add fully static Linux x64 build

.github/workflows/release.yml

@@ -62,6 +62,60 @@ jobs:
         name: linux-x64
         path: build/p2pool-salvium-v${{ inputs.version }}-linux-x64.tar.gz
 
+  build-linux-x64-static:
+    runs-on: ubuntu-22.04
+    steps:
+    - uses: jirutka/setup-alpine@v1
+      with:
+        arch: x86_64
+        branch: latest-stable
+
+    - name: Install dependencies
+      shell: alpine.sh --root {0}
+      run: |
+        apk add git cmake gcc g++ make linux-headers xz
+
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
+
+    - name: Build libcurl
+      shell: alpine.sh {0}
+      run: |
+        cd external/src/curl
+        cmake . -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS="-Os -flto=auto -ffunction-sections" -DBUILD_CURL_EXE=OFF -DBUILD_SHARED_LIBS=OFF -DCURL_DISABLE_INSTALL=ON -DCURL_ENABLE_EXPORT_TARGET=OFF -DCURL_DISABLE_HEADERS_API=ON -DCURL_DISABLE_BINDLOCAL=ON -DBUILD_LIBCURL_DOCS=OFF -DBUILD_MISC_DOCS=OFF -DENABLE_CURL_MANUAL=OFF -DCURL_ZLIB=OFF -DCURL_BROTLI=OFF -DCURL_ZSTD=OFF -DCURL_DISABLE_ALTSVC=ON -DCURL_DISABLE_COOKIES=ON -DCURL_DISABLE_DOH=ON -DCURL_DISABLE_GETOPTIONS=ON -DCURL_DISABLE_HSTS=ON -DCURL_DISABLE_LIBCURL_OPTION=ON -DCURL_DISABLE_MIME=ON -DCURL_DISABLE_NETRC=ON -DCURL_DISABLE_NTLM=ON -DCURL_DISABLE_PARSEDATE=ON -DCURL_DISABLE_PROGRESS_METER=ON -DCURL_DISABLE_SHUFFLE_DNS=ON -DCURL_DISABLE_SOCKETPAIR=ON -DCURL_DISABLE_VERBOSE_STRINGS=ON -DCURL_DISABLE_WEBSOCKETS=ON -DHTTP_ONLY=ON -DCURL_ENABLE_SSL=OFF -DUSE_LIBIDN2=OFF -DCURL_USE_LIBPSL=OFF -DCURL_USE_LIBSSH2=OFF -DENABLE_UNIX_SOCKETS=OFF -DCURL_DISABLE_TESTS=ON -DUSE_NGHTTP2=OFF -DBUILD_EXAMPLES=OFF -DP2POOL_BORINGSSL=ON -DCURL_DISABLE_SRP=ON -DCURL_DISABLE_AWS=ON -DCURL_DISABLE_BASIC_AUTH=ON -DCURL_DISABLE_BEARER_AUTH=ON -DCURL_DISABLE_KERBEROS_AUTH=ON -DCURL_DISABLE_NEGOTIATE_AUTH=ON -DOPENSSL_INCLUDE_DIR=../grpc/third_party/boringssl-with-bazel/include
+        make -j$(nproc)
+
+    - name: Build libuv
+      shell: alpine.sh {0}
+      run: |
+        cd external/src/libuv
+        mkdir build && cd build
+        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS="-Os -flto=auto -ffunction-sections" -DBUILD_TESTING=OFF -DLIBUV_BUILD_SHARED=OFF
+        make -j$(nproc)
+
+    - name: Build libzmq
+      shell: alpine.sh {0}
+      run: |
+        cd external/src/libzmq
+        mkdir build && cd build
+        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_POLICY_VERSION_MINIMUM="3.5" -DCMAKE_C_FLAGS="-Os -flto=auto -ffunction-sections" -DCMAKE_CXX_FLAGS="-Os -flto=auto -ffunction-sections" -DWITH_LIBSODIUM=OFF -DWITH_LIBBSD=OFF -DBUILD_TESTS=OFF -DWITH_DOCS=OFF -DENABLE_DRAFTS=OFF -DBUILD_SHARED=OFF
+        make -j$(nproc)
+
+    - name: Build p2pool
+      shell: alpine.sh {0}
+      run: |
+        mkdir build && cd build
+        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_POLICY_VERSION_MINIMUM="3.5" -DCMAKE_C_FLAGS="-ffunction-sections -Wl,-s -Wl,--gc-sections" -DCMAKE_CXX_FLAGS="-ffunction-sections -Wl,-s -Wl,--gc-sections" -DWITH_GRPC=OFF -DSTATIC_BINARY=ON
+        make -j$(nproc) p2pool-salvium
+        ./p2pool-salvium --test
+        tar -czf p2pool-salvium-v${{ inputs.version }}-linux-x64-static.tar.gz p2pool-salvium
+
+    - uses: actions/upload-artifact@v4
+      with:
+        name: linux-x64-static
+        path: build/p2pool-salvium-v${{ inputs.version }}-linux-x64-static.tar.gz
+
   build-linux-aarch64:
     runs-on: ubuntu-22.04
     steps:
@@ -304,7 +358,7 @@ jobs:
         path: build/p2pool-salvium-v${{ inputs.version }}-windows-x64.zip
 
   create-checksums:
-    needs: [build-linux-x64, build-linux-aarch64, build-linux-riscv64, build-macos-x64, build-macos-aarch64, build-windows-x64]
+    needs: [build-linux-x64, build-linux-x64-static, build-linux-aarch64, build-linux-riscv64, build-macos-x64, build-macos-aarch64, build-windows-x64]
     runs-on: ubuntu-latest
     steps:
     - name: Checkout source
@@ -356,7 +410,8 @@ jobs:
           ### Downloads
           | Platform | Architecture | File |
           |----------|--------------|------|
-          | Linux | x64 | `p2pool-salvium-v${{ inputs.version }}-linux-x64.tar.gz` |
+          | Linux | x64 (glibc) | `p2pool-salvium-v${{ inputs.version }}-linux-x64.tar.gz` |
+          | Linux | x64 (static/musl) | `p2pool-salvium-v${{ inputs.version }}-linux-x64-static.tar.gz` |
           | Linux | aarch64 | `p2pool-salvium-v${{ inputs.version }}-linux-aarch64.tar.gz` |
           | Linux | riscv64 | `p2pool-salvium-v${{ inputs.version }}-linux-riscv64.tar.gz` |
           | macOS | x64 (Intel) | `p2pool-salvium-v${{ inputs.version }}-macos-x64.tar.gz` |