--- Makefile.orgi 2013-02-05 23:13:54.375834807 +0800
--- Makefile.orig 2004-07-19 00:19:55.000000000 -0500
+++ Makefile 2013-02-05 23:14:13.106833334 +0800
+++ Makefile 2014-06-28 12:12:21.620114627 -0500
@@ -34,6 +34,7 @@
@@ -34,10 +34,15 @@
SHLIB_MINOR= 0
NOPROFILE= yes
DPADD= ${LIBM}
LDADD= -lm
+.if (${MACHINE_CPUARCH} == "amd64")
+CFLAGS+= -fno-omit-frame-pointer
+.endif
+
#WARNS?= 4
#stacktraverse.c: gen.py