How to compile libheif with  openjpeg ?

I use `PKG_CONFIG_PATH` but failed, I do not want install this library:

```
-- The imported target "opj_decompress" references the file
   "/usr/bin/opj_decompress"
but this file does not exist.  Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
   "/usr/lib/x86_64-linux-gnu/openjpeg-2.1/OpenJPEGTargets.cmake"
but not all the files it references.
```
How to Compile libheif with  openjpeg ?
This is a GitHub Issue
repo:libheif
owner:strukturag
Title : How to Compile libheif with  openjpeg ?
Issue date:

--- start body ---
How to compile libheif with  openjpeg ?

I use `PKG_CONFIG_PATH` but failed, I do not want install this library:

```
-- The imported target "opj_decompress" references the file
   "/usr/bin/opj_decompress"
but this file does not exist.  Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
   "/usr/lib/x86_64-linux-gnu/openjpeg-2.1/OpenJPEGTargets.cmake"
but not all the files it references.
```
--- end body ---
