We are using bison to generate certain files when preparing the libc. However the yacc(1) wrapper script is used instead of calling bison directly which does not work if bison is not installed but the original yacc(1). Fixes #225. Fixes #227.
Fixes #221.
This commit enables libc's own libresolv and its dependencies.
The 'memory.h' libc header is included by the openjpeg library.
