build with ubuntu 18.04

.dockerignore

@@ -0,0 +1,3 @@
+**/.git
+cb/bld/bin
+cb/bld/obj

.github/workflows/build.yml

@@ -11,10 +11,10 @@ on:
     - 'bld/bin/**'
 
 jobs:
-  build:
+  build-win-mac:
     strategy:
       matrix:
-        os: [ubuntu-20.04, macos-13, windows-2019]
+        os: [macos-13, windows-2019]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v4
@@ -25,14 +25,6 @@ jobs:
         repository: libtom/libtomcrypt
         path: "libtomcrypt"
         ref: "v1.18.2"
-    - name: Setup cross compilers
-      if: startsWith(matrix.os, 'ubuntu')
-      run: ./cb/bld/setup_linux.sh
-    - name: Setup NDK
-      if: startsWith(matrix.os, 'ubuntu')
-      uses: nttld/setup-ndk@v1
-      with:
-        ndk-version: r21e
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
       with:
@@ -44,29 +36,77 @@ jobs:
       run: chmod +x *.sh 
       working-directory: cb/bld
     - name: Clean output directory
-      if: startsWith(matrix.os, 'ubuntu') || startsWith(matrix.os, 'macos')
+      if: startsWith(matrix.os, 'macos')
       run: rm -fr bin
       working-directory: cb/bld
     - name: Clean output directory
       if: startsWith(matrix.os, 'windows')
       run: rm bin -r -fo
       working-directory: cb/bld
-    - name: Build (Linux)
-      if: startsWith(matrix.os, 'ubuntu')
+    - name: Build (macOS, iOS, tvOS)
+      if: startsWith(matrix.os, 'macos')
       run: |
-        #!/bin/bash
-        export PATH="$PWD/../../crosscompilers/bin:$PATH"
         set -e
-        for f in linux_*.sh; do
-          if [[ "$f" == *_cross.sh ]] || [[ "$f" == *_regular.sh ]]
-          then
-            continue
-          fi
+        for f in mac_*.sh maccatalyst_*.sh ios_*.sh tvos_*.sh; do
           bash "$f"
         done
       working-directory: cb/bld
+    - name: Build (Windows)
+      if: startsWith(matrix.os, 'windows')
+      run: |
+        $files = Get-ChildItem *.bat -Exclude "win_e_sqlite3.bat","win_e_sqlite3mc.bat","win_e_sqlcipher.bat","win_sqlite3mc.bat"
+        foreach ($f in $files) {
+          cmd /C $f
+        }
+      working-directory: cb/bld
+    - uses: actions/upload-artifact@v4
+      with:
+        name: bin-${{ matrix.os }}
+        path: cb/bld/bin
+
+  build-linux:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        path: "cb"
+    - uses: actions/checkout@v4
+      with:
+        repository: libtom/libtomcrypt
+        path: "libtomcrypt"
+        ref: "v1.18.2"
+    - name: Setup Docker Buildx
+      uses: docker/setup-buildx-action@v3
+      with:
+        install: true
+    - name: Setup NDK
+      uses: nttld/setup-ndk@v1
+      with:
+        ndk-version: r21e
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: 8.0
+    - name: Generate script
+      run: dotnet run
+      working-directory: cb/bld
+    - name: Update permissions
+      run: chmod +x *.sh 
+      working-directory: cb/bld
+    - name: Clean output directory
+      run: rm -fr bin
+      working-directory: cb/bld
+    - name: Build (Linux)
+      run: >
+        mv ./cb/.dockerignore . &&
+        docker buildx build
+        --output=type=local,dest=.
+        --cache-to type=gha
+        --cache-from type=gha
+        --build-arg TOOLCHAIN_RELEASE_BASE_URL=https://github.com/${{ github.repository }}/releases/download/crosscompilers
+        -f ./cb/Dockerfile
+        .
     - name: Build (Android)
-      if: startsWith(matrix.os, 'ubuntu')
       run: |
         set -e
         cd android_e_sqlite3
@@ -86,25 +126,9 @@ jobs:
         mkdir -p ../bin/sqlite3mc/android
         cp -r libs/* ../bin/sqlite3mc/android
       working-directory: cb/bld
-    - name: Build (macOS, iOS, tvOS)
-      if: startsWith(matrix.os, 'macos')
-      run: |
-        set -e
-        for f in mac_*.sh maccatalyst_*.sh ios_*.sh tvos_*.sh; do
-          bash "$f"
-        done
-      working-directory: cb/bld
-    - name: Build (Windows)
-      if: startsWith(matrix.os, 'windows')
-      run: |
-        $files = Get-ChildItem *.bat -Exclude "win_e_sqlite3.bat","win_e_sqlite3mc.bat","win_e_sqlcipher.bat","win_sqlite3mc.bat"
-        foreach ($f in $files) {
-          cmd /C $f
-        }
-      working-directory: cb/bld
     - uses: actions/upload-artifact@v4
       with:
-        name: bin-${{ matrix.os }}
+        name: bin-linux
         path: cb/bld/bin
 
   build-wasm:
@@ -116,7 +140,7 @@ jobs:
         - '{ "tfm": "net7.0", "emsdk": "3.1.12" }' # eol: 2024-05-14
         - '{ "tfm": "net8.0", "emsdk": "3.1.34" }' # eol: 2026-11-14
         - '{ "tfm": "net9.0", "emsdk": "3.1.56" }' # eol: 2026-05-12
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
       with:
@@ -157,7 +181,7 @@ jobs:
         path: cb/bld/bin
 
   test:
-    needs: [ build, build-wasm]
+    needs: [ build-linux, build-win-mac, build-wasm]
     if: ${{ github.event_name == 'pull_request' }}
     strategy:
       matrix:
@@ -183,7 +207,7 @@ jobs:
       working-directory: cb/bld
     - uses: actions/download-artifact@v4
       with:
-        name: bin-ubuntu-20.04
+        name: bin-linux
         path: cb/bld/bin
     - uses: actions/download-artifact@v4
       with:
@@ -235,9 +259,9 @@ jobs:
         dotnet run
 
   publish:
-    needs: [ build, build-wasm ]
+    needs: [ build-linux, build-win-mac, build-wasm ]
     if: ${{ github.event_name == 'push' }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
       with:
@@ -251,7 +275,7 @@ jobs:
       working-directory: bld
     - uses: actions/download-artifact@v4
       with:
-        name: bin-ubuntu-20.04
+        name: bin-linux
         path: bld/bin
     - uses: actions/download-artifact@v4
       with:

.gitignore

@@ -0,0 +1 @@
+bld/obj

Dockerfile

@@ -0,0 +1,68 @@
+FROM ubuntu:18.04 AS build
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV TZ=Etc/UTC
+ENV LC_ALL=C.UTF-8
+ENV LANG=C.UTF-8   
+
+# Setup cross compilers
+RUN dpkg --add-architecture i386 && \
+    apt-get -y update && \
+    apt-get install --allow-downgrades -y \
+    wget \
+    linux-libc-dev:i386 \
+    gcc-7-multilib \
+    gcc-arm-linux-gnueabi \
+    gcc-arm-linux-gnueabihf \
+    musl-dev musl-tools \
+    gcc-aarch64-linux-gnu \
+    gcc-mips64el-linux-gnuabi64 \
+    gcc-s390x-linux-gnu \
+    # gcc-powerpc64le-linux-gnu \
+    gcc-riscv64-linux-gnu
+
+WORKDIR /a/crosscompilers
+
+ARG TOOLCHAIN_RELEASE_BASE_URL
+
+RUN wget -q ${TOOLCHAIN_RELEASE_BASE_URL}/arm-linux-musleabihf-cross.tgz && \
+    # wget https://musl.cc/arm-linux-musleabihf-cross.tgz
+    # wget https://ericsink.com/arm-linux-musleabihf-cross.tgz
+    tar --strip-components=1 -zxf ./arm-linux-musleabihf-cross.tgz && \
+    wget -q ${TOOLCHAIN_RELEASE_BASE_URL}/aarch64-linux-musl-cross.tgz && \
+    # wget https://musl.cc/aarch64-linux-musl-cross.tgz
+    # wget https://ericsink.com/aarch64-linux-musl-cross.tgz
+    tar --strip-components=1 -zxf aarch64-linux-musl-cross.tgz && \
+    wget -q ${TOOLCHAIN_RELEASE_BASE_URL}/s390x-linux-musl-cross.tgz && \
+    # wget https://musl.cc/s390x-linux-musl-cross.tgz
+    tar --strip-components=1 -zxf s390x-linux-musl-cross.tgz && \
+    wget -q ${TOOLCHAIN_RELEASE_BASE_URL}/riscv64-linux-musl-cross.tgz && \
+    # wget https://musl.cc/riscv64-linux-musl-cross.tgz
+    tar --strip-components=1 -zxf riscv64-linux-musl-cross.tgz && \
+    wget -q ${TOOLCHAIN_RELEASE_BASE_URL}/powerpc64le-power8--glibc--stable-2024.05-1.tar.xz && \
+    # wget https://toolchains.bootlin.com/downloads/releases/toolchains/powerpc64le-power8/tarballs/powerpc64le-power8--glibc--stable-2024.05-1.tar.xz
+    tar --strip-components=1 -xJf powerpc64le-power8--glibc--stable-2024.05-1.tar.xz
+
+WORKDIR /a
+
+COPY --link . .
+
+WORKDIR /a/cb/bld
+
+SHELL ["/bin/bash", "-c"]
+
+# run build scripts
+RUN export PATH="$PWD/../../crosscompilers/bin:$PATH" && \
+    set -e && \
+    for f in linux_*.sh; do \
+        if [[ "$f" == *_cross.sh ]] || [[ "$f" == *_regular.sh ]]; \
+        then \
+            continue; \
+        fi; \
+        bash "$f"; \
+    done
+
+# pull end build products out into scratch image to simplify extraction  
+FROM scratch
+
+COPY --from=build /a/cb/bld /cb/bld

bld/cb.cs

@@ -166,7 +166,7 @@ IList<string> libs
 					break;
 
 				case "ppc64le":
-					compiler = "powerpc64le-linux-gnu-gcc";
+					compiler = "powerpc64le-linux-gcc";
 					break;
 
 				case "armhf":