system/blake2: Strip binary, use SLKCFLAGS.

Signed-off-by: B. Watson <yalhcru@gmail.com>

system/blake2/README

@@ -3,3 +3,7 @@ the SHA-3 finalist BLAKE. BLAKE2 offers the highest security, yet is
 fast as MD5 on 64-bit platforms and requires less RAM.
 
 This script builds the b2sum binary.
+
+Note: if you get 'illegal instruction' errors from b2sum at runtime,
+this is due to upstream's use of -march=native optimization. Rebuild
+the package with FORCE_SLACK_CFLAGS=yes to avoid this.

system/blake2/blake2.SlackBuild

@@ -22,12 +22,16 @@
 #  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 #  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+# 20220301 bkw: Modified by SlackBuilds.org, BUILD=2:
+# - use SLKCFLAGS.
+# - install binary stripped.
+
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=blake2
 VERSION=${VERSION:-20160619}
 SRCNAM=BLAKE2
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
 
@@ -39,9 +43,6 @@ if [ -z "$ARCH" ]; then
   esac
 fi
 
-# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
-# the name of the created package would be, and then exit. This information
-# could be useful to other scripts.
 if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
   echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
   exit 0
@@ -51,6 +52,7 @@ TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
 OUTPUT=${OUTPUT:-/tmp}
 
+# 20220404 bkw: nothing here uses LIBDIRSUFFIX.
 if [ "$ARCH" = "i586" ]; then
   SLKCFLAGS="-O2 -march=i586 -mtune=i686"
   LIBDIRSUFFIX=""
@@ -76,15 +78,17 @@ cd $SRCNAM-$VERSION
 chown -R root:root .
 find -L . \
  \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
-  -o -perm 511 \) -exec chmod 755 {} \; -o \
+  -o -perm 511 \) -exec chmod 755 {} \+ -o \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
- -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+ -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \+
 
+[ "${FORCE_SLACK_CFLAGS:-no}" = "yes" ] && export CFLAGS="$SLKCFLAGS"
 cd b2sum
 make
 
+
 mkdir -p $PKG/usr/bin
-install -m 0755 b2sum $PKG/usr/bin/b2sum
+install -s -m 0755 b2sum $PKG/usr/bin/b2sum
 
 cd ..
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION