uname -m 2>/dev/null`

      test -z "$cpu" && cpu=${host_cpu}

      case "${host_cpu}" in

@@ -14860,6 +14865,7 @@ $as_echo "no" >&6; }

            ;;

       esac

+fi

    else

  opt="-Wall"