config/git: import suckless sbase

i currently use the output of sha512sum in several
places of xbmk, which is a bit unreliable in case
output changes.

other cases where i use util outputs in variables
are probably reliable, because i'm using mostly
posix utilities in those.

to mitigate this, i now import suckless sbase, which
has a reasonable sha512sum implementation.

*every* binary it builds is being placed in build.list,
because i'll probably start using more of them.

for example, i may start modifying the "date"
implementation, adding the GNU-specific options that
i need as mentioned on init.sh

i'm importing it in util/ because the sha512sum
util is needed for verifying project sources, so
if sbase itself is a "project source", that means
we can into a chicken and egg bootstrapping problem.

this is sbase at revision:
055cc1ae1b3a13c3d8f25af0a4a3316590efcd48

Signed-off-by: Leah Rowe <leah@libreboot.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/util/sbase/ln.1 b/util/sbase/ln.1
new file mode 100644
index 00000000..057b5a09
--- /dev/null
+++ b/util/sbase/ln.1
@@ -0,0 +1,61 @@
+.Dd October 8, 2015
+.Dt LN 1
+.Os sbase
+.Sh NAME
+.Nm ln
+.Nd link files
+.Sh SYNOPSIS
+.Nm
+.Op Fl f
+.Op Fl L | Fl P | Fl s
+.Ar target
+.Op Ar name
+.Nm
+.Op Fl f
+.Op Fl L | Fl P | Fl s
+.Ar target ...
+.Ar directory
+.Sh DESCRIPTION
+.Nm
+creates a hard link
+.Ar name
+to
+.Ar target .
+If no
+.Ar name
+is given, a hard link to
+.Ar target
+is created in the current directory.
+If more than one
+.Ar target
+is given,
+.Nm
+hardlinks them in the existing
+.Ar directory .
+.Sh OPTIONS
+.Bl -tag -width Ds
+.It Fl f
+If
+.Ar name
+exists and is not a
+.Ar target ,
+remove it to allow the link.
+.It Fl L | Fl P
+If
+.Ar target
+is a symbolic link, create a hard link to the (referenced file) |
+(symbolic link itself). The former is the default.
+.It Fl s
+Create symbolic links instead of hard links.
+Disables
+.Fl L
+and
+.Fl P ,
+because their purpose does not apply to symbolic links.
+.El
+.Sh SEE ALSO
+.Xr cp 1 ,
+.Xr link 2 ,
+.Xr symlink 2
+.Sh STANDARDS
+POSIX.1-2013.