pgcrypto BYTE_ENDIAN fix

* 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

Index: contrib/pgcrypto/blf.c
===================================================================
RCS file: /opt/cvs/pgsql/pgsql/contrib/pgcrypto/blf.c,v
retrieving revision 1.3
diff -u -r1.3 blf.c
--- contrib/pgcrypto/blf.c 5 Nov 2001 17:46:23 -0000 1.3
+++ contrib/pgcrypto/blf.c 29 Nov 2001 11:50:37 -0000
@@ -41,6 +41,8 @@
*/

#include <postgres.h>
+#include "px.h"
+
#include "blf.h"

#undef inline
Index: contrib/pgcrypto/crypt-blowfish.c
===================================================================
RCS file: /opt/cvs/pgsql/pgsql/contrib/pgcrypto/crypt-blowfish.c,v
retrieving revision 1.6
diff -u -r1.6 crypt-blowfish.c
--- contrib/pgcrypto/crypt-blowfish.c 5 Nov 2001 17:46:23 -0000 1.6
+++ contrib/pgcrypto/crypt-blowfish.c 29 Nov 2001 11:50:10 -0000
@@ -32,7 +32,9 @@

#include "postgres.h"

+#include "px.h"
#include "px-crypt.h"
+
#define __set_errno(v)

#ifndef __set_errno
Index: contrib/pgcrypto/crypt-des.c
===================================================================
RCS file: /opt/cvs/pgsql/pgsql/contrib/pgcrypto/crypt-des.c,v
retrieving revision 1.7
diff -u -r1.7 crypt-des.c
--- contrib/pgcrypto/crypt-des.c 20 Nov 2001 21:10:38 -0000 1.7
+++ contrib/pgcrypto/crypt-des.c 29 Nov 2001 11:40:16 -0000
@@ -60,6 +60,7 @@

#include "postgres.h"

+#include "px.h"
#include "px-crypt.h"

/* for ntohl/htonl */
Index: contrib/pgcrypto/crypt-gensalt.c
===================================================================
RCS file: /opt/cvs/pgsql/pgsql/contrib/pgcrypto/crypt-gensalt.c,v
retrieving revision 1.3
diff -u -r1.3 crypt-gensalt.c
--- contrib/pgcrypto/crypt-gensalt.c 25 Oct 2001 05:49:19 -0000 1.3
+++ contrib/pgcrypto/crypt-gensalt.c 29 Nov 2001 11:40:16 -0000
@@ -12,6 +12,7 @@

#include "postgres.h"

+#include "px.h"
#include "px-crypt.h"

#include <errno.h>
Index: contrib/pgcrypto/md5.c
===================================================================
RCS file: /opt/cvs/pgsql/pgsql/contrib/pgcrypto/md5.c,v
retrieving revision 1.8
diff -u -r1.8 md5.c
--- contrib/pgcrypto/md5.c 25 Oct 2001 05:49:19 -0000 1.8
+++ contrib/pgcrypto/md5.c 29 Nov 2001 11:40:53 -0000
@@ -31,6 +31,7 @@
*/

#include "postgres.h"
+#include "px.h"

#include "md5.h"

Index: contrib/pgcrypto/px.h
===================================================================
RCS file: /opt/cvs/pgsql/pgsql/contrib/pgcrypto/px.h,v
retrieving revision 1.5
diff -u -r1.5 px.h
--- contrib/pgcrypto/px.h 20 Nov 2001 15:50:53 -0000 1.5
+++ contrib/pgcrypto/px.h 29 Nov 2001 11:41:41 -0000
@@ -32,6 +32,15 @@
#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)
Index: contrib/pgcrypto/rijndael.c
===================================================================
RCS file: /opt/cvs/pgsql/pgsql/contrib/pgcrypto/rijndael.c,v
retrieving revision 1.7
diff -u -r1.7 rijndael.c
--- contrib/pgcrypto/rijndael.c 20 Nov 2001 15:50:53 -0000 1.7
+++ contrib/pgcrypto/rijndael.c 29 Nov 2001 11:49:13 -0000
@@ -39,6 +39,7 @@
*/

#include <postgres.h>
+#include "px.h"

#include "rijndael.h"

Index: contrib/pgcrypto/sha1.c
===================================================================
RCS file: /opt/cvs/pgsql/pgsql/contrib/pgcrypto/sha1.c,v
retrieving revision 1.10
diff -u -r1.10 sha1.c
--- contrib/pgcrypto/sha1.c 5 Nov 2001 17:46:23 -0000 1.10
+++ contrib/pgcrypto/sha1.c 29 Nov 2001 11:42:03 -0000
@@ -36,6 +36,7 @@
*/

#include "postgres.h"
+#include "px.h"

#include "sha1.h"