--- a/efivar.SlackBuild	2021-12-13 08:12:59.496650993 +0000
+++ b/efivar.SlackBuild	2021-12-13 08:14:32.984279973 +0000
@@ -59,6 +59,12 @@
 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=""
@@ -85,6 +91,8 @@
   \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
   -exec chmod 644 {} \+
 
+xzcat $CWD/remove-native-march-riscv64.patch.xz | patch -p1 --verbose || exit 1
+
 CFLAGS="$SLKCFLAGS -Wformat=0" \
 CXXFLAGS="$SLKCFLAGS" \
 make $NUMJOBS libdir=/usr/lib$LIBDIRSUFFIX/ mandir=/usr/man/ || exit 1