When parts of iostream lib are directly compiled into tests, without

any DLL created, we should not set BOOST_IOSTREAMS_DYN_LIB.


[SVN r36192]

libs/iostreams

@@ -1 +1 @@
-Subproject commit de8f315f3b1dd9e17aec40f4aea7ada650c4d030
+Subproject commit 3d82d1a4e1fc05f64290b87b6a753d26b2cbb59f