Trivial configure.ac problem in GNUnet 0.6.4a

On most operating systems, test(1) doesn't support "=="; you need "=".  Diff
attached.

--- configure.ac.orig	2004-09-20 00:35:56.000000000 -0400
+++ configure.ac
@@ -173,18 +173,18 @@ AC_ARG_WITH(crypto,
      [AC_CHECK_HEADERS([openssl/rsa.h openssl/blowfish.h],
       openssl=1)])])

-if test $openssl == 0
+if test $openssl = 0
 then
-if test $gcrypt == 0
+if test $gcrypt = 0
 then
   AC_MSG_ERROR([GNUnet needs libgcrypt or OpenSSL])
 fi
 fi

 # Given the choice, the preference is libgcrypt
-if test $openssl == 1
+if test $openssl = 1
 then
-if test $gcrypt == 1
+if test $gcrypt = 1
 then
 openssl=0
 fi
@@ -497,7 +497,7 @@ then
 fi

 guile=0
-if test "$enable_guile" == "yes"
+if test "$enable_guile" = "yes"
 then
     AC_PATH_PROG([guile_available], [guile])
     if test -z "$guile_available"
@@ -617,12 +617,12 @@ fi

 AC_MSG_NOTICE([NOTICE: Database support is set to GDBM: $gdb, TDB: $tdb, BDB: $bdb, MySQL: $mysql])

-if test $openssl == 1
+if test $openssl = 1
 then
   AC_MSG_NOTICE([NOTICE: Using OpenSSL for cryptographic primitives.])
 fi

-if test $gcrypt == 1
+if test $gcrypt = 1
 then
   AC_MSG_NOTICE([NOTICE: Using libgcrypt for cryptographic primitives.])
 fi

-- 
-- Todd Vierling <[email protected]> <[email protected]>