Little-endian fix for 16bit TIFF

and Use same endian-detect as other plug-ins for PCX

ChangeLog

@@ -1,3 +1,8 @@
+2000-11-19  Nick Lamb  <njl195@zepler.org.uk>
+
+	* plug-ins/common/tiff.c: Little-endian fix for 16bit TIFF
+	* plug-ins/common/pcx.c: Use same endian-detect as other plug-ins
+
 2000-11-19  Michael Natterer  <mitch@gimp.org>
 
 	* libgimp/gimpenv.c: a missing newline confused gtk-doc. Minor doc fixes.

plug-ins/common/pcx.c

@@ -37,7 +37,7 @@ static void run   (gchar   *name,
 		   gint    *nreturn_vals,
 		   GimpParam **return_vals);
 
-#if defined(_BIG_ENDIAN) || defined(sparc) || defined (__sgi)
+#if G_BYTE_ORDER == G_BIG_ENDIAN
 #define qtohl(x) \
         ((unsigned long int)((((unsigned long int)(x) & 0x000000ffU) << 24) | \
                              (((unsigned long int)(x) & 0x0000ff00U) <<  8) | \

plug-ins/common/tiff.c

@@ -864,6 +864,10 @@ read_16bit (guchar       *source,
                           startcol, startrow, cols, rows, TRUE, FALSE);
   }
 
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+  source++; /* offset source once, to look at the high byte */
+#endif
+
   for (row = 0; row < rows; ++row) {
     dest= channel[0].pixels + row * cols * channel[0].drawable->bpp;