# Description: A 2D Physics Engine for Games
# URL: https://box2d.org/
# Maintainer: Tim Biermann, tbier at posteo dot de
# Depends on: glfw

name=box2d
version=3.1.1
release=1
_enkits=0289cf6ffce86697e1f46cb4eeca1c946bffec71
source=(https://github.com/erincatto/box2d/archive/v$version/$name-$version.tar.gz
  https://github.com/dougbinks/enkiTS/archive/$_enkits/enkits-$_enkits.tar.gz
  libm.patch)

build() {
  patch -Np1 -d $name-$version -i $SRC/libm.patch
  cmake -S $name-$version -B build -G Ninja \
    -D CMAKE_INSTALL_PREFIX=/usr \
    -D CMAKE_INSTALL_LIBDIR=lib \
    -D CMAKE_BUILD_TYPE=Release \
    -D CMAKE_CXX_FLAGS_RELEASE="$CXXFLAGS -fPIC" \
    -D CMAKE_C_FLAGS_RELEASE="$CFLAGS -fPIC" \
    -D BUILD_SHARED_LIBS=ON \
    -D BOX2D_SAMPLES=OFF \
    -D FETCHCONTENT_SOURCE_DIR_ENKITS=$SRC/enkiTS-$_enkits \
    -Wno-dev
  cmake --build build
  DESTDIR=$PKG cmake --install build

  install -d $PKG/usr/lib/pkgconfig

cat > "$PKG/usr/lib/pkgconfig/box2d.pc" <<EOF
prefix=/usr
exec_prefix=\${prefix}
libdir=\${exec_prefix}/lib
includedir=\${prefix}/include

Name: box2d
Description: 2D physics engine
Version: $version
Libs: -L\${libdir} -lbox2d
Libs.private: -lm
Cflags: -I\${includedir}
EOF
}