Atharex commented on issue #10222:
URL: https://github.com/apache/arrow/issues/10222#issuecomment-832486934
Thanks @edponce this solved the c++ code building issues!
My mistake was also running download_dependencies.sh through the bash
interpreter, so the exports were never saved in the current session.
I did notice also that if I run cmake with
`-DCMAKE_INSTALL_PREFIX=/usr/local/lib/arrow`
Then I cannot later build the python wheel, as it complains it cannot find
ARROW_INCLUDE_DIR and ARROW_LIB_DIR
```
cd $ARROW_HOME/python
export PYARROW_WITH_PARQUET=1
export PYARROW_WITH_CUDA=1
python3 setup.py build_ext -j 24 --build-type=release --bundle-arrow-cpp
bdist_wheel
```
```
Call Stack (most recent call first):
/opt/cmake-3.20.1-linux-x86_64/share/cmake-3.20/Modules/FindPkgConfig.cmake:70
(find_package_handle_standard_args)
cmake_modules/FindArrow.cmake:39 (include)
cmake_modules/FindArrowPython.cmake:46 (find_package)
CMakeLists.txt:210 (find_package)
This warning is for project developers. Use -Wno-dev to suppress it.
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.27.1")
CMake Error at
/opt/cmake-3.20.1-linux-x86_64/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:230
(message):
Could NOT find Arrow (missing: ARROW_INCLUDE_DIR ARROW_LIB_DIR
ARROW_FULL_SO_VERSION ARROW_SO_VERSION)
Call Stack (most recent call first):
/opt/cmake-3.20.1-linux-x86_64/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:594
(_FPHSA_FAILURE_MESSAGE)
cmake_modules/FindArrow.cmake:412 (find_package_handle_standard_args)
cmake_modules/FindArrowPython.cmake:46 (find_package)
CMakeLists.txt:210 (find_package)
```
When I use `-DCMAKE_INSTALL_PREFIX=$ARROW_HOME` then the python wheel build
finds all those variables and works normally. Any ideas why that would be the
case?
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