diff --git a/libraries/CGAL/CGAL.SlackBuild b/libraries/CGAL/CGAL.SlackBuild
index a632345a72..516ef81152 100644
--- a/libraries/CGAL/CGAL.SlackBuild
+++ b/libraries/CGAL/CGAL.SlackBuild
@@ -22,11 +22,15 @@
 #  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 #  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+# 20220416 bkw: Modified by SlackBuilds.org, BUILD=2:
+# - man page goes in /usr/man/man1/blah.1.gz, not /usr/man/blah1.gz!
+# - remove useless INSTALL.md from doc dir.
+
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=CGAL
 VERSION=${VERSION:-4.13}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
 
@@ -38,9 +42,6 @@ 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
@@ -75,9 +76,9 @@ cd $PRGNAM-$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 {} \+
 
 mkdir -p build
 cd build
@@ -86,27 +87,23 @@ cd build
     -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DCGAL_INSTALL_LIB_DIR=lib${LIBDIRSUFFIX} \
-    -DCGAL_INSTALL_MAN_DIR=man \
+    -DCGAL_INSTALL_MAN_DIR=man/man1 \
     -DCGAL_INSTALL_CMAKE_DIR=lib${LIBDIRSUFFIX}/CGAL \
     -DCMAKE_BUILD_TYPE=Release ..
   make
-  make install DESTDIR=$PKG
+  make install/strip DESTDIR=$PKG
 cd ..
 
-find $PKG/usr/man -type f -exec gzip -9 {} \;
-for i in $(find $PKG/usr/man -type l) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
+gzip -9 $PKG/usr/man/man*/*
 
 # We don't really need this :P
 rm $PKG/usr/bin/cgal_make_macosx_app
 
-find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
-  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
-
 # Remove installed docs, create full set of docs in right place
 rm -rf $PKG/usr/share/
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
 cp -a \
-  AUTHORS CHANGES.md INSTALL.md README VERSION \
+  AUTHORS CHANGES.md README VERSION \
   LICENSE LICENSE.FREE_USE LICENSE.GPL LICENSE.LGPL LICENSE.BSL \
   $PKG/usr/doc/$PRGNAM-$VERSION
 cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild