Rename KSORT template to avoid collision with minimap2/map.c's

The name given to KSORT_INIT determines the names of the functions
generated to implement the heap. Distinct heaps in different translation
units need different names in order for the translation units to be
able to be (static-)linked together.

third-party/bam_sort.c

@@ -200,7 +200,7 @@ static inline int heap_lt(const heap1_t a, const heap1_t b)
     return a.idx > b.idx;
 }
 
-KSORT_INIT(heap, heap1_t, heap_lt)
+KSORT_INIT(bam_sort_heap, heap1_t, heap_lt)
 
 typedef struct merged_header
 {
@@ -1448,7 +1448,7 @@ int bam_merge_core2(int by_qname, char *sort_tag, const char *out, const char *m
     if (!(flag & MERGE_UNCOMP)) hts_set_threads(fpout, n_threads);
 
     // Begin the actual merge
-    ks_heapmake(heap, n, heap);
+    ks_heapmake(bam_sort_heap, n, heap);
     while (heap->pos != HEAP_EMPTY) {
         bam1_t *b = heap->entry.bam_record;
         if (flag & MERGE_RG) {
@@ -1481,7 +1481,7 @@ int bam_merge_core2(int by_qname, char *sort_tag, const char *out, const char *m
             print_error(cmd, "\"%s\" is truncated", fn[heap->i]);
             goto fail;
         }
-        ks_heapadjust(heap, 0, n, heap);
+        ks_heapadjust(bam_sort_heap, 0, n, heap);
     }
 
     // Clean up and close
@@ -1677,7 +1677,7 @@ static int bam_merge_simple(int by_qname, char *sort_tag, const char *out, const
     }
 
     // Now do the merge
-    ks_heapmake(heap, heap_size, heap);
+    ks_heapmake(bam_sort_heap, heap_size, heap);
     while (heap->pos != HEAP_EMPTY) {
         bam1_t *b = heap->entry.bam_record;
         if (sam_write1(fpout, hout, b) < 0) {
@@ -1690,7 +1690,7 @@ static int bam_merge_simple(int by_qname, char *sort_tag, const char *out, const
             print_error(cmd, "Error reading \"%s\" : %s", fn[heap->i], strerror(errno));
             goto fail;
         }
-        ks_heapadjust(heap, 0, heap_size, heap);
+        ks_heapadjust(bam_sort_heap, 0, heap_size, heap);
     }
     // Clean up and close
     for (i = 0; i < n; i++) {