pkgname=glm
pkgver=1.0.1
_commit=761a842a595f58acfc01cc5c7760ff351feaaece
pkgrel=1
pkgdesc="Header only C++ mathematics library for graphics software based on the OpenGL Shading Language (GLSL) specifications"
arch=('x86_64')
license=('MIT')
url="https://github.com/g-truc/glm"
makedepends=('cmake') # 'clang')
source=("https://github.com/g-truc/glm/archive/refs/tags/${pkgver}.tar.gz"
#source=("https://github.com/g-truc/glm/archive/${_commit}.zip"
        "https://github.com/g-truc/glm/commit/9203edd741d855fc0c360c5c171156d17bf9a25b.diff"
        'glm.pc.in')
md5sums=('f824ac50e16310a95279032f82cbd341'
         'a0b6afdc09aec580c3f24202c077438a'
         'd84722ea70dd168cc6b36d51aadd6abf')

prepare() {
  cd ${pkgname}-${pkgver}

  #patch -p1 -i ${srcdir}/9203edd741d855fc0c360c5c171156d17bf9a25b.diff
}

build() {
  #export CC=/usr/bin/clang
  #export CXX=/usr/bin/clang++

  cmake -B build -S ${pkgname}-${pkgver} \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_INSTALL_LIBDIR=lib \
    -DBUILD_SHARED_LIBS=ON \
    -DCMAKE_INSTALL_DOCDIR=/usr/share/doc/glm
  cmake --build build
}

package() {

  DESTDIR=${pkgdir} cmake --install build 

  mkdir -p ${pkgdir}/usr/lib/pkgconfig/
  sed "s|@GLM_VERSION@|${pkgver}|" ../glm.pc.in > ${pkgdir}/usr/lib/pkgconfig/glm.pc

  install -Dm644 ${pkgname}-${pkgver}/copying.txt ${pkgdir}/usr/share/licenses/${pkgname}/LICENSE
}