Initial commit of working code

Dockerfile

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+FROM debian:buster-slim
+
+ARG VERSION=1.0.0
+ARG PREFIX=/w64devkit-$VERSION
+
+ARG BINUTILS_VERSION=2.34
+ARG BUSYBOX_VERSION=FRP-3445-g10e14d5eb
+ARG GCC_VERSION=10.1.0
+ARG GMP_VERSION=6.2.0
+ARG MAKE_VERSION=4.2
+ARG MINGW_VERSION=6.0.0
+ARG MPC_VERSION=1.1.0
+ARG MPFR_VERSION=4.0.2
+
+RUN apt-get update && apt-get install --yes --no-install-recommends \
+  build-essential curl file libgmp-dev libmpc-dev libmpfr-dev m4 texinfo zip
+
+# Download, verify, and unpack
+
+RUN curl --insecure --location --remote-name-all \
+    https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS_VERSION.tar.xz \
+    https://ftp.gnu.org/gnu/gcc/gcc-10.1.0/gcc-$GCC_VERSION.tar.xz \
+    https://ftp.gnu.org/gnu/gmp/gmp-$GMP_VERSION.tar.xz \
+    https://ftp.gnu.org/gnu/mpc/mpc-$MPC_VERSION.tar.gz \
+    https://ftp.gnu.org/gnu/mpfr/mpfr-$MPFR_VERSION.tar.xz \
+    https://ftp.gnu.org/gnu/make/make-$MAKE_VERSION.tar.gz \
+    https://frippery.org/files/busybox/busybox-w32-$BUSYBOX_VERSION.tgz \
+    https://downloads.sourceforge.net/project/mingw-w64/mingw-w64/mingw-w64-release/mingw-w64-v$MINGW_VERSION.tar.bz2
+COPY SHA256SUMS .
+RUN sha256sum -c SHA256SUMS \
+ && tar xJf binutils-$BINUTILS_VERSION.tar.xz \
+ && tar xzf busybox-w32-$BUSYBOX_VERSION.tgz \
+ && tar xJf gcc-$GCC_VERSION.tar.xz \
+ && tar xJf gmp-$GMP_VERSION.tar.xz \
+ && tar xzf mpc-$MPC_VERSION.tar.gz \
+ && tar xJf mpfr-$MPFR_VERSION.tar.xz \
+ && tar xzf make-$MAKE_VERSION.tar.gz \
+ && tar xjf mingw-w64-v$MINGW_VERSION.tar.bz2
+
+# Build cross-compiler
+
+WORKDIR /x-binutils
+RUN /binutils-$BINUTILS_VERSION/configure \
+        --prefix=/bootstrap \
+        --with-sysroot=/bootstrap \
+        --target=x86_64-w64-mingw32 \
+        --disable-nls \
+        --enable-static \
+        --disable-shared \
+        --disable-multilib
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /x-mingw-headers
+RUN /mingw-w64-v$MINGW_VERSION/mingw-w64-headers/configure \
+        --prefix=/bootstrap/x86_64-w64-mingw32 \
+        --host=x86_64-w64-mingw32
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /bootstrap
+RUN ln -s x86_64-w64-mingw32 mingw
+
+WORKDIR /x-gcc
+RUN /gcc-$GCC_VERSION/configure \
+        --prefix=/bootstrap \
+        --with-sysroot=/bootstrap \
+        --target=x86_64-w64-mingw32 \
+        --enable-static \
+        --disable-shared \
+        --enable-languages=c,c++ \
+        --enable-libgomp \
+        --enable-threads=win32 \
+        --enable-version-specific-runtime-libs \
+        --disable-nls \
+        --disable-multilib
+RUN make -j$(nproc) all-gcc
+RUN make install-gcc
+
+ENV PATH="/bootstrap/bin:${PATH}"
+
+WORKDIR /x-mingw-crt
+RUN /mingw-w64-v$MINGW_VERSION/mingw-w64-crt/configure \
+        --prefix=/bootstrap/x86_64-w64-mingw32 \
+        --with-sysroot=/bootstrap/x86_64-w64-mingw32 \
+        --host=x86_64-w64-mingw32
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /x-winpthreads
+RUN /mingw-w64-v$MINGW_VERSION/mingw-w64-libraries/winpthreads/configure \
+        --prefix=/bootstrap/x86_64-w64-mingw32 \
+        --with-sysroot=/bootstrap/x86_64-w64-mingw32 \
+        --host=x86_64-w64-mingw32 \
+        --enable-static \
+        --disable-shared
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /x-gcc
+RUN make -j$(nproc)
+RUN make install
+
+# Cross-compile GCC
+
+WORKDIR /
+WORKDIR /binutils
+RUN /binutils-$BINUTILS_VERSION/configure \
+        --prefix=$PREFIX \
+        --with-sysroot=$PREFIX \
+        --host=x86_64-w64-mingw32 \
+        --target=x86_64-w64-mingw32 \
+        --disable-nls \
+        --enable-static \
+        --disable-shared \
+        CFLAGS="-Os" \
+        LDFLAGS="-s"
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /
+WORKDIR /gmp
+RUN /gmp-$GMP_VERSION/configure \
+        --prefix=/deps \
+        --host=x86_64-w64-mingw32 \
+        --disable-assembly \
+        --enable-static \
+        --disable-shared \
+        CFLAGS="-Os" \
+        LDFLAGS="-s"
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /
+WORKDIR /mpfr
+RUN /mpfr-$MPFR_VERSION/configure \
+        --prefix=/deps \
+        --host=x86_64-w64-mingw32 \
+        --with-gmp-include=/deps/include \
+        --with-gmp-lib=/deps/lib \
+        --enable-static \
+        --disable-shared \
+        CFLAGS="-Os" \
+        LDFLAGS="-s"
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /
+WORKDIR /mpc
+RUN /mpc-$MPC_VERSION/configure \
+        --prefix=/deps \
+        --host=x86_64-w64-mingw32 \
+        --with-gmp-include=/deps/include \
+        --with-gmp-lib=/deps/lib \
+        --with-mpfr-include=/deps/include \
+        --with-mpfr-lib=/deps/lib \
+        --enable-static \
+        --disable-shared \
+        CFLAGS="-Os" \
+        LDFLAGS="-s"
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /
+WORKDIR /mingw-headers
+RUN /mingw-w64-v$MINGW_VERSION/mingw-w64-headers/configure \
+        --prefix=$PREFIX/x86_64-w64-mingw32 \
+        --host=x86_64-w64-mingw32
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /mingw-crt
+RUN /mingw-w64-v$MINGW_VERSION/mingw-w64-crt/configure \
+        --prefix=$PREFIX/x86_64-w64-mingw32 \
+        --with-sysroot=$PREFIX/x86_64-w64-mingw32 \
+        --host=x86_64-w64-mingw32 \
+        CFLAGS="-Os" \
+        LDFLAGS="-s"
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /
+RUN sed -i 's#=/mingw/include#=/include#' gcc-$GCC_VERSION/gcc/config.gcc
+WORKDIR /gcc
+RUN /gcc-$GCC_VERSION/configure \
+        --prefix=$PREFIX \
+        --with-sysroot=$PREFIX \
+        --target=x86_64-w64-mingw32 \
+        --host=x86_64-w64-mingw32 \
+        --enable-static \
+        --disable-shared \
+        --with-gmp-include=/deps/include \
+        --with-gmp-lib=/deps/lib \
+        --with-mpc-include=/deps/include \
+        --with-mpc-lib=/deps/lib \
+        --with-mpfr-include=/deps/include \
+        --with-mpfr-lib=/deps/lib \
+        --enable-languages=c,c++ \
+        --enable-libgomp \
+        --enable-threads=win32 \
+        --enable-version-specific-runtime-libs \
+        --disable-multilib \
+        --disable-nls \
+        CFLAGS="-Os" \
+        LDFLAGS="-s"
+RUN make -j$(nproc)
+RUN make install
+
+WORKDIR /winpthreads
+RUN /mingw-w64-v$MINGW_VERSION/mingw-w64-libraries/winpthreads/configure \
+        --prefix=$PREFIX/x86_64-w64-mingw32 \
+        --with-sysroot=$PREFIX/x86_64-w64-mingw32 \
+        --host=x86_64-w64-mingw32 \
+        --enable-static \
+        --disable-shared
+RUN make -j$(nproc)
+RUN make install
+
+RUN echo '@%~dp0/gcc.exe %*' >$PREFIX/bin/cc.bat
+
+# Build some extra development tools
+
+WORKDIR /make
+RUN /make-$MAKE_VERSION/configure \
+        --host=x86_64-w64-mingw32 \
+        --disable-nls \
+        CFLAGS="-I/make-$MAKE_VERSION/glob -Os" \
+        LDFLAGS="-s"
+RUN make -j$(nproc)
+RUN cp make.exe $PREFIX/bin/
+
+WORKDIR /busybox-w32
+RUN make mingw64_defconfig
+RUN make -j$(nproc)
+RUN cp busybox.exe $PREFIX/bin/
+
+# Pack up a release
+
+WORKDIR /
+ENV PREFIX=${PREFIX}
+CMD zip -q9Xr - $PREFIX

README.md

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+# Portable C and C++ Development Kit for x64 Windows
+
+This is a Dockerfile that builds a small, portable development suite for
+writing C and C++ applications on and for x64 Windows. Docker is not
+needed to use the tools themselves. It's merely used as reliable, clean
+environment for compilation and linking. Included tools:
+
+* [Mingw-w64 GCC][w64] : compilers, linker, assembler
+* GNU Make : standard build tool
+* [busybox-w32][bb] : standard unix utilities, including sh
+
+## Build
+
+First build the image, then run it to produce a release .zip file:
+
+    docker build -t w64devkit .
+    docker run --rm w64devkit >w64devkit.zip
+
+## Usage
+
+The final .zip file contains tools in a typical unix-like configuration.
+Unzip the contents anywhere and add its `bin/` directory to your path.
+For example, while inside a console or batch script:
+
+    set PATH=c:\path\to\w64devkit\bin;%PATH%
+
+Then to access a small unix environment:
+
+    busybox sh -l
+
+This will expose the rest of busybox's commands without further action.
+
+## Notes
+
+Due to [an old GCC bug][bug], we must build a cross-compiler to
+cross-compile GCC itself because, due to host contamination, GCC can
+only be correctly and safely cross-compiled by a matching version.
+
+Since the development kit is intended to be flexible, light, and
+portable — i.e. run from anywhere, in place, and no installation is
+necessary — the binaries are all optimized for size, not speed.
+
+I'd love to include Git, but unfortunately Git's build system is a
+disaster and doesn't support cross-compilation. It's also got weird
+dependencies like Perl. Git may be a fantastic and wonderful tool, but
+it's also kind of a mess.
+
+It would be nice to have a better shell like Bash. BusyBox Ash is
+limited, and the Windows port is pretty quirky. Unfortunately Bash's
+build system is a total mess and does not support cross-compilation.
+
+Since the build environment is so stable and predicable, it would be
+great for the .zip to be reproducible, i.e. builds by different people
+are bit-for-bit identical. There are multiple reasons why this is not
+currently the case, the least of which are [timestamps in the .zip
+file][zip].
+
+
+[bb]: https://frippery.org/busybox/
+[bug]: https://gcc.gnu.org/legacy-ml/gcc/2017-05/msg00219.html
+[w64]: http://mingw-w64.org/
+[zip]: https://tanzu.vmware.com/content/blog/barriers-to-deterministic-reproducible-zip-files

SHA256SUMS

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+f00b0e8803dc9bab1e2165bd568528135be734df3fabf8d0161828cd56028952  binutils-2.34.tar.xz
+e8e7ac9ff79fe85cb6d2ccaffc650fbd2b0ea9a24ffb87a50b3b17e8e23a60e7  busybox-w32-FRP-3445-g10e14d5eb.tgz
+b6898a23844b656f1b68691c5c012036c2e694ac4b53a8918d4712ad876e7ea2  gcc-10.1.0.tar.xz
+258e6cd51b3fbdfc185c716d55f82c08aff57df0c6fbd143cf6ed561267a1526  gmp-6.2.0.tar.xz
+e968ce3c57ad39a593a92339e23eb148af6296b9f40aa453a9a9202c99d34436  make-4.2.tar.gz
+6985c538143c1208dcb1ac42cedad6ff52e267b47e5f970183a3e75125b43c2e  mpc-1.1.0.tar.gz
+1d3be708604eae0e42d578ba93b390c2a145f17743a744d8f3f8c2ad5855a38a  mpfr-4.0.2.tar.xz
+805e11101e26d7897fce7d49cbb140d7bac15f3e085a91e0001e80b2adaf48f0  mingw-w64-v6.0.0.tar.bz2

UNLICENSE

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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>