使用过程中注意

安装了MSYS2之后，需要使用

pacman -S base-devel

安装编译环境，否则报错

autoreconf: command not found
  ==> ERROR: A failure occurred in prepare().
      Aborting...

Protobuf-c Win-platform binaries, built with MSYS2, test on STM32F446 (IDE: Keil5).

Using https://github.com/protobuf-c/protobuf-c.

How to use gen.exe?

1. Open a terminal.
2. Type gen --help.
3. OK! Now you know HOW.

How to compile with Keil5?

1. Add protobuf-c folder to your project.
2. Generate your files use gen.exe, then add them to your project.
3. Write your program, according to files in test folder.
4. DO NOT USE MicroLib.

How to compile protoc.exe?

1. Install MSYS2.

2. New a folder, for example, pbc.

3. Enter pbc, new a file named "PKGBUILD".

4. Fill the file with the code below.

   # Maintainer: Alexey Pavlov <[email protected]>
   
   _realname=protobuf-c
   pkgbase=mingw-w64-${_realname}
   pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
   pkgver=1.3.1
   pkgrel=1
   pkgdesc="Protocol Buffers implementation in C (mingw-w64)"
   arch=('any')
   url="https://github.com/protobuf-c/protobuf-c"
   license=('BSD')
   depends=("${MINGW_PACKAGE_PREFIX}-protobuf")
   makedepends=("${MINGW_PACKAGE_PREFIX}-gcc")
   options=('staticlibs' 'strip')
   source=("$url/releases/download/v${pkgver}/${_realname}-${pkgver}.tar.gz")
   sha256sums=('51472d3a191d6d7b425e32b612e477c06f73fe23e07f6a6a839b11808e9d2267')
   
   prepare() {
     cd "${srcdir}/${_realname}-${pkgver}"
     autoreconf -fiv
   }
   
   build() {
     [[ -d "${srcdir}/build-${MINGW_CHOST}" ]] && rm -rf "${srcdir}/build-${MINGW_CHOST}"
     mkdir -p "${srcdir}/build-${MINGW_CHOST}" && cd "${srcdir}/build-${MINGW_CHOST}"
   
     ../${_realname}-${pkgver}/configure \
         --prefix=${MINGW_PREFIX} \
         --build=${MINGW_CHOST} \
         --host=${MINGW_CHOST}
     make
   }
   
   check() {
     cd "${srcdir}/build-${MINGW_CHOST}"
     make check || true
   }
   
   package() {
     cd "${srcdir}/build-${MINGW_CHOST}"
     make DESTDIR="${pkgdir}" install
     install -Dm644 ${srcdir}/${_realname}-${pkgver}/LICENSE "${pkgdir}${MINGW_PREFIX}"/share/licenses/${_realname}/LICENSE
   }
   

5. Open a terminal in this folder, type MINGW_INSTALLS=mingw64 makepkg-mingw -sLf.

   

6. Wait for compiling done.

   

7. Install the lib you have just compiled.

   type pacman -U mingw-w64-x86_64-protobuf-c*.pkg.tar.xz, enter.

   

8. Copy your protoc.exe from <your MSYS2 path>/mingw64/bin.

9. Do what you want.