--- a/cpufrequtils.SlackBuild	2021-02-10 17:14:48.302078803 +0200
+++ b/cpufrequtils.SlackBuild	2021-02-10 17:15:27.562051024 +0200
@@ -58,6 +58,12 @@
 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"
 else
   SLKCFLAGS="-O2"
   LIBDIRSUFFIX=""
@@ -76,6 +82,8 @@
   \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
   -exec chmod 644 {} \+
 
+xzcat $CWD/0001-Only-x86-has-cpuid-instruction.patch.xz | patch -p1 --verbose || exit 1
+
 # Build and install:
 make libdir=/usr/lib${LIBDIRSUFFIX} || exit 1
 make install libdir=/usr/lib${LIBDIRSUFFIX} DESTDIR=$PKG || exit 1