FindGzOGRE2.cmake does not work with upstream default cmake config

[oysstu]

Environment

• OS Version: N/A
• Source or binary build?
  Source gz-cmake3 3.4.1

Description

• Expected behavior: Find installed OGRE2/Ogre-Next libraries with default upstream cmake config
• Actual behavior: Does not find OGRE-Next without re-compiling with OGRE_USE_NEW_PROJECT_NAME=TRUE. This option has been added in master, but not released yet (default=FALSE until Ogre-Next >= 4.x)

The GZ_OGRE2_PROJECT_NAME variable permits changing the name of the upstream project between "OGRE2" and "Ogre-Next", but not "OGRE". I expect downstream packagers to transition to Ogre-Next before that, but it would be convenient to use GZ_OGRE2_PROJECT_NAME until then.

[oysstu]

I'm just going to close this until I can follow it up better. For some reason, it's unable to accept the pkgconfig under "look for OGRE2 installed from source". It's searching with the correct PKG_CONFIG_PATH, so I'm not sure what could be wrong.