[Bug 1956202] [NEW] `libexpat1-dev` CMake configuration error

[Sandi Vujaković]

Public bug reported:

Using the package provided by Ubuntu Impish results in the following
CMake configuration error when trying to build OpenColorIO:

```
[…]
CMake Error in src/OpenColorIO/CMakeLists.txt:
  Imported target "expat::expat" includes non-existent path

    "/usr/lib/include"

  in its INTERFACE_INCLUDE_DIRECTORIES.  Possible reasons include:

  * The path was deleted, renamed, or moved to another location.

  * An install or uninstall procedure did not complete successfully.

  * The installation package was faulty and references files it does not
  provide.
[…]
```

This wasn't an issue in Ubuntu Hirsute as far as I can recall and is not
an issue when using the ASWF-provided packages — CMake flag
`-DOCIO_INSTALL_EXT_PACKAGES=ALL`. A patch is attached that allows
OpenColorIO to build using system-provided packages.

Related ticket over on the OpenColorIO GitHub repository:
https://github.com/AcademySoftwareFoundation/OpenColorIO/issues/1415

** Affects: expat (Ubuntu)
     Importance: Undecided
         Status: New

** Patch added: "`libexpat1-dev` patch"
   https://bugs.launchpad.net/bugs/1956202/+attachment/5550748/+files/libexpat1-dev.txt

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to expat in Ubuntu.
https://bugs.launchpad.net/bugs/1956202

Title:
  `libexpat1-dev` CMake configuration error

Status in expat package in Ubuntu:
  New

Bug description:
  Using the package provided by Ubuntu Impish results in the following
  CMake configuration error when trying to build OpenColorIO:

  ```
  […]
  CMake Error in src/OpenColorIO/CMakeLists.txt:
    Imported target "expat::expat" includes non-existent path

      "/usr/lib/include"

    in its INTERFACE_INCLUDE_DIRECTORIES.  Possible reasons include:

    * The path was deleted, renamed, or moved to another location.

    * An install or uninstall procedure did not complete successfully.

    * The installation package was faulty and references files it does not
    provide.
  […]
  ```

  This wasn't an issue in Ubuntu Hirsute as far as I can recall and is
  not an issue when using the ASWF-provided packages — CMake flag
  `-DOCIO_INSTALL_EXT_PACKAGES=ALL`. A patch is attached that allows
  OpenColorIO to build using system-provided packages.

  Related ticket over on the OpenColorIO GitHub repository:
  https://github.com/AcademySoftwareFoundation/OpenColorIO/issues/1415

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/expat/+bug/1956202/+subscriptions