diff --git a/development/asl/asl.SlackBuild b/development/asl/asl.SlackBuild
index 95e5e8acf6..3a6696be1d 100644
--- a/development/asl/asl.SlackBuild
+++ b/development/asl/asl.SlackBuild
@@ -7,6 +7,7 @@
 # Original version had no license. Modified version released under the
 # WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
 
+# 20191202 bkw: update for 142_bld150.
 # 20180911 bkw: update for 142_bld137.
 # 20180615 bkw: update for 142_bld134.
 
@@ -25,7 +26,7 @@
 
 PRGNAM=asl
 SRCNAM=asl-current
-VERSION=${VERSION:-142_bld137}
+VERSION=${VERSION:-142_bld150}
 SRCVER=$(echo $VERSION | tr _ -)
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
@@ -66,11 +67,8 @@ rm -rf $SRCNAM
 tar xvf $CWD/$SRCNAM-$SRCVER.tar.?z*
 cd $SRCNAM
 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 \
- \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
-  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
+        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+
 
 sed -e "/^CFLAGS/s,=.*,= $SLKCFLAGS," \
     -e 's,/local,,' \
@@ -132,6 +130,9 @@ for doctype in $DOCTYPES; do
   done
 done
 
+# 20191202 bkw: even after all that, I have to do this:
+rm -f $PKG/usr/doc/$PRGNAM-$VERSION/*.tex
+
 cp -a BENCHES README README.LANGS TODO changelog \
     $PKG/usr/doc/$PRGNAM-$VERSION
 cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
diff --git a/development/asl/asl.info b/development/asl/asl.info
index 6049983c8e..55482210cc 100644
--- a/development/asl/asl.info
+++ b/development/asl/asl.info
@@ -1,8 +1,8 @@
 PRGNAM="asl"
-VERSION="142_bld137"
+VERSION="142_bld150"
 HOMEPAGE="http://john.ccac.rwth-aachen.de:8000/as/"
-DOWNLOAD="http://john.ccac.rwth-aachen.de:8000/ftp/as/source/c_version/asl-current-142-bld137.tar.bz2"
-MD5SUM="fd690b7c9ca8fba7c33158bf403169e1"
+DOWNLOAD="http://john.ccac.rwth-aachen.de:8000/ftp/as/source/c_version/asl-current-142-bld150.tar.bz2"
+MD5SUM="89b1a389f6c28927cc9c7b65420553db"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
 REQUIRES=""