* When postgres.h does not define BYTE_ENDIAN pgcrypto

produces garbage.

I learned the hard way that

        #if UNDEFINED_1 == UNDEFINED_2
        #error "gcc is idiot"
        #endif

prints "gcc is idiot" ...

Affected are MD5/SHA1 in internal library, and also HMAC-MD5/HMAC-SHA1/
crypt-md5 which use them.  Blowfish is ok, also Rijndael on at
least x86.

Big thanks to Daniel Holtzman who send me a build log which
contained warning:

        md5.c:246: warning: `X' defined but not used

Yes, gcc is that helpful...

Please apply this.

--
marko

contrib/pgcrypto/px.h

@@ -26,12 +26,21 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $Id: px.h,v 1.5 2001/11/20 15:50:53 momjian Exp $
+ * $Id: px.h,v 1.6 2001/11/29 19:40:37 momjian Exp $
  */
 
 #ifndef __PX_H
 #define __PX_H
 
+#ifdef HAVE_ENDIAN_H
+#include <endian.h>
+#endif
+
+#ifndef BYTE_ORDER
+#error BYTE_ORDER must be defined as LITTLE_ENDIAN or BIG_ENDIAN
+#endif
+
+
 #if 1
 
 #define px_alloc(s) palloc(s)