Remove .gitignore entries where they match source files that are tracked in Git. This is relevant to me at least, as some code searching tools use .gitignore files and will ignore matched files.
* configure.ac: Call `AC_USE_SYSTEM_EXTENSIONS', and `GUIX_SYSTEM_TYPE'. Add `--with-store-dir' option, and substitute `storedir'. Include `config-daemon.ac'. * config-daemon.ac: New file. * Makefile.am [BUILD_DAEMON]: Include `daemon.am'. * daemon.am: New file. * m4/guix.m4 (GUIX_SYSTEM_TYPE): New macro. * nix/libutil/gcrypt-hash.cc, nix/libutil/gcrypt-hash.hh, nix/libutil/md5.h, nix/libutil/sha1.h, nix/libutil/sha256.h, nix/nix-daemon/guix-daemon.cc, nix/nix-daemon/shared.hh: New files.