Apparently, Windows headers define (at least) PARITY_NONE

Even when "lean and mean".  Rename enum.

src/syncterm/CHANGES

@@ -9,6 +9,7 @@ Fix crash when editing blank "extra" bbslist entry
 Support copy/paste in BBS list
 Show current list path, not default in File Locations
 Explicitly set serial port to 8N1
+Add support bit data bits, stop bits, and parity
 
 Version 1.2rc6
 --------------

src/syncterm/bbslist.c

@@ -822,7 +822,7 @@ read_item(str_list_t listfile, struct bbslist *entry, char *bbsname, int id, int
 	entry->stop_bits = iniGetUShortInt(section, NULL, "StopBits", 1);
 	if (entry->stop_bits < 1 || entry->stop_bits > 2)
 		entry->stop_bits = 1;
-	entry->parity = iniGetEnum(section, NULL, "Parity", parity_enum, PARITY_NONE);
+	entry->parity = iniGetEnum(section, NULL, "Parity", parity_enum, SYNCTERM_PARITY_NONE);
 
         /* Log Stuff */
 	iniGetSString(section, NULL, "LogFile", "", entry->logfile, sizeof(entry->logfile));

src/syncterm/bbslist.h

@@ -110,9 +110,9 @@ enum {
 };
 
 enum {
-	PARITY_NONE,
-	PARITY_EVEN,
-	PARITY_ODD,
+	SYNCTERM_PARITY_NONE,
+	SYNCTERM_PARITY_EVEN,
+	SYNCTERM_PARITY_ODD,
 };
 
 /* NOTE: changing this may require updating sort_order in bbslist.c */

src/syncterm/modem.c

@@ -164,7 +164,7 @@ modem_connect(struct bbslist *bbs)
 				return -1;
 			}
 		}
-		if (!comSetParity(com, bbs->parity != PARITY_NONE, bbs->parity == PARITY_ODD)) {
+		if (!comSetParity(com, bbs->parity != SYNCTERM_PARITY_NONE, bbs->parity == SYNCTERM_PARITY_ODD)) {
 			if (!bbs->hidepopups)
 				uifcmsg("Cannot Set Parity", "`Cannot Set Parity`\n\n"
 				    "Cannot open the specified serial device.\n");
@@ -209,7 +209,7 @@ modem_connect(struct bbslist *bbs)
 				return -1;
 			}
 		}
-		if (!comSetParity(com, bbs->parity != PARITY_NONE, bbs->parity == PARITY_ODD)) {
+		if (!comSetParity(com, bbs->parity != SYNCTERM_PARITY_NONE, bbs->parity == SYNCTERM_PARITY_ODD)) {
 			if (!bbs->hidepopups)
 				uifcmsg("Cannot Set Parity", "`Cannot Set Parity`\n\n"
 				    "Cannot open the specified serial device.\n");