MacOS下安装Python版PDAL失败：构建Wheel出错求助

环境信息 #

• MacOS
• Python 3.9.14
• Pip 23.2.1

问题原因 #

Python版PDAL包依赖系统预先安装的PDAL核心库，直接通过pip安装时，编译过程中CMake无法找到PDAL的配置文件（PDALConfig.cmake或pdal-config.cmake），导致编译失败。

关键错误日志 #

CMake Error at CMakeLists.txt:26 (find_package):
  By not providing "FindPDAL.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "PDAL", but
  CMake did not find one.

  Could not find a package configuration file provided by "PDAL" (requested
  version 2.4) with any of the following names:

    PDALConfig.cmake
    pdal-config.cmake

  Add the installation prefix of "PDAL" to CMAKE_PREFIX_PATH or set
  "PDAL_DIR" to a directory containing one of the above files.  If "PDAL"
  provides a separate development package or SDK, be sure it has been
  installed.

解决方法 #

1. 通过Homebrew安装PDAL核心库（推荐） #

这是MacOS上最便捷的方式：

• 终端执行安装PDAL：

  brew install pdal
  

• 安装完成后，再执行pip安装Python包：

  pip install pdal
  

2. 指定PDAL安装路径（手动编译安装PDAL时适用） #

如果是手动编译安装的PDAL，需要明确告诉CMake其安装位置：

PDAL_DIR=/你的PDAL安装目录 pip install pdal

替换/你的PDAL安装目录为实际路径，该路径下需包含PDALConfig.cmake文件。

3. 使用conda安装（Anaconda环境适用） #

若你的Python环境由conda管理，可直接安装conda维护的PDAL包：

conda install -c conda-forge pdal

内容的提问来源于stack exchange，提问作者Vilerala