Fix the build for AIX and other systems where "char" is unsigned by default. (CVS 4699)

FossilOrigin-Name: 47672af0c658573c6b305d224c6901058b8c0e00

manifest

@@ -1,5 +1,5 @@
-C Continued\swork\stoward\sconverting\sto\sa\sregister-based\sVM.\s(CVS\s4698)
-D 2008-01-09T02:15:39
+C Fix\sthe\sbuild\sfor\sAIX\sand\sother\ssystems\swhere\s"char"\sis\sunsigned\sby\sdefault.\s(CVS\s4699)
+D 2008-01-09T18:31:45
 F Makefile.arm-wince-mingw32ce-gcc ac5f7b2cef0cd850d6f755ba6ee4ab961b1fadf7
 F Makefile.in 30789bf70614bad659351660d76b8e533f3340e9
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -169,7 +169,7 @@ F src/utf.c ef4b7d83bae533b76c3e1bf635b113fdad86a736
 F src/util.c 05f31144bbd3f1a24f4139ae029c42545cb72624
 F src/vacuum.c 3f34f278809bf3eb0b62ec46ff779e9c385b28f0
 F src/vdbe.c cf1f4de3b96226da2b53fd01b843d5bb0d58f723
-F src/vdbe.h c686e1b73011e74b764971b83c97069ece3c04cb
+F src/vdbe.h a9166e1601f5b74c20516a74182773a20baee43e
 F src/vdbeInt.h 31bd686595356284d5484592e2dc6e58025aa346
 F src/vdbeapi.c f14174843bf4be2c9afdf2ef48b61e7c3ac62d7c
 F src/vdbeaux.c 2f716ebde79aa5bd83231c61269000413d8710f0
@@ -605,7 +605,7 @@ F www/tclsqlite.tcl 8be95ee6dba05eabcd27a9d91331c803f2ce2130
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl 890248cf7b70e60c383b0e84d77d5132b3ead42b
 F www/whentouse.tcl fc46eae081251c3c181bd79c5faef8195d7991a5
-P 8862ce9ceefba4f5d1ffbd51d824c05f42a58c22
-R 0091ff2603f4efdcadacf8e9bc937331
+P 92deff07bba2089bbe011f44defb3a0ac1362d56
+R d2a91e2bbc73e1392892ecb0f6b599b2
 U drh
-Z 95c6f21519b46535c3e92448c74b125f
+Z ad96d49ec8605701787cc205558d1dd0

manifest.uuid

@@ -1 +1 @@
-92deff07bba2089bbe011f44defb3a0ac1362d56
+47672af0c658573c6b305d224c6901058b8c0e00

src/vdbe.h

@@ -15,7 +15,7 @@
 ** or VDBE.  The VDBE implements an abstract machine that runs a
 ** simple program to access and modify the underlying database.
 **
-** $Id: vdbe.h,v 1.123 2008/01/08 23:54:25 drh Exp $
+** $Id: vdbe.h,v 1.124 2008/01/09 18:31:45 drh Exp $
 */
 #ifndef _SQLITE_VDBE_H_
 #define _SQLITE_VDBE_H_
@@ -42,7 +42,7 @@ typedef struct Mem Mem;
 */
 struct VdbeOp {
   u8 opcode;          /* What operation to perform */
-  char p4type;        /* One of the P4_xxx constants for p4 */
+  signed char p4type; /* One of the P4_xxx constants for p4 */
   u8 flags;           /* Flags for internal use */
   u8 p5;              /* Fifth parameter is an unsigned character */
   int p1;             /* First operand */