cross compile success from mac(M4) to windows static application

[cariers]

This is a demo for cross compile mac to windows static program

tips: clone gflags, glog, opencv, opencv_contrib open source to disk.

1. build gflags

cmake .. \
  -DCMAKE_SYSTEM_NAME=Windows \
  -DCMAKE_SYSTEM_PROCESSOR=x86_64 \
  -DCMAKE_CXX_COMPILER=x86_64-w64-mingw32-g++ \
  -DGFLAGS_NAMESPACE=google \
  -DCMAKE_INSTALL_PREFIX=/Users/cariers.kim/x86/gflags

make -j$(sysctl -n hw.ncpu)
make install

2. build glog

cmake .. \
  -DCMAKE_SYSTEM_NAME=Windows \
  -DCMAKE_SYSTEM_PROCESSOR=x86_64 \
  -DCMAKE_CXX_COMPILER=x86_64-w64-mingw32-g++ \
  -Dgflags_DIR=/Users/cariers.kim/x86/gflags/lib/cmake/gflags \
  -DCMAKE_INSTALL_PREFIX=/Users/cariers.kim/x86/glog \
  -DWITH_UNWIND=none

make -j$(sysctl -n hw.ncpu)
make install

3. build opencv (I did build some module success )

cmake .. \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_SYSTEM_NAME=Windows \
  -DCMAKE_SYSTEM_PROCESSOR=x86_64 \
  -DCMAKE_CXX_FLAGS=-fpermissive \
  -DCMAKE_C_COMPILER=/opt/homebrew/bin/x86_64-w64-mingw32-gcc \
  -DCMAKE_CXX_COMPILER=/opt/homebrew/bin/x86_64-w64-mingw32-g++ \
  -DCMAKE_INSTALL_PREFIX=/Users/cariers.kim/x86/opencv \
  -DOPENCV_EXTRA_MODULES_PATH=/Users/cariers.kim/open-source/opencv_contrib-4.10.0/modules \
  -DGFLAGS_NAMESPACE=google \
  -DGFLAGS_INCLUDE_DIR=/Users/cariers.kim/x86/gflags/include/gflags \
  -DGflags_DIR=/Users/cariers.kim/x86/gflags/lib/cmake/gflags \
  -Dgflags_DIR=/Users/cariers.kim/x86/gflags/lib/cmake/gflags \
  -DGLOG_INCLUDE_DIR=/Users/cariers.kim/x86/glog/include/glog \
  -DGlog_DIR=/Users/cariers.kim/x86/glog/lib/cmake/glog \
  -DBUILD_SHARED_LIBS=OFF \
  -DBUILD_PROTOBUF=OFF \
  -DBUILD_opencv_hdf=OFF \
  -DBUILD_opencv_world=ON \
  -DBUILD_OPENEXR=ON \
  -DWITH_PROTOBUF=OFF \
  -DWITH_ZLIB_NG=ON 

make -j$(sysctl -n hw.ncpu)
make install

4. build opencv-rs applicaion

Cargo.toml

[package]
name = "rust-demo"
version = "0.1.0"
edition = "2024"


[dependencies]
opencv = { version = "0.94.2" , default-features = false, features = ["imgproc", "imgcodecs", "clang-runtime"] }

main.rs

use opencv::{Result, imgcodecs};

fn main() -> Result<()> {
    let image = imgcodecs::imread("lena.jpg", 0)?;
    // highgui::named_window("hello opencv!", 0)?;
    // highgui::imshow("hello opencv!", &image)?;
    // highgui::wait_key(10000)?;
    Ok(())
}

build shell

# link stdc++ static
export CXXSTDLIB=static=stdc++
# link opencv module static (static=static=module !important)
# because first "static=" is opencv find lib, second  "static=" is link to static  （has other method ?）
export OPENCV_LINK_LIBS=static=static=opencv_world4110,static=static=opencv_img_hash4110,static=static=IlmImf,static=static=ade,static=static=libjpeg-turbo,static=static=libopenjp2,static=static=libpng,static=static=libtiff,static=static=libwebp,static=static=z
# link path (both opencv and stdc++)
export OPENCV_LINK_PATHS="/Users/cariers.kim/x86/opencv/lib,/Users/cariers.kim/x86/opencv/lib/opencv4/3rdparty,/opt/homebrew/Cellar/mingw-w64/12.0.0_2/toolchain-x86_64/x86_64-w64-mingw32/lib"
# include opencv
export OPENCV_INCLUDE_PATHS="/Users/cariers.kim/x86/opencv/include/opencv4"

#build
cargo build --target x86_64-pc-windows-gnu --release -vv

Tks opencv-rs ! great !