xbmk: use sbase sha512sum, not host sha512sum

the --status flag seems to be a GNUism

as stated in the previous commit, i import sbase
suckless now, so as to have a consistent implementation
of sha512sum.

this ensures that its output is reliable, when i'm using
the output of this command within backticks.

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

include/get.sh

@@ -313,7 +313,8 @@ bad_checksum()
 		return 0
 	fi
 
-	csum="$(x_ sha512sum "$2" | awk '{print $1}')" || \
+	build_sbase
+	csum="$(x_ "$sha512sum" "$2" | awk '{print $1}')" || \
 	    err "!sha512 '$2' $1" bad_checksum "$@"
 
 	if [ "$csum" = "$1" ]; then

include/init.sh

@@ -35,11 +35,14 @@ checkvarschk=""
 is_child=""
 basetmp=""
 
+sha512sum="util/sbase/sha512sum"
+
 xbmk_init()
 {
 	xbmkpwd="`pwd || err "Cannot generate PWD"`" || err "!" xbmk_init "$@"
 	xbmklock="$xbmkpwd/lock"
 	basetmp="$xbmkpwd/xbmkwd"
+	sha512sum="$xbmkpwd/util/sbase/sha512sum"
 
 	if [ $# -gt 0 ] && [ "$1" = "dependencies" ]; then
 		x_ xbmkpkg "$@"

include/lib.sh

@@ -162,6 +162,13 @@ unpad_one_byte()
 	x_ mv "$unpaddedfile" "$1"
 }
 
+build_sbase()
+{
+	if [ ! -f "$sha512sum" ]; then
+		x_ make -C "$xbmkpwd/util/sbase"
+	fi
+}
+
 fx_()
 {
 	xchk fx_ "$@"

include/tree.sh

@@ -442,11 +442,13 @@ project_up_to_date()
 		    "$@"
 	fi
 
-	fx_ "x_ sha512sum" find "$@" -type f -not -path "*/.git*/*" | awk \
-	    '{print $1}' > "$xbtmp/tmp.hash" || err "!h $project $hashdir" \
+	build_sbase
+	fx_ "x_ util/sbase/sha512sum" find "$@" -type f -not -path \
+	    "*/.git*/*" | awk '{print $1}' > "$xbtmp/tmp.hash" || \
+	    err "!h $project $hashdir" \
 	    "project_up_to_date" "$hashdir" "$hashname" "$badhashvar" "$@"
 
-	hash="$(x_ sha512sum "$xbtmp/tmp.hash" | awk '{print $1}' || \
+	hash="$(x_ "$sha512sum" "$xbtmp/tmp.hash" | awk '{print $1}' || \
 	    err)" || err "$hashname: Can't read sha512 of '$xbtmp/tmp.hash'" \
 	    "project_up_to_date" "$hashdir" "$hashname" "$badhashvar" "$@"
 

include/vendor.sh

@@ -602,11 +602,13 @@ prep()
 
 mksha512()
 {
+	build_sbase
+
 	if [ "${1%/*}" != "$1" ]; then
 		x_ cd "${1%/*}"
 	fi
 
-	x_ sha512sum ./"${1##*/}" >> "$2" || \
+	x_ "$sha512sum" ./"${1##*/}" >> "$2" || \
 	    err "!sha512sum \"$1\" > \"$2\"" "mksha512" "$@"
 }
 
@@ -711,11 +713,13 @@ vfile()
 # must be called from a subshell
 check_vendor_hashes()
 {
+	build_sbase
+
 	x_ cd "$tmpromdir"
 
 	if [ "$has_hashes" != "n" ] && [ "$nuke" != "nuke" ]; then
-		sha512sum --status -c "$hashfile" || x_ sha1sum --status \
-		    -c "$hashfile"
+		( x_ "$sha512sum" -c "$hashfile" ) || \
+		    x_ sha1sum -c "$hashfile"
 	fi
 
 	x_ rm -f "$hashfile"