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, 24 insertions, 0 deletions

diff --git a/util/sbase/tty.1 b/util/sbase/tty.1
new file mode 100644
index 00000000..11580e32
--- /dev/null
+++ b/util/sbase/tty.1
@@ -0,0 +1,24 @@
+.Dd October 8, 2015
+.Dt TTY 1
+.Os sbase
+.Sh NAME
+.Nm tty
+.Nd print terminal name
+.Sh SYNOPSIS
+.Nm
+.Sh DESCRIPTION
+.Nm
+writes the name of the terminal open on stdin to stdout.
+.Sh EXIT STATUS
+.Bl -tag -width Ds
+.It 0
+stdin is a terminal.
+.It 1
+stdin is not a terminal.
+.It > 1
+An error occurred.
+.El
+.Sh SEE ALSO
+.Xr ttyname 3
+.Sh STANDARDS
+POSIX.1-2013.