Modified: trunk/dports/devel/boost/Portfile (77330 => 77331)

--- trunk/dports/devel/boost/Portfile	2011-03-27 15:35:01 UTC (rev 77330)
+++ trunk/dports/devel/boost/Portfile	2011-03-27 17:05:27 UTC (rev 77331)
@@ -74,10 +74,14 @@
 
 }
 
+# Although bjam can supposedly use parallel builds, it has random failures. See #28878 and #23531.
+# To re-enable it, comment out the below and add '-j${build.jobs}' to 'build.args', also below.
+#
+use_parallel_build  no
+
 build.cmd       ${worksrcpath}/bjam
 build.target
-build.args      -j${build.jobs} \
-                -d2 \
+build.args      -d2 \
                 --layout=tagged \
                 --debug-configuration \
                 --user-config=user-config.jam \