--- a/qt5-webkit.SlackBuild	2021-03-14 16:58:20.256245511 +0200
+++ b/qt5-webkit.SlackBuild	2021-03-14 17:04:39.175484550 +0200
@@ -63,6 +63,12 @@
 elif [ "$ARCH" = "x86_64" ]; then
   SLKCFLAGS="-O2 -fPIC"
   LIBDIRSUFFIX="64"
+elif [ "$ARCH" = "aarch64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+elif [ "$ARCH" = "riscv64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
 elif [ "$ARCH" = "armv7hl" ]; then
   SLKCFLAGS="-O3 -march=armv7-a -mfpu=vfpv3-d16"
   LIBDIRSUFFIX=""
@@ -99,6 +105,8 @@
 
 # Fix for bison 3.7.x:
 zcat $CWD/qt5-webkit.bison27.patch.gz | patch -p1 --verbose || exit 1
+# Enable RISC-V (riscv64)
+xzcat $CWD/qtwebkit-5.212.0-alpha3-add-riscv.patch.xz | patch -p1 --verbose || exit 1
 
 # -DU_DEFINE_FALSE_AND_TRUE=1 since recent icu4c no longer defines these otherwise.
 
@@ -108,12 +116,16 @@
 export QTDIR="/usr/lib$LIBDIRSUFFIX/qt5"
 export LD_LIBRARY_PATH="${QTDIR}/qtbase/lib:${QTDIR}/qttools/lib:${LD_LIBRARY_PATH}"
 
+# riscv64
+[[ $ARCH == "riscv64" ]] && OPTIONS="-DENABLE_JIT=OFF -DTHREADS_PREFER_PTHREAD_FLAG:BOOL=YES"
+
 # Configure, build, and install:
 mkdir qtwebkit-build
 cd qtwebkit-build
   cmake \
     -DPORT=Qt \
     -DQt5_DIR=$QTDIR \
+    $OPTIONS \
     ..  || exit 1
   make $NUMJOBS || make || exit 1
   make install DESTDIR=$PKG || exit 1