SBCL statistical profiler warns of undefined function - profiling

Question

SBCL 1.3.9 produces the following error when I attempt to run the statistical profiler. Is start-profiling not exported?
* (in-package :cl-user)
* (require :sb-sprof)
* (sb-sprof:with-profiling (:report :flat) (bnb::solve))
; in: SB-SPROF:WITH-PROFILING (:REPORT :FLAT)
; (SB-SPROF:START-PROFILING :MAX-DEPTH 4611686018427387903 :THREADS
; (LIST SB-THREAD:*CURRENT-THREAD*))
;
; caught STYLE-WARNING:
; undefined function: SB-SPROF:START-PROFILING
;
; compilation unit finished
; Undefined function:
; SB-SPROF:START-PROFILING
; caught 1 STYLE-WARNING condition
debugger invoked on a UNDEFINED-FUNCTION in thread
#<THREAD "main thread" RUNNING {100292C913}>:
The function SB-SPROF:START-PROFILING is undefined.
Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL.
restarts (invokable by number or by possibly-abbreviated name):
0: [ABORT] Exit debugger, returning to top level.

Answer 1

It seems a problem with your distribution. please update to the last SBCL wich is
The most recent version is SBCL 1.3.18, released May 30, 2017
But if you take a look at the sources in github
git log -S start-profiling --source --all
commit 63f714af62d0ccdb9d4a793ab0245b036c3d8531 refs/tags/sbcl_1_0
Author: Juho Snellman <jsnell#iki.fi>
Date: Fri Nov 17 02:15:47 2006 +0000
0.9.18.58:
Further SB-SPROF improvements.
* Allocation profiling on gencgc. When the profiler is running in
allocation profiling mode, the gc will signal profiler ticks
when new allocation regions are opened.
* Add :LOOP keyword argument to WITH-PROFILING, to allow specifying
whether the body should be evaluated repeatedly until the maximum
sample count is reached.
* Improve merging of code-components with multiple debug-funs,
better handling of multiple functions with the same name
* More documentation
* Also update the stepper documentation
commit 554397512eea9d6e30067c5edc2def42006a5327 refs/tags/sbcl_0_8_12
Author: Christophe Rhodes <csr21#cam.ac.uk>
Date: Mon Jun 21 11:33:35 2004 +0000
0.8.11.20:
Add SB-SPROF contrib
That funcion was added a lot time ago, so please try the latest code and follow the manual
also if you inspect the code it has this mark
#-win32
So if you are using windows 32 bits this should not work