In case the zlib compression was used, then the librtemscpu.a depended on libz.a. To avoid a GCC patch or complicated link flags move the JFFS2 support into a separate library to use a simple "-ljffs2 -lz" to link the executable.
* Makefile.am, preinstall.am, libcsupport/src/mknod.c, libcsupport/src/open.c, libcsupport/src/pipe.c, libfs/Makefile.am, libfs/preinstall.am, libfs/src/imfs/imfs.h, libfs/src/imfs/imfs_creat.c, libfs/src/imfs/imfs_debug.c, libfs/src/imfs/imfs_eval.c, libfs/src/imfs/imfs_initsupp.c, libfs/src/imfs/imfs_mknod.c, libfs/src/imfs/imfs_stat.c, libfs/src/imfs/memfile.c: Initial commit of POSIX pipe support. * libfs/src/imfs/imfs_fifo.c, libfs/src/pipe/fifo.c, libfs/src/pipe/pipe.c, libfs/src/pipe/pipe.h: New files.
