diff --git a/ci/runners/linux/provision.sh b/ci/runners/linux/provision.sh
index 606c90b70..2889b97d9 100755
--- a/ci/runners/linux/provision.sh
+++ b/ci/runners/linux/provision.sh
@@ -79,6 +79,7 @@ export DEBIAN_FRONTEND=noninteractive
 apt-get update -qq
 apt-get install -y --no-install-recommends \
     build-essential clang gcc g++ cmake ninja-build pkg-config nasm yasm \
+    autoconf automake libtool \
     libgtk-3-dev libayatana-appindicator3-dev \
     libasound2-dev libpulse-dev libpam0g-dev libssl-dev \
     libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev \
@@ -173,6 +174,11 @@ chown -R "$SERVICE_USER:$SERVICE_USER" "$FLUTTER_DIR"
 chown -R "$SERVICE_USER:$SERVICE_USER" "$VCPKG_DIR"
 # LLVM: read+execute is enough; we never write here at build time.
 chown -R "$SERVICE_USER:$SERVICE_USER" "$LLVM_DIR"
+# /opt/cargo-tools: workflow installs cargo-expand and flutter_rust_bridge_codegen
+# here via `cargo install --root`. Pre-create with the right owner so the first
+# job doesn't try to mkdir under root-owned /opt.
+mkdir -p /opt/cargo-tools
+chown -R "$SERVICE_USER:$SERVICE_USER" /opt/cargo-tools
 
 # git "dubious ownership": same fix as Windows. Trust system-wide.
 git config --system --add safe.directory '*' || true
diff --git a/res/vcpkg/mfx-dispatch/portfile.cmake b/res/vcpkg/mfx-dispatch/portfile.cmake
index cb2ad7e7c..2b2fc6435 100644
--- a/res/vcpkg/mfx-dispatch/portfile.cmake
+++ b/res/vcpkg/mfx-dispatch/portfile.cmake
@@ -18,6 +18,20 @@ vcpkg_from_github(
         ${MISSING_CSTDINT_IMPORT_PATCH}
 )
 
+# autotools 1.17+ (Debian 13, Ubuntu 24.04+) doesn't trace the deprecated
+# `AC_PROG_LIBTOOL` for libtoolize, so the libtool m4 macros never get pulled
+# in and automake fails with "Libtool library used but 'LIBTOOL' is undefined".
+# Swap to the modern `LT_INIT` macro at extract time so this works on any
+# distro. No-op on hosts that already have AC_PROG_LIBTOOL working.
+if(EXISTS "${SOURCE_PATH}/configure.ac")
+    file(READ "${SOURCE_PATH}/configure.ac" _mfx_configure_ac)
+    string(REPLACE "AC_PROG_LIBTOOL" "LT_INIT" _mfx_configure_ac_patched "${_mfx_configure_ac}")
+    if(NOT _mfx_configure_ac STREQUAL _mfx_configure_ac_patched)
+        file(WRITE "${SOURCE_PATH}/configure.ac" "${_mfx_configure_ac_patched}")
+        message(STATUS "mfx-dispatch: replaced AC_PROG_LIBTOOL with LT_INIT for autotools >= 1.17")
+    endif()
+endif()
+
 if(VCPKG_TARGET_IS_WINDOWS AND NOT VCPKG_TARGET_IS_MINGW)
     vcpkg_cmake_configure(
         SOURCE_PATH "${SOURCE_PATH}"