--- a/lensfun.SlackBuild	2021-02-13 03:30:47.971198081 +0200
+++ b/lensfun.SlackBuild	2021-02-13 03:31:20.095179982 +0200
@@ -60,6 +60,12 @@
 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=""
@@ -86,6 +92,9 @@
   \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
   -exec chmod 644 {} \+
 
+# Fix null pointer dereference # https://github.com/lensfun/lensfun/issues/1132
+xzcat $CWD/lensfun-segfault.patch.xz | patch -p1 --verbose || exit 1
+
 # Configure, build, and install:
 mkdir cmake-build
 cd cmake-build
@@ -93,13 +102,13 @@
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
     -DCMAKE_C_FLAGS_RELEASE:STRING="$SLKCFLAGS" \
-    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS -fno-delete-null-pointer-checks" \
     -DCMAKE_CXX_FLAGS_RELEASE:STRING="$SLKCFLAGS" \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DLIB_SUFFIX=${LIBDIRSUFFIX} \
     -DBUILD_LENSTOOL=ON \
-    -DBUILD_FOR_SSE=ON \
-    -DBUILD_FOR_SSE2=ON \
+    -DBUILD_FOR_SSE=OFF \
+    -DBUILD_FOR_SSE2=OFF \
     -DBUILD_TESTS=OFF \
     -DINSTALL_HELPER_SCRIPTS=ON \
     .. || exit 1