Fix build scripts to be able to build with linuxarm64 image

scripts.d/25-fftw3.sh

@@ -29,11 +29,16 @@ ffbuild_dockerbuild() {
         --enable-threads
         --with-combined-threads
         --with-incoming-stack-boundary=2
-        --enable-sse2
-        --enable-avx
-        --enable-avx2
     )
 
+    if [[ $TARGET != linuxarm64 ]]; then
+        myconf+=(
+            --enable-sse2
+            --enable-avx
+            --enable-avx2
+        )
+    fi
+
     if [[ $TARGET == win* || $TARGET == linux* ]]; then
         myconf+=(
             --host="$FFBUILD_TOOLCHAIN"

scripts.d/25-openssl.sh

@@ -36,6 +36,11 @@ ffbuild_dockerbuild() {
             --cross-compile-prefix="$FFBUILD_CROSS_PREFIX"
             linux-x86_64
         )
+    elif [[ $TARGET == linuxarm64 ]]; then
+        myconf+=(
+            --cross-compile-prefix="$FFBUILD_CROSS_PREFIX"
+            linux-aarch64
+        )
     else
         echo "Unknown target"
         return -1

scripts.d/50-libvpx.sh

@@ -32,11 +32,16 @@ ffbuild_dockerbuild() {
             --target=x86-win32-gcc
         )
         export CROSS="$FFBUILD_CROSS_PREFIX"
-    elif [[ $TARGET == linux* ]]; then
+    elif [[ $TARGET == linux64 ]]; then
         myconf+=(
             --target=x86_64-linux-gcc
         )
         export CROSS="$FFBUILD_CROSS_PREFIX"
+    elif [[ $TARGET == linuxarm64 ]]; then
+        myconf+=(
+            --target=arm64-linux-gcc
+        )
+        export CROSS="$FFBUILD_CROSS_PREFIX"
     else
         echo "Unknown target"
         return -1

scripts.d/50-openh264.sh

@@ -37,6 +37,11 @@ ffbuild_dockerbuild() {
             OS=linux
             ARCH=x86_64
         )
+    elif [[ $TARGET == linuxarm64 ]]; then
+        myconf+=(
+            OS=linux
+            ARCH=aarch64
+        )
     else
         echo "Unknown target"
         return -1

scripts.d/50-rav1e.sh

@@ -25,6 +25,12 @@ ffbuild_dockerbuild() {
         )
     fi
 
+    # For some reason, RUSTFLAGS, CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER,
+    # and .cargo/config.toml can't work, so have to put a symbolic link
+    if [[ $TARGET == linuxarm64 ]]; then
+        ln -s /opt/ct-ng/bin/aarch64-ffbuild-linux-gnu-gcc /opt/ct-ng/bin/aarch64-linux-gnu-gcc
+    fi
+
     cargo cinstall "${myconf[@]}"
 }
 

scripts.d/50-vidstab.sh

@@ -15,7 +15,12 @@ ffbuild_dockerbuild() {
 
     mkdir build && cd build
 
-    cmake -DCMAKE_TOOLCHAIN_FILE="$FFBUILD_CMAKE_TOOLCHAIN" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="$FFBUILD_PREFIX" -DBUILD_SHARED_LIBS=OFF -DUSE_OMP=ON ..
+    local disable_sse2=""
+    if [[ $TARGET == linuxarm64 ]]; then
+        disable_sse2=-DSSE2_FOUND=FALSE
+    fi
+
+    cmake -DCMAKE_TOOLCHAIN_FILE="$FFBUILD_CMAKE_TOOLCHAIN" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="$FFBUILD_PREFIX" -DBUILD_SHARED_LIBS=OFF -DUSE_OMP=ON $disable_sse2 ..
     make -j$(nproc)
     make install