Adjustments to get 'testfixture.exe' compiling with Tcl 8.6 when __st…

…dcall is enabled.

Makefile.msc

@@ -1994,7 +1994,7 @@ sqlite_tclDecls.h:
 	echo #  define SQLITE_TCLAPI >> sqlite_tclDecls.h
 	echo #endif >> sqlite_tclDecls.h
 	type "$(TCLINCDIR)\tclDecls.h" \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "^(EXTERN\s+?.*?\s+?)Tcl_" "\1 SQLITE_TCLAPI Tcl_" \
+		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "^(EXTERN(?: CONST\d+?)?\s+?[^\(]*?\s+?)Tcl_" "\1 SQLITE_TCLAPI Tcl_" \
 		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "^(EXTERN\s+?(?:void|VOID)\s+?)TclFreeObj" "\1 SQLITE_TCLAPI TclFreeObj" \
 		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "\(\*tcl_" "(SQLITE_TCLAPI *tcl_" \
 		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "\(\*tclFreeObj" "(SQLITE_TCLAPI *tclFreeObj" >> sqlite_tclDecls.h

src/tclsqlite.c

@@ -1151,7 +1151,7 @@ static char *local_getline(char *zPrompt, FILE *in){
 ** It is invoked after evaluating the script SCRIPT to commit or rollback
 ** the transaction or savepoint opened by the [transaction] command.
 */
-static int DbTransPostCmd(
+static int SQLITE_TCLAPI DbTransPostCmd(
   ClientData data[],                   /* data[0] is the Sqlite3Db* for $db */
   Tcl_Interp *interp,                  /* Tcl interpreter */
   int result                           /* Result of evaluating SCRIPT */
@@ -1698,7 +1698,7 @@ static int DbUseNre(void){
 **
 **   $db eval SQL ?ARRAYNAME? SCRIPT
 */
-static int DbEvalNextCmd(
+static int SQLITE_TCLAPI DbEvalNextCmd(
   ClientData data[],                   /* data[0] is the (DbEvalContext*) */
   Tcl_Interp *interp,                  /* Tcl interpreter */
   int result                           /* Result so far */
@@ -3256,7 +3256,7 @@ static int SQLITE_TCLAPI DbObjCmd(
 ** Adaptor that provides an objCmd interface to the NRE-enabled
 ** interface implementation.
 */
-static int DbObjCmdAdaptor(
+static int SQLITE_TCLAPI DbObjCmdAdaptor(
   void *cd,
   Tcl_Interp *interp,
   int objc,