diff --git a/builder/dockerfile.opensuse_15.build b/builder/dockerfile.opensuse_15.build
index 954ada8..800c752 100644
--- a/builder/dockerfile.opensuse_15.build
+++ b/builder/dockerfile.opensuse_15.build
@@ -45,7 +45,10 @@ RUN zypper install -ny \
   xorg-x11-util-devel \
   zlib-devel
 
-RUN update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++-14 100
+RUN update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-14 140 \
+  --slave /usr/bin/g++ g++ /usr/bin/g++-14 \
+  --slave /usr/bin/gcov gcov /usr/bin/gcov-14
+
 
 RUN useradd -u 1000 docker && \
   groupadd -g 1000 docker && \
diff --git a/builder/scripts/build-webp b/builder/scripts/build-webp
index a6b2fd0..e5e19f1 100755
--- a/builder/scripts/build-webp
+++ b/builder/scripts/build-webp
@@ -2,7 +2,7 @@
 
 set -euo pipefail
 
-WEBP_VERSION="1.2.4"
+WEBP_VERSION="1.5.0"
 WEBP_TAR_URL="https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-${WEBP_VERSION}.tar.gz"
 WEBP_TAR_FILE="/tmp/libwebp-${WEBP_VERSION}.tar.gz"
 WEBP_SRC_DIR="/tmp/libwebp-${WEBP_VERSION}"
@@ -21,7 +21,7 @@ prepare_source() {
 
 build_and_install() {
   export MAKEFLAGS=-j$(nproc)
-  ./configure --enable-static --disable-shared
+  ./configure --enable-static --disable-shared --enable-threading --enable-sse2 --enable-neon
   make
   make install
 }
diff --git a/unix/xserver/hw/vnc/Makefile.am b/unix/xserver/hw/vnc/Makefile.am
index a25d214..c3226eb 100644
--- a/unix/xserver/hw/vnc/Makefile.am
+++ b/unix/xserver/hw/vnc/Makefile.am
@@ -52,7 +52,7 @@ Xvnc_CPPFLAGS = $(XVNC_CPPFLAGS) -DKASMVNC -DNO_MODULE_EXTS \
 	-I$(top_srcdir)/dri3 @LIBDRM_CFLAGS@
 
 Xvnc_LDADD = $(XVNC_LIBS) libvnccommon.la $(COMMON_LIBS) \
-	$(XSERVER_LIBS) $(XSERVER_SYS_LIBS) $(XVNC_SYS_LIBS) -lX11 -lwebp -lssl -lcrypto -lcrypt \
+	$(XSERVER_LIBS) $(XSERVER_SYS_LIBS) $(XVNC_SYS_LIBS) -lX11 -lwebp -lsharpyuv -lssl -lcrypto -lcrypt \
 	-lfreetype
 
 Xvnc_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG) -fopenmp