diff -urp elfutils-0.166.orig/src/nm.c elfutils-0.166/src/nm.c
--- elfutils-0.166.orig/src/nm.c	2016-03-31 04:47:17.000000000 -0400
+++ elfutils-0.166/src/nm.c	2017-01-09 20:19:03.020321708 -0500
@@ -33,7 +33,6 @@
 #include <libdw.h>
 #include <libintl.h>
 #include <locale.h>
-#include <obstack.h>
 #include <search.h>
 #include <stdbool.h>
 #include <stdio.h>
@@ -1242,10 +1241,7 @@ show_symbols (int fd, Ebl *ebl, GElf_Ehd
   size_t nentries = size / (entsize ?: 1);
 
 
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
-  struct obstack whereob;
-  obstack_init (&whereob);
+  char* whereob = NULL;
 
   /* Get a DWARF debugging descriptor.  It's no problem if this isn't
      possible.  We just won't print any line number information.  */
@@ -1405,12 +1401,10 @@ show_symbols (int fd, Ebl *ebl, GElf_Ehd
 			  const char *file = dwarf_linesrc (line, NULL, NULL);
 			  file = (file != NULL) ? basename (file) : "???";
 			  int n;
-			  n = obstack_printf (&whereob, "%s:%d%c", file,
-					      lineno, '\0');
-			  sym_mem[nentries_used].where
-			    = obstack_finish (&whereob);
+			  n = asprintf (&whereob, "%s:%d%c", file, lineno, '\0');
+			  sym_mem[nentries_used].where = whereob;
 
-			  /* The return value of obstack_print included the
+			  /* The return value of asprintf included the
 			     NUL byte, so subtract one.  */
 			  if (--n > (int) longest_where)
 			    longest_where = (size_t) n;
@@ -1433,13 +1427,13 @@ show_symbols (int fd, Ebl *ebl, GElf_Ehd
 	      if (found != NULL)
 		{
 		  /* We found the line.  */
-		  int n = obstack_printf (&whereob, "%s:%" PRIu64 "%c",
+		  int n = asprintf (&whereob, "%s:%" PRIu64 "%c",
 					  basename ((*found)->file),
 					  (*found)->lineno,
 					  '\0');
-		  sym_mem[nentries_used].where = obstack_finish (&whereob);
+		  sym_mem[nentries_used].where = whereob;
 
-		  /* The return value of obstack_print included the
+		  /* The return value of asprintf included the
 		     NUL byte, so subtract one.  */
 		  if (--n > (int) longest_where)
 		    longest_where = (size_t) n;
@@ -1491,8 +1485,6 @@ show_symbols (int fd, Ebl *ebl, GElf_Ehd
   if (nentries * sizeof (sym_mem[0]) >= MAX_STACK_ALLOC)
     free (sym_mem);
 
-  obstack_free (&whereob, NULL);
-
   if (dbg != NULL)
     {
       tdestroy (global_root, free);
Only in elfutils-0.166/src: nm.c~