Currently, this package simply copies the header files into /usr/include. Unfortunately, the corresponding CMake config files are therefore not installed and range-v3 cannot be checked by external projects using CMake directive find_package(range-v3).

The following PKGBUILD installs range-v3 using the official CMake instructions, in case you are interested. I am not sure about the `gcc` dependency.

pkgname=range-v3
pkgver=0.3.6
pkgrel=1
pkgdesc="Experimental range library for C++11/14/17"
arch=('any')
url='https://github.com/ericniebler/range-v3'
license=('custom')
makedepends=('cmake' 'gcc')
source=("https://github.com/ericniebler/range-v3/archive/${pkgver}.tar.gz")
sha512sums=('218cb179023980a3c13678da24638a10030e1c957c711117ebdd7d895f6480644b598686bc1a03d0460889ac058c0f6f9b2d9fcafaae0588a6e2cc1752be1db0')

prepare() {
cd "${srcdir}/range-v3-${pkgver}"
rm -rf build && mkdir build
}

build() {
cd "${srcdir}/range-v3-${pkgver}"

cd build
cmake .. \
-DCMAKE_INSTALL_PREFIX=/usr \
-DRANGE_V3_TESTS=OFF \
-DRANGE_V3_HEADER_CHECKS=OFF \
-DRANGE_V3_EXAMPLES=OFF \
-DRANGE_V3_PERF=OFF
make
}

package() {
cd "${srcdir}/range-v3-${pkgver}"
install -Dm644 "LICENSE.txt" "$pkgdir/usr/share/licenses/$pkgname/LICENSE"

cd build
make DESTDIR="${pkgdir}/" install
}