#cmake parent directory

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stray void
#

OK, so I tried this Arch PKGBUILD

# Maintainer: Brian Thompson <brianrobt@pm.me>
# Contributor: Daniel Maslowski <info@orangecms.org>
# Contributor: Ke Liu <specter119@gmail.com>

pkgname=python-libmamba
pkgver=2.0.0
_srcver=2024.09.25 
_name=mamba-$_srcver
pkgrel=1
pkgdesc="The fast cross-platform package manager"
arch=('x86_64')
url="https://github.com/mamba-org/mamba"
license=('BSD-3-Clause')
depends=(
  'fmt'
  'libsolv'
  'python>=3.9'
  'reproc'
  'yaml-cpp>=0.8.0'
  'simdjson'
)
makedepends=(
  # header-only libs
  'cli11'
  'spdlog'
  'tl-expected'
  'nlohmann-json'
  # C++ build tools
  'ccache'
  'python-cmake>=3.18'
  'doctest'
  'python-ninja'
  'pybind11'
  # python build tools
  'python-build'
  'python-installer'
  'python-scikit-build>=0.13'
  'python-setuptools>=42'
  'python-wheel'
)
provides=("libmamba=$pkgver")
conflicts=('micromamba')
#options=(!emptydirs)
#backup=(etc/conda/condarc)
source=("$_name-$pkgver.tar.gz::$url/archive/refs/tags/$_srcver.tar.gz")
sha512sums=('6b3e64255f8aa63723dd08f578f79195b46249a02002b6d0d77713fd181f0557e3b6044075a823e639b0240b07b4e17dd0c9c17790c9152a68992e3ca9a599fa')

prepare() {
  cd $srcdir/${_name}/libmambapy

  sed -i 's/cmake_args=/cmake_source_dir="..", cmake_args=/' setup.py
}

build() {
  cd $srcdir/${_name}/libmambapy

  export SKBUILD_CONFIGURE_OPTIONS="\
    -D CMAKE_C_COMPILER=gcc \
    -D CMAKE_CXX_COMPILER=g++ \
    -D CMAKE_BUILD_WITH_INSTALL_RPATH=ON \
    -D BUILD_LIBMAMBA=ON \
    -D BUILD_LIBMAMBAPY=ON \
    -D BUILD_MICROMAMBA=OFF \
    -D BUILD_MAMBA_PACKAGE=OFF \
    -D CMAKE_JOB_POOLS:STRING=compile=5;link=2 \
    --preset=mamba-unix-shared-release"

  python -m build --wheel --no-isolation
}

package() {
  cd $srcdir/${_name}
  cmake --install build/ --prefix "$pkgdir/usr"

  cd $srcdir/${_name}/libmambapy
  python -m installer --destdir="$pkgdir" dist/*.whl
 
  install -Dm 644 LICENSE $pkgdir/usr/share/licenses/${pkgname}/LICENSE.txt
}
#

replacing .. with the absolute path doesn’t change anything.

stray void
#

If you need any other info, I'm happy to provide it

stray void
hallow breach
#

I'll try to look into it tomorrow! Remind me if I forget.

stray void
#

Thanks!

stray void
#

Hia, reminding you as requested!

hallow breach
#

In general, you should always "install" to use something, and not run it from the build directory. If you set the install directory to where you want the build to be, then it should be able to find it. (There is a way to do this from the build directory, with export(PACKAGE), but I think it's better to "install" to a local dir)

hallow breach
# 
cmake -S. -Bbuild \
    -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON \
    -DBUILD_LIBMAMBA=ON \
    -DBUILD_LIBMAMBAPY=ON \
    -DBUILD_MICROMAMBA=OFF \
    -DBUILD_MAMBA_PACKAGE=OFF \
    -DBUILD_SHARED=ON
cmake --build build --parallel 8
cmake --install build --prefix install
cd libmambapy
export SKBUILD_CONFIGURE_OPTIONS="\
    -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON \
    -DBUILD_LIBMAMBA=ON \
    -DBUILD_LIBMAMBAPY=ON \
    -DBUILD_MICROMAMBA=OFF \
    -DBUILD_MAMBA_PACKAGE=OFF \
    -Dlibmamba_ROOT=$PWD/../install"
python -m build -x --wheel --no-isolation

should work. (I have a different mamba in my /usr/local, which I used to set up the build environment, so I can't actually complete the build, but that seems to be working up to that point)

# 
micromamba create -n mamba --file dev/environment-micromamba-static.yml
micromamba activate mamba
micromamba install -c conda-forge scikit-build setuptools python-build

Is my setup to try it locally.