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Dockerfile

@@ -10,8 +10,13 @@ ENV CFLAGS="-static -O2" \
     CXXFLAGS="-static -O2" \
     LDFLAGS="-static"
 
+# Create non-root user
+RUN adduser -D -u 1000 builder
+
 # Install build dependencies
-RUN apk add --no-cache \
+RUN echo "https://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories && \
+    apk update && \
+    apk add --no-cache \
         build-base \
         cmake \
         ninja \
@@ -41,53 +46,25 @@ RUN apk add --no-cache \
         libtool \
         patch \
         gawk \
-        xz-dev
+        xz-dev \
-
+        crosstool-ng
-# Build ncurses from source
-RUN cd /tmp && \
-    wget https://invisible-mirror.net/archives/ncurses/ncurses-6.4.tar.gz && \
-    tar xf ncurses-6.4.tar.gz && \
-    cd ncurses-6.4 && \
-    ./configure --prefix=/usr \
-                --without-shared \
-                --with-normal \
-                --enable-pc-files \
-                --with-pkg-config-libdir=/usr/lib/pkgconfig \
-                --enable-widec \
-                --disable-database \
-                --with-fallbacks=linux \
-                --with-panel \
-                --with-panel-libs && \
-    make -j$(nproc) && \
-    make install && \
-    cd .. && \
-    rm -rf ncurses-6.4*
-
-# Build crosstool-ng
-RUN cd /tmp && \
-    wget https://github.com/crosstool-ng/crosstool-ng/releases/download/crosstool-ng-1.25.0/crosstool-ng-1.25.0.tar.xz && \
-    tar xf crosstool-ng-1.25.0.tar.xz && \
-    cd crosstool-ng-1.25.0 && \
-    export CPPFLAGS="-I/usr/include/ncursesw" && \
-    ./configure --prefix=/usr && \
-    make -j$(nproc) && \
-    make install && \
-    cd .. && \
-    rm -rf crosstool-ng-1.25.0*
 
 # Create crosstool-ng config
 RUN mkdir -p /tmp/ct-ng && \
+    chown -R builder:builder /tmp/ct-ng && \
     cd /tmp/ct-ng && \
-    ct-ng aarch64-unknown-linux-musl && \
+    su builder -c "ct-ng aarch64-unknown-linux-musl" && \
-    sed -i 's/CT_MUSL_VERSION="1.2.4"/CT_MUSL_VERSION="1.2.4"/' .config && \
+    su builder -c "sed -i 's/CT_MUSL_VERSION=\"1.2.4\"/CT_MUSL_VERSION=\"1.2.4\"/' .config" && \
-    sed -i 's/CT_GCC_VERSION="13.1.0"/CT_GCC_VERSION="13.1.0"/' .config && \
+    su builder -c "sed -i 's/CT_GCC_VERSION=\"13.1.0\"/CT_GCC_VERSION=\"13.1.0\"/' .config" && \
-    sed -i 's/CT_BINUTILS_VERSION="2.41"/CT_BINUTILS_VERSION="2.41"/' .config && \
+    su builder -c "sed -i 's/CT_BINUTILS_VERSION=\"2.41\"/CT_BINUTILS_VERSION=\"2.41\"/' .config" && \
-    sed -i 's/CT_LINUX_VERSION="6.1.28"/CT_LINUX_VERSION="6.1.28"/' .config && \
+    su builder -c "sed -i 's/CT_LINUX_VERSION=\"6.1.28\"/CT_LINUX_VERSION=\"6.1.28\"/' .config" && \
-    sed -i 's/CT_PARALLEL_JOBS=0/CT_PARALLEL_JOBS=$(nproc)/' .config
+    su builder -c "sed -i 's/CT_PARALLEL_JOBS=0/CT_PARALLEL_JOBS=$(nproc)/' .config" && \
+    su builder -c "echo 'CT_EXTRA_CFLAGS_FOR_BUILD=\"-D_FILE_OFFSET_BITS=64\"' >> .config" && \
+    su builder -c "echo 'CT_EXTRA_CFLAGS_FOR_HOST=\"-D_FILE_OFFSET_BITS=64\"' >> .config"
 
 # Build the toolchain
 RUN cd /tmp/ct-ng && \
-    ct-ng build
+    su builder -c "unset CFLAGS CXXFLAGS LDFLAGS && ct-ng build"
 
 # Install the toolchain
 RUN mkdir -p /opt/cross && \
@@ -150,7 +127,9 @@ RUN strip --strip-unneeded /usr/local/lib/*.a
 FROM alpine:3.19
 
 # Install core toolchain for building apps
-RUN apk add --no-cache \
+RUN echo "https://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories && \
+    apk update && \
+    apk add --no-cache \
         build-base \
         cmake \
         ninja \
@@ -163,8 +142,7 @@ RUN apk add --no-cache \
         linux-headers \
         ccache \
         mold \
-        ncurses-dev \
+        crosstool-ng
-        ncurses-terminfo-base
 
 # Configure mold as the default linker
 ENV LD=mold