Update Dockerfile

Dockerfile

@@ -1,15 +1,38 @@
-FROM centos:7
-
-RUN sed -i \
-    -e 's/^mirrorlist/#mirrorlist/' \
-    -e 's/^#baseurl/baseurl/' \
-    -e 's/mirror\.centos\.org/vault.centos.org/' \
-    /etc/yum.repos.d/*.repo && \
-    yum -y -q install \
-        libXpm net-tools bzip2 wget vim gcc gcc-c++ samba dos2unix glibc-devel glibc.i686 glibc-devel.i686 \
-        mpfr.i686 mpfr-devel.i686 rsync autogen autoconf automake libtool gettext* bison binutils \
-        flex device-mapper-devel SDL libpciaccess libusb freetype freetype-devel gnu-free-* qemu-* virt-* \
-        libvirt* vte* NetworkManager-bluetooth brlapi fuse-devel dejavu* gnu-efi* pesign shim \
-        iscsi-initiator-utils grub2-tools zip nasm acpica-tools glibc-static zlib-static xorriso lz4 squashfs-tools
-
-CMD cd /ventoy/INSTALL && ls -la && sh docker_ci_build.sh    
+# Modern Ventoy builder - AlmaLinux 9 (replaces dead CentOS 7)
+FROM almalinux:9 AS builder
+
+RUN dnf update -y && \
+    dnf install -y epel-release && \
+    dnf install -y \
+        gcc gcc-c++ make git tar bzip2 patch perl findutils \
+        glibc-devel glibc-devel.i686 \
+        gcc-aarch64-linux-gnu binutils-aarch64-linux-gnu \
+        gcc-riscv64-linux-gnu binutils-riscv64-linux-gnu \
+        clang lld llvm llvm-devel llvm-static \
+        mingw64-gcc mingw64-binutils mingw64-cpp \
+        mingw64-llvm mingw64-llvm-static mingw64-llvm-tools \   # <-- This is what you wanted
+        python3 python3-pip python3-devel \
+        qemu virt-* libvirt* fuse-devel dejavu-sans-fonts \
+        gnu-efi nasm acpica-tools xz bzip2-devel \
+        && dnf clean all
+
+# cmake-converter (for any old VS project conversions)
+# cross compilation via cmake n clang 
+RUN pip3 install cmake-converter
+
+# Full llvm-mingw (pure Clang-based MinGW cross, including static libs)
+# Latest as of early April 2026 — update the version when a newer release drops
+ARG LLVM_MINGW_VERSION=20250401
+RUN curl -L -o /tmp/llvm-mingw.tar.xz \
+    https://github.com/mstorsjo/llvm-mingw/releases/download/\( {LLVM_MINGW_VERSION}/llvm-mingw- \){LLVM_MINGW_VERSION}-ucrt-ubuntu-20.04-x86_64.tar.xz && \
+    mkdir -p /opt/llvm-mingw && \
+    tar -xf /tmp/llvm-mingw.tar.xz -C /opt/llvm-mingw --strip-components=1 && \
+    rm -f /tmp/llvm-mingw.tar.xz
+
+ENV PATH="/opt/llvm-mingw/bin:${PATH}"
+
+WORKDIR /ventoy
+COPY . /ventoy
+
+# Default: run iPXE build (override with docker compose or docker run)
+CMD ["bash", "-c", "cd IPXE && ./buildipxe.sh"]