Merge https://github.com/yasm/yasm/commit/2bd66514b6b100887c19d8598da38347b3cff40e

tools/re2c/code.c

 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
 #include "tools/re2c/substr.h"
 #include "tools/re2c/globals.h"
 #include "tools/re2c/dfa.h"
 #include "tools/re2c/parse.h"
 
 static void useLabel(size_t value) {
     while (value >= vUsedLabelAlloc) {
@@ skipping 826 matching lines @@
     start_label = label;
 
     Action_new_Enter(d->head, label++);
 
     for(s = d->head; s; s = s->next)
         s->label = label++;
 
     nOrgOline = oline;
     maxFillIndexes = vFillIndexes;
     orgVFillIndexes = vFillIndexes;
-    tmpo = fopen("re2c.tmp", "wt");
+    tmpo = tmpfile();
     for(s = d->head; s; s = s->next){
         int readCh = 0;
         State_emit(s, tmpo, &readCh);
         Go_genGoto(&s->go, tmpo, s, s->next, &readCh);
     }
     fclose(tmpo);
-    remove("re2c.tmp");
     maxFillIndexes = vFillIndexes;
     vFillIndexes = orgVFillIndexes;
     oline = nOrgOline;
 
     fputs("\n", o);
     oline++;
     if (!iFlag)
         fprintf(o, "#line %u \"%s\"\n", oline++, outputFileName);
 
     if (!hasFillLabels) {
@@ skipping 37 matching lines @@
     if (bitmap_brace) {
         fputs("}\n", o);
         oline++;
     }
 
     BitMap_first = NULL;
 
     free(saves);
     free(rules);
 }