diff --git a/BUILD-TDE.sh b/BUILD-TDE.sh
index 4024394..53e5e38 100755
--- a/BUILD-TDE.sh
+++ b/BUILD-TDE.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 ## suppress error messages
-exec 2>/dev/null
+[[ $VERBOSE != 1 ]] && exec 2>/dev/null
 
 export TMPVARS=/tmp/build/vars
 [[ ! -d $TMPVARS ]] && mkdir -p $TMPVARS
@@ -83,6 +83,11 @@ TMP=${TMP:-/tmp}
 export LIBPNG_TMP=$TMP
 export BUILD_TDE_ROOT=$(pwd)
 
+# Place to build (TMP_BUILD), package (PKG), and output (OUTPUT) the program:
+## ### moved from get-source.sh to export variables for ocaml, facile, gdl, and double-conversion builds
+export TMP_BUILD=$TMP/build
+#export PKG=$TMP_BUILD/package-$PRGNAM
+export OUTPUT=$TMP
 
 ###################################################
 
@@ -413,7 +418,7 @@ Non-TDE apps are in the Misc category and don't need the \Zb\Zr\Z4R\Znequired TD
 "Apps/kvkbd" "A virtual keyboard for TDE" off "\Zb\Z6   \Zn" \
 "Apps/kvpnc" "TDE frontend for various vpn clients" off "\Zb\Z6 Miscellaneous documentation will be in $(cat $TMPVARS/INSTALL_TDE)/doc/kvpnc-$(cat $TMPVARS/TDEVERSION)  \Zn" \
 "Apps/piklab" "IDE for PIC microcontrollers" off "\Zb\Z6   \Zn" \
-" Misc/potrace" "For tracing bitmaps to a vector graphics format" off "\Zb\Z6 Required for potracegui, optional for inkscape \Zn" \
+" Misc/potrace" "For tracing bitmaps to a vector graphics format" off "\Zb\Z6 Required for potracegui, and inkscape \Zn" \
 "Apps/potracegui" "A GUI for potrace" off "\Zb\Z6 Requires potrace \Zn" \
 "Apps/rosegarden" "Audio sequencer and musical notation editor" off "\Zb\Z6 Requires jack-audio-connection-kit liblo and dssi for proper functionality \Zn" \
 "Apps/soundkonverter" "Frontend to various audio converters" off "\Zb\Z6   \Zn" \
@@ -426,7 +431,7 @@ Non-TDE apps are in the Misc category and don't need the \Zb\Zr\Z4R\Znequired TD
 "Apps/twin-style-crystal" "Twin theme" off "\Zb\Z6   \Zn" \
 "Apps/yakuake" "Quake-style terminal emulator" off "\Zb\Z6   \Zn" \
 " Misc/lxml" "Python bindings for libxml2 and libxslt" off "\Zb\Z6 Required to use Inkscape online help \Zn" \
-" Misc/inkscape" "SVG editor - an alternative to potrace, potracegui [and GraphicsMagick]." off "\Zb\Z6 Requires lxml if online help facility is required, potrace is a build-time option. \Zn" \
+" Misc/inkscape" "SVG editor - an alternative to potracegui [and GraphicsMagick]." off "\Zb\Z6 Requires lxml if online help facility is required; potrace is a build-time dependency. \Zn" \
 2> $TMPVARS/TDEbuilds
 # successful builds are removed from the TDEbuilds list by '$dir ' so add a space to the last entry
 # and the " needs to be removed because the Misc entries are double-quoted
@@ -855,8 +860,8 @@ do
   echo -e "\033[39;1m
 
  Starting $package.SlackBuild
- $(printf '%0.s\"' $(seq 1 $[${#package}+20]))
-  \033[0m"
+ $(printf '%0.s\"' $(seq 1 $[${#package}+20]))  \033[0m"
+
 ## set 'noarch' for i18n packages
   ARCH_i18n="" && [[ $package == *i18n* ]] && ARCH_i18n=noarch
 ## TDEPFX could be set '' from null [n/a], in which case set TDE_PFX="", or
diff --git a/Core/tdeedu/tdeedu.SlackBuild b/Core/tdeedu/tdeedu.SlackBuild
index d94d18e..439357a 100755
--- a/Core/tdeedu/tdeedu.SlackBuild
+++ b/Core/tdeedu/tdeedu.SlackBuild
@@ -28,34 +28,6 @@ VERSION=$TDEVERSION
 BUILD=${BUILD:-1}
 TAG=${TAG:-_tde}
 
-source ../../get-source.sh
-getsource_fn
-
-untar_fn
-
-## patch for kig python scripting error:
-## kig: /usr/include/boost/python/object_core.hpp:422: boost::python::api::object_base::~object_base(): Assertion `Py_REFCNT(m_ptr) > 0' failed.
-## Re: https://bugs.kde.org/show_bug.cgi?id=401512#c5
-[[ $TDEVERSION == 14.0.9 ]] && EXTN=cc || EXTN=cpp
-patch -N -p0 << EOF || true
---- kig/scripting/python_scripter.$EXTN
-+++ kig/scripting/python_scripter.$EXTN
-@@ -493,0 +494 @@
-+      Py_XINCREF((objectvect.begin() +i)->ptr());
-EOF
-
-## for 14.0.9, already done in cgit
-sed -i 's|Nome del file di input|Input filename|' kig/pykig/pykig.py
-
-## add some files to html docs
-sed -i 's|*.png|& *.svgz README|' cmake/modules/TDEMacros.cmake
-
-listdocs_fn
-
-chown_fn
-
-cd_builddir_fn
-
 # ### Kalzium Chemical Equation Solver - start
 ## Needs OCaml and facile
 ocaml_installed_fn () { [[ -s /usr/local/lib$LIBDIRSUFFIX/ocaml/libnums.a ]] && \
@@ -75,7 +47,8 @@ rm -rf *ocaml*
 tar xf $BUILD_TDE_ROOT/src/4.05.0.tar.gz
 cd ocaml-4.05.0/
 
-./configure -cc $COMPILER -libdir /usr/local/lib$LIBDIRSUFFIX/ocaml
+## force "gcc -fcommon" for gcc10 build - see https://github.com/ocaml/ocaml/issues/9622
+./configure -cc "gcc -fcommon" -libdir /usr/local/lib$LIBDIRSUFFIX/ocaml
 ## finish build with -j1 if there are race condition errors
 make ${NUMJOBS:-} world.opt || make world.opt
 DESTDIR=$TMP_BUILD/package-ocaml make install
@@ -108,6 +81,34 @@ ocaml_installed_fn || { echo -e " installation of ocaml/facile failed \n" ; exit
 OCAML="ON"
 # ### Kalzium Chemical Equation Solver - end
 
+source ../../get-source.sh
+getsource_fn
+
+untar_fn
+
+## patch for kig python scripting error:
+## kig: /usr/include/boost/python/object_core.hpp:422: boost::python::api::object_base::~object_base(): Assertion `Py_REFCNT(m_ptr) > 0' failed.
+## Re: https://bugs.kde.org/show_bug.cgi?id=401512#c5
+[[ $TDEVERSION == 14.0.9 ]] && EXTN=cc || EXTN=cpp
+patch -N -p0 << EOF || true
+--- kig/scripting/python_scripter.$EXTN
++++ kig/scripting/python_scripter.$EXTN
+@@ -493,0 +494 @@
++      Py_XINCREF((objectvect.begin() +i)->ptr());
+EOF
+
+## for 14.0.9, already done in cgit
+sed -i 's|Nome del file di input|Input filename|' kig/pykig/pykig.py
+
+## add some files to html docs
+sed -i 's|*.png|& *.svgz README|' cmake/modules/TDEMacros.cmake
+
+listdocs_fn
+
+chown_fn
+
+cd_builddir_fn
+
 ## kig python scripting support
 [[ $(ls -1 /usr/lib$LIBDIRSUFFIX/libboost_python*.so) ]] && KIG_PS="ON"
 
diff --git a/Core/tdegraphics/tdegraphics.SlackBuild b/Core/tdegraphics/tdegraphics.SlackBuild
index e03eec2..9cd288b 100755
--- a/Core/tdegraphics/tdegraphics.SlackBuild
+++ b/Core/tdegraphics/tdegraphics.SlackBuild
@@ -54,6 +54,11 @@ chown_fn
 
 cd_builddir_fn
 
+## Slackware current build with poppler v21....
+## error: cannot convert ‘XRef*’ to ‘PDFDoc*’
+## Workaround until resolved:
+[[ $(ls /var/log/packages/poppler-*) == *-2[1-9].* ]] &&  W_PDF=OFF
+
 # If imlib is installed, include Kuickshow:
 [[ -s /usr/include/Imlib.h ]] && KUICKSHOW=ON
 cmake \
@@ -69,7 +74,7 @@ cmake \
     -DWITH_PAPER="OFF" \
     -DWITH_TIFF="OFF" \
     -DWITH_OPENEXR="OFF" \
-    -DWITH_PDF="ON" \
+    -DWITH_PDF=${W_PDF:-ON} \
     -DBUILD_DOC="ON" \
     -DBUILD_TDEFILE_PLUGINS="ON" \
     -DBUILD_KUICKSHOW=${KUICKSHOW:-OFF} \
diff --git a/Deps/tqt3/tqt3.SlackBuild b/Deps/tqt3/tqt3.SlackBuild
index 77ae733..cbefd4b 100755
--- a/Deps/tqt3/tqt3.SlackBuild
+++ b/Deps/tqt3/tqt3.SlackBuild
@@ -45,6 +45,8 @@ sed -i "s|QMAKE_RPATH.*$|QMAKE_RPATH =|" mkspecs/linux-g++/qmake.conf
 
 ## tqt libs might be installed in $([T]QTDIR)/lib64
 sed -i "s|QTDIR)/lib|&$LIBDIRSUFFIX|" mkspecs/linux-g++/qmake.conf
+## [open]GL libs might be installed in ../lib64
+sed -i "s|X11R6/lib|&$LIBDIRSUFFIX|" mkspecs/linux-g++/qmake.conf
 ## add -headerdir as set in configure
 [[ $TDEVERSION == 14.1.0 ]] && QTDIR_PFX=T || QTDIR=$TQTDIR
 sed -i "s|QMAKE_INCDIR		=|& \$(${QTDIR_PFX:-}QTDIR)/include/tqt|" mkspecs/linux-g++/qmake.conf
@@ -113,6 +115,7 @@ echo "yes" | \
  -verbose \
  -I/usr/include/freetype2 \
  -I/usr/include/mysql \
+ -I/usr/include/tirpc \
  -L/usr/lib$LIBDIRSUFFIX \
  -system-zlib \
  -qt-imgfmt-png \
diff --git a/Misc/graphviz/README b/Misc/graphviz/README
index 7a0c76d..b4bc1a2 100644
--- a/Misc/graphviz/README
+++ b/Misc/graphviz/README
@@ -12,5 +12,5 @@ gts is an optional dependency.
 ------------------------------
 
 pdf and html documentation is not built by default in the SlackBuild.
-To build it, comment out 'rm -rf $PKG/usr/share/$PRGNAM/doc' in the script [c. line 110].
+To build it, comment out 'rm -rf $PKG/usr/share/$PRGNAM/doc' in the script [c. line 95].
  
diff --git a/Misc/inkscape/README b/Misc/inkscape/README
new file mode 100644
index 0000000..4ded2fd
--- /dev/null
+++ b/Misc/inkscape/README
@@ -0,0 +1,6 @@
+inkscape v1.0.2 requires non-Slackware packages gdl and double-conversion.
+
+The sources will need to be pre-downloaded and placed in the 'src' directory and will then be built, packaged, and installed during the inkscape build.
+
+The URLs will be displayed when running the SlackBuild if the installations or sources aren't found.
+ 
diff --git a/Misc/inkscape/inkscape.SlackBuild b/Misc/inkscape/inkscape.SlackBuild
index 4165936..c1eef4a 100755
--- a/Misc/inkscape/inkscape.SlackBuild
+++ b/Misc/inkscape/inkscape.SlackBuild
@@ -24,11 +24,80 @@
 #   SUCH DAMAGE.
 
 PRGNAM=inkscape
-VERSION=0.92.4
+## store version for later use to set $version for package name -
+## too late for log file name, but sort that out when Sl current is released as Sl 15
+## and this script updated for v1.x.x only
+echo 0.92.4 > $TMPVARS/INKSC_VERS && {
+## v 1.0.2 for Slackware current
+[[ $(ls /var/log/packages/poppler-*) == *-2[1-9].* ]] && echo 1.0.2 > $TMPVARS/INKSC_VERS ; }
+VERSION=$(cat $TMPVARS/INKSC_VERS)
 BUILD=${BUILD:-1}
 
-SRCURL="https://media.inkscape.org/dl/resources/file/inkscape-$VERSION.tar.bz2"
-ARCHIVE_TYPE="tar.bz2"
+ARCHIVE_TYPE="tar.bz2" && [[ $VERSION == 1.0.2 ]] && ARCHIVE_TYPE="tar.xz"
+SRCURL="https://media.inkscape.org/dl/resources/file/$PRGNAM-$VERSION.$ARCHIVE_TYPE"
+
+## inkscape v1.0.2 for Slackware current needs gdl and double-conversion
+# ### gdl and double-conversion  - start
+[[ $(ls /var/log/packages/poppler-*) == *-2[1-9].* ]] && {
+## If they are already installed, go to end
+[[ -s /usr/local/lib$LIBDIRSUFFIX/libgdl-3.so ]] && \
+[[ -s /usr/local/lib$LIBDIRSUFFIX/libdouble-conversion.so ]] || {
+## otherwise, if the source archives are in 'src' ..
+[[ -s $BUILD_TDE_ROOT/src/gdl-3.34.0.tar.xz ]] && \
+[[ -s $BUILD_TDE_ROOT/src/double-conversion-3.1.5.tar.gz ]] && {
+## .. build, package, and install them
+(
+## gdl:
+echo -e "\n building gdl \n"
+
+cd /$TMP_BUILD
+rm -rf *gdl*
+tar xf $BUILD_TDE_ROOT/src/gdl-3.34.0.tar.xz
+cd gdl-3.34.0
+
+LOCALES=$(cat po/LINGUAS)
+rm po/LINGUAS
+for locale in $I18N
+ do
+ [[ $LOCALES == *$locale* ]] && echo $locale >> po/LINGUAS
+ done
+
+./configure --libdir=/usr/local/lib$LIBDIRSUFFIX
+make $NUMJOBS
+DESTDIR=$TMP_BUILD/package-gdl make install
+
+cd $TMP_BUILD/package-gdl
+makepkg -l y -c n $OUTPUT/gdl-3.34.0-$ARCH-$BUILD.txz
+installpkg $OUTPUT/gdl-3.34.0-$ARCH-$BUILD.txz
+
+## double-conversion:
+echo -e "\n building double-conversion \n"
+
+cd /$TMP_BUILD
+rm -rf *double-conversion*
+tar xf $BUILD_TDE_ROOT/src/double-conversion-3.1.5.tar.gz
+cd double-conversion-3.1.5/
+
+cd cmake/
+# LIBDIRSUFFIX not required - builds to lib$LIBDIRSUFFIX ..
+cmake ../ -DBUILD_SHARED_LIBS=ON
+make $NUMJOBS
+DESTDIR=$TMP_BUILD/package-double-conversion make install
+
+cd $TMP_BUILD/package-double-conversion
+makepkg -l y -c n $OUTPUT/double-conversion-3.1.5-$ARCH-$BUILD.txz
+installpkg $OUTPUT/double-conversion-3.1.5-$ARCH-$BUILD.txz
+)
+echo -e "\n returning to building inkscape \n"
+} || { ## .. but if the source archives aren't in 'src', display message ..
+echo -e "\n ############ \n\n\033[39;1m gdl and/or double-conversion are not installed and are required for this build \n \033[34;1m
+ Download:
+\n wget -O $BUILD_TDE_ROOT/src/gdl-3.34.0.tar.xz https://download.gnome.org/sources/gdl/3.34/gdl-3.34.0.tar.xz
+\n wget -O $BUILD_TDE_ROOT/src/double-conversion-3.1.5.tar.gz https://github.com/google/double-conversion/archive/v3.1.5.tar.gz
+\n and re-run this script .. \n\n \033[0m ############ \n" ; exit 1 ; }
+}
+}
+# ### gdl and double-conversion - end
 
 source ../../get-source.sh
 getsource_fn
@@ -49,6 +118,7 @@ sed -i 's|lib/inkscape|lib${LIB_SUFFIX}/inkscape|' CMakeScripts/HelperMacros.cma
 }
 
 ## only build for required locales
+# ### TODO tidy up when Sl 15 released and v0.92.4 no longer built
 {
 ## set up a directory to store the required locale files temporarily
 TEMP_DIR=$TMP_BUILD/tmp-$PRGNAM/loc_tmp
@@ -113,6 +183,10 @@ chown_fn
 cd_builddir_fn
 
 ## default options have been pulled from CMakeLists.txt
+## These next two determine the RPATH for the inkscape library relative to the binary:
+## INKSCAPE_INSTALL_LIBDIR is an addition for v1.0.2 and is relative to CMAKE_INSTALL_PREFIX/
+## LIB_SUFFIX is used for v0.92.4
+# ### TODO docs and man to /usr/local ..
 cmake \
     -DCMAKE_C_FLAGS="$SLKCFLAGS" \
     -DCMAKE_CXX_FLAGS="$SLKCFLAGS" \
@@ -120,25 +194,33 @@ cmake \
     -DCMAKE_CXX_COMPILER=$COMPILER_CXX \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_INSTALL_PREFIX=/usr/local \
+    -DINKSCAPE_INSTALL_LIBDIR=lib$LIBDIRSUFFIX/inkscape \
     -DLIB_SUFFIX=$LIBDIRSUFFIX \
+    -DBUILD_SHARED_LIBS="ON" \
+    -DENABLE_BINRELOC="OFF" \
     -DENABLE_LCMS="ON" \
     -DENABLE_POPPLER="ON" \
     -DENABLE_POPPLER_CAIRO="ON" \
+    -DWITH_ASAN="OFF" \
     -DWITH_DBUS="OFF" \
+    -DWITH_FUZZ="OFF" \
     -DWITH_GNOME_VFS="ON" \
-    -DWITH_SVG2="ON" \
-    -DWITH_LPETOOL="OFF" \
-    -DWITH_INKJAR="ON" \
-    -DWITH_OPENMP="ON" \
-    -DWITH_PROFILING="OFF" \
+    -DWITH_GRAPHICS_MAGICK="ON" \
+    -DWITH_GTK3_EXPERIMENTAL="OFF" \
+    -DWITH_GTKSPELL="OFF" \
     -DWITH_IMAGE_MAGICK="ON" \
+    -DWITH_INKJAR="ON" \
+    -DWITH_JEMALLOC="OFF" \
     -DWITH_LIBCDR="ON" \
     -DWITH_LIBVISIO="ON" \
     -DWITH_LIBWPG="ON" \
+    -DWITH_LPETOOL="OFF" \
+    -DLPE_ENABLE_TEST_EFFECTS="OFF" \
+    -DWITH_MANPAGE_COMPRESSION="ON" \
     -DWITH_NLS="ON" \
-    -DWITH_GTK3_EXPERIMENTAL="OFF" \
-    -DWITH_GTKSPELL="OFF" \
-    -DENABLE_BINRELOC="OFF" \
+    -DWITH_OPENMP="ON" \
+    -DWITH_PROFILING="OFF" \
+    -DWITH_SVG2="ON" \
     -Wno-dev \
     ..
 
diff --git a/Misc/mp4v2/mp4v2.SlackBuild b/Misc/mp4v2/mp4v2.SlackBuild
index 59cc4a4..4f29c9c 100644
--- a/Misc/mp4v2/mp4v2.SlackBuild
+++ b/Misc/mp4v2/mp4v2.SlackBuild
@@ -39,6 +39,41 @@ untar_fn
 ## patch for gcc7 ../src/rtphint.cpp:342:35: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
 sed -i "s|(pSlash != '|(*pSlash != '|" src/rtphint.cpp
 
+## patch for gcc10 - error: narrowing conversion of ‘mp4v2::util::SubtitleUtility::LC_LIST’ from ‘unsigned int’ to ‘int’, etc..
+## thanks to https://bugs.gentoo.org/723098
+patch -N -p0 << EOF || true
+--- libutil/Utility.cpp
++++ libutil/Utility.cpp
+@@ -496,1 +496,1 @@
+-        switch( code ) {
++        switch( static_cast<unsigned int>( code ) ) {
+--- util/mp4art.cpp
++++ util/mp4art.cpp
+@@ -379,1 +379,1 @@
+-    switch( code ) {
++    switch( static_cast<unsigned int> ( code ) ) {
+--- util/mp4chaps.cpp
++++ util/mp4chaps.cpp
+@@ -635,1 +635,1 @@
+-    switch( code ) {
++    switch( static_cast<unsigned int> ( code ) ) {
+--- util/mp4file.cpp
++++ util/mp4file.cpp
+@@ -192,1 +192,1 @@
+-    switch( code ) {
++    switch( static_cast<unsigned int>( code ) ) {
+--- util/mp4subtitle.cpp
++++ util/mp4subtitle.cpp
+@@ -167,1 +167,1 @@
+-    switch( code ) {
++    switch( static_cast<unsigned int>( code ) ) {
+--- util/mp4track.cpp
++++ util/mp4track.cpp
+@@ -791,1 +791,1 @@
+-    switch( code ) {
++    switch( static_cast<unsigned int>( code ) ) {
+EOF
+
 listdocs_fn
 
 chown_fn
diff --git a/README.md b/README.md
index cd2e0b1..35567fb 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ If you're curious about what this might involve, [take a look at a sample build
 * TDE_MIRROR= - override the trinitydesktop.org geoIP redirector to use https - example, *https://trinitydesktop.mirrorservice.org/trinity*. URLs @ https://www.trinitydesktop.org/mirrorstatus.php
 * BUILD= - sets the package build identifier, overriding the SlackBuild default of 1
 * USE_CMAKE_MM=yes - to build tdemultimedia with cmake - see Core/tdemultimedia/README.
-* VERBOSE=1 - show command lines during cmake builds
+* VERBOSE=1 - show command lines during cmake builds; and error messages
 
 ---
 
diff --git a/get-source.sh b/get-source.sh
index 3127ea3..85c5a5e 100755
--- a/get-source.sh
+++ b/get-source.sh
@@ -48,9 +48,10 @@ getsource_fn ()
 #   SUCH DAMAGE.
 
 # Place to build (TMP_BUILD) package (PKG) and output (OUTPUT) the program:
-TMP_BUILD=/tmp/build
+## ### moved to BUILD-TDE.sh to export variables for ocaml, facile, gdl, and double-conversion builds
+# ### TMP_BUILD=/tmp/build
 PKG=$TMP_BUILD/package-$PRGNAM
-OUTPUT=/tmp
+# ### OUTPUT=/tmp
 
 # remove any previous builds if option chosen
 [[ $KEEP_BUILD != "yes" ]] && [[ $PRE_DOWNLOAD != yes ]] && echo -e "\n removing previous build data .." && rm -rf $TMP_BUILD/{tmp,package}*
@@ -223,7 +224,7 @@ SLKRCFLAGS="$SLKRCFLAGS -fPIC"
 
 # Exit the script on errors:
 set -e
-trap 'echo "$0 FAILED at line $LINENO" | tee $OUTPUT/error-$PRGNAM.log' ERR
+trap 'echo "$0 FAILED at line $LINENO"' ERR
 # Catch unitialized variables:
 set -u
 P1=${1:-1}