* fileio/init.c: Update to new mount API.
* iostream/init.cc: Hack to work around confdefs.h in C++.
* iostream/system.h: Add comment about base miniIMFS.
* iostream/Makefile.am: Change the executable name so it does not
create a file which is the same name as the standard header file.
* iostream/system.h: Need to increase the number of semaphores for
the libstdc++ runtime.