Use the NUM2_SWAP_THOUSANDS constant instead of 0x200.

src/libespeak-ng/numbers.c

 /*
  * Copyright (C) 2005 to 2015 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015-2016 Reece H. Dunn
+ * Copyright (C) 2015-2016, 2020 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 				LookupNum2(tr, hundreds/10, thousandplex, x, ph_digits);
 			}
 
-			if (tr->langopts.numbers2 & 0x200)
-				sprintf(ph_thousands, "%s%c%s%c", ph_10T, phonEND_WORD, ph_digits, phonEND_WORD); // say "thousands" before its number, not after
+			if (tr->langopts.numbers2 & NUM2_SWAP_THOUSANDS)
+				sprintf(ph_thousands, "%s%c%s%c", ph_10T, phonEND_WORD, ph_digits, phonEND_WORD);
 			else
 				sprintf(ph_thousands, "%s%c%s%c", ph_digits, phonEND_WORD, ph_10T, phonEND_WORD);
 
 	}
 
 	LookupNum3(tr, value, ph_buf, suppress_null, thousandplex, prev_thousands | ordinal | decimal_point);
-	if ((thousandplex > 0) && (tr->langopts.numbers2 & 0x200))
-		sprintf(ph_out, "%s%s%c%s%s", ph_zeros, ph_append, phonEND_WORD, ph_buf2, ph_buf); // say "thousands" before its number
+	if ((thousandplex > 0) && (tr->langopts.numbers2 & NUM2_SWAP_THOUSANDS))
+		sprintf(ph_out, "%s%s%c%s%s", ph_zeros, ph_append, phonEND_WORD, ph_buf2, ph_buf);
 	else
 		sprintf(ph_out, "%s%s%s%c%s", ph_zeros, ph_buf2, ph_buf, phonEND_WORD, ph_append);
 

src/libespeak-ng/tr_languages.c

 /*
  * Copyright (C) 2005 to 2015 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015-2016 Reece H. Dunn
+ * Copyright (C) 2015-2016, 2020 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 		tr->langopts.stress_rule = STRESSPOSN_2R;
 		tr->langopts.stress_flags = S_FINAL_DIM_ONLY | S_FINAL_NO_2 | 0x80000;
 		tr->langopts.numbers = NUM_OMIT_1_HUNDRED | NUM_HUNDRED_AND;
-		tr->langopts.numbers2 = 0x200; // say "thousands" before its number
+		tr->langopts.numbers2 = NUM2_SWAP_THOUSANDS;
 	}
 		break;
 	case L('p', 'l'): // Polish
 		tr->langopts.length_mods0 = tr->langopts.length_mods; // don't lengthen vowels in the last syllable
 		tr->langopts.param[LOPT_UNPRONOUNCABLE] = 1; // disable check for unpronouncable words.  Need to allow "bw'" prefix
 		tr->langopts.numbers = NUM_HUNDRED_AND | NUM_AND_UNITS | NUM_DFRACTION_2 | NUM_AND_HUNDRED;
-		tr->langopts.numbers2 = 0x200; // say "thousands" before its number
+		tr->langopts.numbers2 = NUM2_SWAP_THOUSANDS;
 	}
 		break;
 	case L('s', 'k'): // Slovak