diff --git a/SConstruct b/SConstruct
index 4c8f52889b7..b349f4e4166 100644
--- a/SConstruct
+++ b/SConstruct
@@ -789,10 +789,7 @@ def doConfigure(myenv):
     if solaris or conf.CheckDeclaration('clock_gettime', includes='#include <time.h>'):
         conf.CheckLib('rt')
 
-    if freebsd and conf.CheckCXXHeader( "unwind.h" ):
-        myenv.Append( CPPDEFINES=[ "MONGO_HAVE_UNWIND_BACKTRACE" ] )
-
-    elif (conf.CheckCXXHeader( "execinfo.h" ) and
+    if (conf.CheckCXXHeader( "execinfo.h" ) and
         conf.CheckDeclaration('backtrace', includes='#include <execinfo.h>') and
         conf.CheckDeclaration('backtrace_symbols', includes='#include <execinfo.h>')):
 
@@ -811,11 +808,9 @@ def doConfigure(myenv):
         if not conf.CheckLib( v8_lib_choices ):
             Exit(1)
 
-    # requires ports devel/libexecinfo or devel/libunwind to be installed
+    # requires ports devel/libexecinfo to be installed
     if freebsd or openbsd:
-        # CheckLib actually sets the -l argument, so check in the
-        # order of precedence.
-        if not (conf.CheckLib("unwind") or conf.CheckLib("execinfo")):
+        if not conf.CheckLib("execinfo"):
             Exit(1)
 
     # 'tcmalloc' needs to be the last library linked. Please, add new libraries before this 
diff --git a/src/mongo/util/stacktrace.cpp b/src/mongo/util/stacktrace.cpp
index 37aececd958..4e4687217d5 100644
--- a/src/mongo/util/stacktrace.cpp
+++ b/src/mongo/util/stacktrace.cpp
@@ -34,53 +34,6 @@ namespace mongo {
     }
 }
 
-#elif MONGO_HAVE_UNWIND_BACKTRACE
-
-// This makes libunwind only work for within the
-// current process, but that's what we want anyway.
-#define UNW_LOCAL_ONLY
-
-#include <libunwind.h>
-
-namespace mongo {
-    static const int maxBackTraceFrames = 20;
-
-    void printStackTrace( std::ostream &os ) {
-        unw_context_t stack;
-        unw_cursor_t cursor;
-
-        int status = unw_getcontext(&stack);
-        if (status != 0) {
-            os << "unw_getcontext failed: " << status << std::endl;
-            return;
-        }
-        status = unw_init_local(&cursor, &stack);
-        if (status != 0) {
-            os << "unw_init_local failed: " << status << std::endl;
-            return;
-        }
-        for ( int depth = 0; (depth < maxBackTraceFrames && unw_step(&cursor) != 0); ++depth ) {
-            unw_word_t  offset;
-            unw_word_t  pc;
-            char        fname[128];
-
-            status = unw_get_reg(&cursor, UNW_REG_IP,  &pc);
-            if (status != 0) {
-                os << "unw_get_reg failed: " << status << std::endl;
-                return;
-            }
-
-            fname[0] = '\0';
-            status = unw_get_proc_name(&cursor, fname, sizeof(fname), &offset);
-            if (status != 0) {
-                os << "unw_get_proc_name failed: " << status << std::endl;
-                return;
-            }
-            os << fname << "+0x" << offset << " [0x" << std::hex << pc << std::dec << "]" << std::endl;
-        }
-    }
-}
-
 #else
 
 namespace mongo {