fixed various issues for windows builds

sigtool/sigtool.c

@@ -2321,7 +2321,7 @@ static int decodehex(const char *hexsig)
 	if (clen) {
 	    cflags = cli_calloc(clen+1, sizeof(char));
 	    if (!cflags) {
-		cli_errmsg("!cannot allocate memory for compile flags\n");
+		mprintf("!cannot allocate memory for compile flags\n");
 		return -1;
 	    }
 	    strncpy(cflags, hexsig+tlen+rlen+2, clen);

win32/libclamav.def

@@ -166,6 +166,8 @@ EXPORTS cli_checkfp_pe @44369 NONAME
 EXPORTS cli_bytefunc_describe @44370 NONAME
 EXPORTS cli_bytetype_describe @44371 NONAME
 EXPORTS cli_bytevalue_describe @44372 NONAME
+EXPORTS cli_pcre_freeoff @44373 NONAME
+EXPORTS cli_pcre_recaloff @44374 NONAME
 
 ; compatibility layer, tommath, zlib
 EXPORTS w32_srand @44269 NONAME