Someone broke jprof. This fixes it. This (obviously) should

not break anything, but if it does, give me a call at 919.859.3885.
a,r=leaf

config/autoconf.mk.in

@@ -52,6 +52,7 @@ MOZ_LOG_REFCNT	= @MOZ_LOG_REFCNT@
 MOZILLA_GPROF	= @MOZILLA_GPROF@
 MOZ_PERF_METRICS = @MOZ_PERF_METRICS@
 MOZ_LEAKY	= @MOZ_LEAKY@
+MOZ_JPROF       = @MOZ_JPROF@
 DETECT_WEBSHELL_LEAKS = @DETECT_WEBSHELL_LEAKS@
 BUILD_PROFILE	= @MOZILLA_GPROF@
 GC_LEAK_DETECTOR = @GC_LEAK_DETECTOR@