libc_resolv is a {free,get}addrinfo() plugin, mainly for use with NOUX.
We prefix the original libc functions to with 'libc_' so there is no
symbol conflict with file_operations.cc.
Certain rpc headers are needed for compiling getaddrinfo.c. Unfortunatly
that means we have to generate _a few_ header files which we do when we
prepare the libc.
These header files need to be created before the symlinks. Also, some of
these header files depend on a patch. Therefore we apply the patches
first, generate the header files and in the end we create the symlinks.
Fixes#296.
The 'log2()' and 'log2f()' functions have been added in FreeBSD's libc
version 9.0.0, but they are missing in version 8.2.0, which is used in
Genode. This patch provides preliminary implementations of these
functions until the Genode libc gets updated to version 9.0.0 or above.
Fixes#143.
