[FindOGRE.cmake] Restricting search to only ogre-next library

[oysstu]

The FindOGRE.cmake module finds both ogre and ogre-next if both are installed. Is it possible to restrict the search to only ogre next? Specifically with the new ogre-next project naming.

[Apteryks]

Also, how is FindOGRE.cmake supposed to be used for a system-provided Ogre-Next library? It seems one has to manually add the the /lib/OGRE/cmake prefix where FindOGRE.cmake gets installed as there is no CMake config module for it, and then it fails like so:

-- Configuring MYGUI 3.4.4
-- Enabling visibility flags
CMake Error at /gnu/store/kfdgb7xlh2bc1wk2gpwr2zw18xxgjyl8-ogre-next-3.0.0/lib/OGRE/cmake/MacroLogFeature.cmake:90 (FILE):
  FILE failed to open for writing (Permission denied):

    /EnabledFeatures.txt
Call Stack (most recent call first):
  CMake/Dependencies.cmake:40 (macro_log_feature)
  CMakeLists.txt:175 (include)


-- Found SDL2: /gnu/store/5c7nl10x6ka32yznp4dxjijmvh99sa0r-profile/lib/libSDL2.so  
-- Looking for OGRE...
-- Checking for module 'OGRE-Next'
--   No package 'OGRE-Next' found
-- Checking for module 'OGRE'
--   Found OGRE, version 3.0.0
-- Found Ogre Eris (3.0.0)
-- Found OGRE: optimized;/gnu/store/5c7nl10x6ka32yznp4dxjijmvh99sa0r-profile/lib/libOgreMain.so;debug;/gnu/store/5c7nl10x6ka32yznp4dxjijmvh99sa0r-profile/lib/libOgreMain.so
-- Looking for OGRE_Paging...
-- Could not locate OGRE_Paging
-- Looking for OGRE_Terrain...
-- Could not locate OGRE_Terrain
-- Looking for OGRE_Property...
-- Could not locate OGRE_Property
-- Looking for OGRE_Volume...
-- Could not locate OGRE_Volume
-- Looking for OGRE_Overlay...
-- Found OGRE_Overlay: optimized;/gnu/store/5c7nl10x6ka32yznp4dxjijmvh99sa0r-profile/lib/libOgreOverlay.so;debug;/gnu/store/5c7nl10x6ka32yznp4dxjijmvh99sa0r-profile/lib/libOgreOverlay.so
-- Looking for OGRE_HlmsPbs...
-- Found OGRE_HlmsPbs: optimized;/gnu/store/5c7nl10x6ka32yznp4dxjijmvh99sa0r-profile/lib/libOgreHlmsPbs.so;debug;/gnu/store/5c7nl10x6ka32yznp4dxjijmvh99sa0r-profile/lib/libOgreHlmsPbs.so
-- Looking for OGRE_HlmsUnlit...
-- Found OGRE_HlmsUnlit: optimized;/gnu/store/5c7nl10x6ka32yznp4dxjijmvh99sa0r-profile/lib/libOgreHlmsUnlit.so;debug;/gnu/store/5c7nl10x6ka32yznp4dxjijmvh99sa0r-profile/lib/libOgreHlmsUnlit.so
CMake Error at /gnu/store/kfdgb7xlh2bc1wk2gpwr2zw18xxgjyl8-ogre-next-3.0.0/lib/OGRE/cmake/MacroLogFeature.cmake:90 (FILE):
  FILE failed to open for writing (Permission denied):

    /EnabledFeatures.txt
Call Stack (most recent call first):
  CMake/Dependencies.cmake:53 (macro_log_feature)
  CMakeLists.txt:175 (include)


CMake Error at /gnu/store/kfdgb7xlh2bc1wk2gpwr2zw18xxgjyl8-ogre-next-3.0.0/lib/OGRE/cmake/MacroLogFeature.cmake:90 (FILE):
  FILE failed to open for writing (Permission denied):

    /EnabledFeatures.txt
Call Stack (most recent call first):
  CMake/Dependencies.cmake:95 (macro_log_feature)
  CMakeLists.txt:175 (include)


-- 

-- Configuring incomplete, errors occurred!

It seems this is intended for use only at Ogre build time, where OGRE_BINARY_DIR would be set? (here it appears to be nul)

[Apteryks]

Seems the macro_log_feature calls are done in mygui, should be removed from there if it's not intended to be a public CMake API of Ogre.

[Apteryks]

Seems this 6 years old commit (!) is missing from this repository, but found in the original ogre one?

commit 98563cbaf9cd2989ce63789542a3d75ce9b78e9f
Author: Pavel R. <XXX>
Date:   Sat Nov 10 01:48:17 2018 +0100

    CMake: use PROJECT_*_DIR and remove superficial project() calls

[oysstu]

Also, how is FindOGRE.cmake supposed to be used for a system-provided Ogre-Next library? It seems one has to manually add the the /lib/OGRE/cmake prefix where FindOGRE.cmake gets installed as there is no CMake config module for it ...

Here's an old forum discussion about the placement of the FindOGRE.cmake
https://forums.ogre3d.org/viewtopic.php?t=74330

It seems like the cmake integration is based around either working with a in-project source distribution (as is done in ogre.cmake in the samples) or copying and modifying the FindOGRE.cmake into projects using the library. Neither are good options, the first obviously does not work for distributed binaries and the second places the maintenance burden of the cmake integration onto downstream projects.

Right now, it looks to me like using pkg-config from cmake is the best option. At least the project has a unique name now, so it should be easier to use than before.

[Apteryks]

OK, thanks for the link. Yeah, the situation can be improved to simply detect using a CMake config file, as is the norm for most CMake projects. For now, backporting (fowardporting?) some CMake fixes from the old Ogre repo appears to resolve my immediate issue (as long as I set CMAKE_MODULE_PATH manually before attempting to build mygui-next), see #474.

[oysstu]

Just be aware that if both ogre (classic) and ogre-next are installed, the FindOGRE module in ogre-next will also find and set quite a few cmake variables for ogre (classic).

-- Looking for OGRE...
-- Checking for module 'OGRE-Next'
--   Found OGRE-Next, version 3.0.0
-- Checking for module 'OGRE'
--   Found OGRE, version 14.3.1
-- Found Ogre Eris (3.0.0)

[Apteryks]

Ack; I can see this being an issue for File Hierarchy Standard systems like Debian, but it's not as much an issue for a functional ones like Guix, where everything is neatly separated under its own prefix and can be composed as needed (instead of globally made available).

[oysstu]

Did a quick test with FindOGRE.cmake in v3.0.0 using the following CMakeLists to print the defined variables. Defining MODULE ensures that FindOGRE from ogre-next is used, as regular ogre uses CONFIG. I first ran this with only ogre-next (v3.0.0) installed, then installed alongside ogre (v14.3.1). Clearly, a lot of the CMake variables are being overridden when ogre is present. OGRE_VERSION, OGRE_INCLUDE_DIR, OGRE_CONFIG_INCLUDE_DIR, to mention a few.

cmake_minimum_required(VERSION 3.22)
project(ogre-test)

list(APPEND CMAKE_MODULE_PATH "/usr/lib/OGRE-Next/cmake")
find_package(OGRE REQUIRED MODULE)

get_cmake_property(_variableNames VARIABLES)
list (SORT _variableNames)
foreach (_variableName ${_variableNames})
    message(STATUS "${_variableName}=${${_variableName}}")
endforeach()

-      Package 'OGRE', required by 'virtual:world', not found
-    Found Ogre Eris (3.0.0)
+      Found OGRE, version 14.3.1
+    Found Ogre  (..)
-    Could not locate OGRE_Paging
+    Found OGRE_Paging: optimized;/usr/lib/libOgrePaging.so;debug;/usr/lib/libOgrePaging.so
-    Could not locate OGRE_Terrain
+    Found OGRE_Terrain: optimized;/usr/lib/libOgreTerrain.so;debug;/usr/lib/libOgreTerrain.so
-    Could not locate OGRE_Property
+    Found OGRE_Property: optimized;/usr/lib/libOgreProperty.so;debug;/usr/lib/libOgreProperty.so
-    Could not locate OGRE_Volume
+    Found OGRE_Volume: optimized;/usr/lib/libOgreVolume.so;debug;/usr/lib/libOgreVolume.so
-    Found OGRE_HlmsPbs: optimized;/usr/lib/libOgreNextHlmsPbs.so;debug;/usr/lib/libOgreNextHlmsPbs.so
+    Could not locate OGRE_HlmsPbs
-    Found OGRE_HlmsUnlit: optimized;/usr/lib/libOgreNextHlmsUnlit.so;debug;/usr/lib/libOgreNextHlmsUnlit.so
+    Could not locate OGRE_HlmsUnlit
-    OGRE_CONFIG_FREEIMAGE=1
-    OGRE_CONFIG_HEADER=/usr/include/OGRE-Next//OgreBuildSettings.h
-    OGRE_CONFIG_HEADERS=/usr/include/OGRE-Next//OgreBuildSettings.h;/usr/include/OGRE-Next//OgreConfig.h
-    OGRE_CONFIG_INCLUDE_DIR=/usr/include/OGRE-Next/
+    OGRE_CONFIG_HEADER=/usr/include/OGRE//OgreBuildSettings.h
+    OGRE_CONFIG_HEADERS=/usr/include/OGRE//OgreBuildSettings.h;/usr/include/OGRE//OgreConfig.h
+    OGRE_CONFIG_INCLUDE_DIR=/usr/include/OGRE/
-    OGRE_CONFIG_THREADS=1
+    OGRE_CONFIG_THREADS=3
-    OGRE_HlmsPbs_FOUND=TRUE
-    OGRE_HlmsPbs_INCLUDE_DIR=/usr/include/OGRE-Next/Hlms/Pbs
-    OGRE_HlmsPbs_INCLUDE_DIRS=/usr/include/OGRE-Next/Hlms/Pbs
-    OGRE_HlmsPbs_LIBRARIES=optimized;/usr/lib/libOgreNextHlmsPbs.so;debug;/usr/lib/libOgreNextHlmsPbs.so
+    OGRE_HlmsPbs_INCLUDE_DIR=OGRE_HlmsPbs_INCLUDE_DIR-NOTFOUND
-    OGRE_HlmsUnlit_FOUND=TRUE
-    OGRE_HlmsUnlit_INCLUDE_DIR=/usr/include/OGRE-Next/Hlms/Unlit
-    OGRE_HlmsUnlit_INCLUDE_DIRS=/usr/include/OGRE-Next/Hlms/Unlit
-    OGRE_HlmsUnlit_LIBRARIES=optimized;/usr/lib/libOgreNextHlmsUnlit.so;debug;/usr/lib/libOgreNextHlmsUnlit.so
+    OGRE_HlmsUnlit_INCLUDE_DIR=OGRE_HlmsUnlit_INCLUDE_DIR-NOTFOUND
-    OGRE_INCLUDE_DIR=/usr/include/OGRE-Next/
-    OGRE_INCLUDE_DIR=/usr/include/OGRE-Next/
-    OGRE_INCLUDE_DIRS=/usr/include/OGRE-Next/;/usr/include
+    OGRE_INCLUDE_DIR=/usr/include/OGRE/
+    OGRE_INCLUDE_DIR=/usr/include/OGRE/
+    OGRE_INCLUDE_DIRS=/usr/include/OGRE/;/usr/include
-    OGRE_Overlay_INCLUDE_DIR=/usr/include/OGRE-Next/Overlay/
-    OGRE_Overlay_INCLUDE_DIRS=/usr/include/OGRE-Next/Overlay/
+    OGRE_Overlay_INCLUDE_DIR=/usr/include/OGRE/Overlay/
+    OGRE_Overlay_INCLUDE_DIRS=/usr/include/OGRE/Overlay/
-    OGRE_PKGC_CFLAGS=
+    OGRE_PKGC_CFLAGS=-I/usr/include/OGRE;-pthread
-    OGRE_PKGC_CFLAGS_OTHER=
-    OGRE_PKGC_FOUND=
-    OGRE_PKGC_INCLUDEDIR=
-    OGRE_PKGC_INCLUDE_DIRS=/usr/include;/usr/include/OGRE-Next
-    OGRE_PKGC_LDFLAGS=-L/usr/lib;-lOgreNextMain;-lpthread
+    OGRE_PKGC_CFLAGS_OTHER=-pthread
+    OGRE_PKGC_FOUND=1
+    OGRE_PKGC_INCLUDEDIR=/usr/include
+    OGRE_PKGC_INCLUDE_DIRS=/usr/include/OGRE
+    OGRE_PKGC_LDFLAGS=-L/usr/lib;-lOgreMain;-lpthread
-    OGRE_PKGC_LIBDIR=
-    OGRE_PKGC_LIBRARIES=OgreNextMain;pthread
+    OGRE_PKGC_LIBDIR=/usr/lib
+    OGRE_PKGC_LIBRARIES=OgreMain;pthread
-    OGRE_PKGC_LINK_LIBRARIES=/usr/lib/libOgreNextMain.so;/usr/lib/libpthread.a
-    OGRE_PKGC_MODULE_NAME=
+    OGRE_PKGC_LINK_LIBRARIES=/usr/lib/libOgreMain.so;/usr/lib/libpthread.a
+    OGRE_PKGC_MODULE_NAME=OGRE
-    OGRE_PKGC_PREFIX=
-    OGRE_PKGC_STATIC_CFLAGS=
+    OGRE_PKGC_PREFIX=/usr
+    OGRE_PKGC_STATIC_CFLAGS=-I/usr/include/OGRE;-pthread
-    OGRE_PKGC_STATIC_CFLAGS_OTHER=
-    OGRE_PKGC_STATIC_INCLUDE_DIRS=/usr/include;/usr/include/OGRE-Next
-    OGRE_PKGC_STATIC_LDFLAGS=-L/usr/lib;-lOgreNextMain;-lpthread
+    OGRE_PKGC_STATIC_CFLAGS_OTHER=-pthread
+    OGRE_PKGC_STATIC_INCLUDE_DIRS=/usr/include/OGRE
+    OGRE_PKGC_STATIC_LDFLAGS=-L/usr/lib;-lOgreMain;-lpthread
-    OGRE_PKGC_STATIC_LIBRARIES=OgreNextMain;pthread
+    OGRE_PKGC_STATIC_LIBRARIES=OgreMain;pthread
-    OGRE_PKGC_VERSION=
-    OGRE_PLUGIN_DIR_DBG=
-    OGRE_PLUGIN_DIR_REL=
-    OGRE_PLUGIN_DIR_TMP=
+    OGRE_PKGC_VERSION=14.3.1
+    OGRE_PLUGIN_DIR_DBG=/lib/OGRE
+    OGRE_PLUGIN_DIR_REL=/lib/OGRE
+    OGRE_PLUGIN_DIR_TMP=/lib/OGRE
-    OGRE_Paging_INCLUDE_DIR=OGRE_Paging_INCLUDE_DIR-NOTFOUND
-    OGRE_Paging_LIBRARY_DBG=OGRE_Paging_LIBRARY_DBG-NOTFOUND
+    OGRE_Paging_FOUND=TRUE
+    OGRE_Paging_INCLUDE_DIR=/usr/include/OGRE/Paging/
+    OGRE_Paging_INCLUDE_DIRS=/usr/include/OGRE/Paging/
+    OGRE_Paging_LIBRARIES=optimized;/usr/lib/libOgrePaging.so;debug;/usr/lib/libOgrePaging.so
+    OGRE_Paging_LIBRARY=optimized;/usr/lib/libOgrePaging.so;debug;/usr/lib/libOgrePaging.so
+    OGRE_Paging_LIBRARY_DBG=/usr/lib/libOgrePaging.so
-    OGRE_Paging_LIBRARY_REL=OGRE_Paging_LIBRARY_REL-NOTFOUND
+    OGRE_Paging_LIBRARY_REL=/usr/lib/libOgrePaging.so
-    OGRE_Plugin_ParticleFX_INCLUDE_DIR=/usr/include/OGRE-Next/Plugins/ParticleFX/
-    OGRE_Plugin_ParticleFX_INCLUDE_DIRS=/usr/include/OGRE-Next/Plugins/ParticleFX/
-    OGRE_Plugin_ParticleFX_LIBRARY_DBG=OGRE_Plugin_ParticleFX_LIBRARY_DBG-NOTFOUND
+    OGRE_Plugin_ParticleFX_INCLUDE_DIR=/usr/include/OGRE/Plugins/ParticleFX/
+    OGRE_Plugin_ParticleFX_INCLUDE_DIRS=/usr/include/OGRE/Plugins/ParticleFX/
+    OGRE_Plugin_ParticleFX_LIBRARIES=optimized;/lib/OGRE/Plugin_ParticleFX.so;debug;/lib/OGRE/Plugin_ParticleFX.so
+    OGRE_Plugin_ParticleFX_LIBRARY=optimized;/lib/OGRE/Plugin_ParticleFX.so;debug;/lib/OGRE/Plugin_ParticleFX.so
+    OGRE_Plugin_ParticleFX_LIBRARY_DBG=/lib/OGRE/Plugin_ParticleFX.so
-    OGRE_Plugin_ParticleFX_LIBRARY_REL=OGRE_Plugin_ParticleFX_LIBRARY_REL-NOTFOUND
-    OGRE_Property_INCLUDE_DIR=OGRE_Property_INCLUDE_DIR-NOTFOUND
-    OGRE_Property_LIBRARY_DBG=OGRE_Property_LIBRARY_DBG-NOTFOUND
+    OGRE_Plugin_ParticleFX_LIBRARY_REL=/lib/OGRE/Plugin_ParticleFX.so
+    OGRE_Property_FOUND=TRUE
+    OGRE_Property_INCLUDE_DIR=/usr/include/OGRE/Property
+    OGRE_Property_INCLUDE_DIRS=/usr/include/OGRE/Property
+    OGRE_Property_LIBRARIES=optimized;/usr/lib/libOgreProperty.so;debug;/usr/lib/libOgreProperty.so
+    OGRE_Property_LIBRARY=optimized;/usr/lib/libOgreProperty.so;debug;/usr/lib/libOgreProperty.so
+    OGRE_Property_LIBRARY_DBG=/usr/lib/libOgreProperty.so
-    OGRE_Property_LIBRARY_REL=OGRE_Property_LIBRARY_REL-NOTFOUND
+    OGRE_Property_LIBRARY_REL=/usr/lib/libOgreProperty.so
-    OGRE_RenderSystem_GL3Plus_INCLUDE_DIR=/usr/include/OGRE-Next/RenderSystems/GL3Plus/
-    OGRE_RenderSystem_GL3Plus_INCLUDE_DIRS=/usr/include/OGRE-Next/RenderSystems/GL3Plus/
-    OGRE_RenderSystem_GL3Plus_LIBRARY_DBG=OGRE_RenderSystem_GL3Plus_LIBRARY_DBG-NOTFOUND
+    OGRE_RenderSystem_GL3Plus_INCLUDE_DIR=/usr/include/OGRE/RenderSystems/GL3Plus/
+    OGRE_RenderSystem_GL3Plus_INCLUDE_DIRS=/usr/include/OGRE/RenderSystems/GL3Plus/
+    OGRE_RenderSystem_GL3Plus_LIBRARIES=optimized;/lib/OGRE/RenderSystem_GL3Plus.so;debug;/lib/OGRE/RenderSystem_GL3Plus.so
+    OGRE_RenderSystem_GL3Plus_LIBRARY=optimized;/lib/OGRE/RenderSystem_GL3Plus.so;debug;/lib/OGRE/RenderSystem_GL3Plus.so
+    OGRE_RenderSystem_GL3Plus_LIBRARY_DBG=/lib/OGRE/RenderSystem_GL3Plus.so
-    OGRE_RenderSystem_GL3Plus_LIBRARY_REL=OGRE_RenderSystem_GL3Plus_LIBRARY_REL-NOTFOUND
-    OGRE_RenderSystem_GLES2_INCLUDE_DIR=OGRE_RenderSystem_GLES2_INCLUDE_DIR-NOTFOUND
-    OGRE_RenderSystem_GLES2_LIBRARY_DBG=OGRE_RenderSystem_GLES2_LIBRARY_DBG-NOTFOUND
+    OGRE_RenderSystem_GL3Plus_LIBRARY_REL=/lib/OGRE/RenderSystem_GL3Plus.so
+    OGRE_RenderSystem_GLES2_FOUND=TRUE
+    OGRE_RenderSystem_GLES2_INCLUDE_DIR=/usr/include/OGRE/RenderSystems/GLES2/
+    OGRE_RenderSystem_GLES2_INCLUDE_DIRS=/usr/include/OGRE/RenderSystems/GLES2/
+    OGRE_RenderSystem_GLES2_LIBRARIES=optimized;/lib/OGRE/RenderSystem_GLES2.so;debug;/lib/OGRE/RenderSystem_GLES2.so
+    OGRE_RenderSystem_GLES2_LIBRARY=optimized;/lib/OGRE/RenderSystem_GLES2.so;debug;/lib/OGRE/RenderSystem_GLES2.so
+    OGRE_RenderSystem_GLES2_LIBRARY_DBG=/lib/OGRE/RenderSystem_GLES2.so
-    OGRE_RenderSystem_GLES2_LIBRARY_REL=OGRE_RenderSystem_GLES2_LIBRARY_REL-NOTFOUND
-    OGRE_Terrain_INCLUDE_DIR=OGRE_Terrain_INCLUDE_DIR-NOTFOUND
-    OGRE_Terrain_LIBRARY_DBG=OGRE_Terrain_LIBRARY_DBG-NOTFOUND
+    OGRE_RenderSystem_GLES2_LIBRARY_REL=/lib/OGRE/RenderSystem_GLES2.so
+    OGRE_Terrain_FOUND=TRUE
+    OGRE_Terrain_INCLUDE_DIR=/usr/include/OGRE/Terrain
+    OGRE_Terrain_INCLUDE_DIRS=/usr/include/OGRE/Terrain
+    OGRE_Terrain_LIBRARIES=optimized;/usr/lib/libOgreTerrain.so;debug;/usr/lib/libOgreTerrain.so
+    OGRE_Terrain_LIBRARY=optimized;/usr/lib/libOgreTerrain.so;debug;/usr/lib/libOgreTerrain.so
+    OGRE_Terrain_LIBRARY_DBG=/usr/lib/libOgreTerrain.so
-    OGRE_Terrain_LIBRARY_REL=OGRE_Terrain_LIBRARY_REL-NOTFOUND
-    OGRE_VERSION=3.0.0
-    OGRE_VERSION_MAJOR=3
-    OGRE_VERSION_MINOR=0
-    OGRE_VERSION_NAME=Eris
-    OGRE_VERSION_PATCH=0
-    OGRE_Volume_INCLUDE_DIR=OGRE_Volume_INCLUDE_DIR-NOTFOUND
-    OGRE_Volume_LIBRARY_DBG=OGRE_Volume_LIBRARY_DBG-NOTFOUND
+    OGRE_Terrain_LIBRARY_REL=/usr/lib/libOgreTerrain.so
+    OGRE_VERSION=..
+    OGRE_Volume_FOUND=TRUE
+    OGRE_Volume_INCLUDE_DIR=/usr/include/OGRE/Volume/
+    OGRE_Volume_INCLUDE_DIRS=/usr/include/OGRE/Volume/
+    OGRE_Volume_LIBRARIES=optimized;/usr/lib/libOgreVolume.so;debug;/usr/lib/libOgreVolume.so
+    OGRE_Volume_LIBRARY=optimized;/usr/lib/libOgreVolume.so;debug;/usr/lib/libOgreVolume.so
+    OGRE_Volume_LIBRARY_DBG=/usr/lib/libOgreVolume.so
-    OGRE_Volume_LIBRARY_REL=OGRE_Volume_LIBRARY_REL-NOTFOUND
+    OGRE_Volume_LIBRARY_REL=/usr/lib/libOgreVolume.so
-    PREPROC_TEMP_VAR=#define OGRE_NO_FREEIMAGE 1
+    PREPROC_TEMP_VAR=
-    __pkg_config_arguments_OGRE_PKGC=OGRE-Next
+    __pkg_config_arguments_OGRE_PKGC=OGRE
-    _pkg_check_modules_failed= - OGRE
+    _pkg_check_modules_failed=
-    _pkgconfig_CFLAGS=-I/usr/include;-I/usr/include/OGRE-Next;-pthread
+    _pkgconfig_CFLAGS=-I/usr/include/OGRE;-pthread
-    _pkgconfig_INCLUDE_DIRS=/usr/include;/usr/include/OGRE-Next
-    _pkgconfig_LDFLAGS=-L/usr/lib;-lOgreNextMain;-lpthread
-    _pkgconfig_LIBRARIES=OgreNextMain;pthread
+    _pkgconfig_INCLUDE_DIRS=/usr/include/OGRE
+    _pkgconfig_LDFLAGS=-L/usr/lib;-lOgreMain;-lpthread
+    _pkgconfig_LIBRARIES=OgreMain;pthread
-    _pkgconfig_STATIC_CFLAGS=-I/usr/include;-I/usr/include/OGRE-Next;-pthread
+    _pkgconfig_STATIC_CFLAGS=-I/usr/include/OGRE;-pthread
-    _pkgconfig_STATIC_INCLUDE_DIRS=/usr/include;/usr/include/OGRE-Next
-    _pkgconfig_STATIC_LDFLAGS=-L/usr/lib;-lOgreNextMain;-lpthread
-    _pkgconfig_STATIC_LIBRARIES=OgreNextMain;pthread
+    _pkgconfig_STATIC_INCLUDE_DIRS=/usr/include/OGRE
+    _pkgconfig_STATIC_LDFLAGS=-L/usr/lib;-lOgreMain;-lpthread
+    _pkgconfig_STATIC_LIBRARIES=OgreMain;pthread
-    _pkgconfig_VERSION=3.0.0
-    _pkgconfig_error=Package 'OGRE', required by 'virtual:world', not found
+    _pkgconfig_VERSION=14.3.1
+    _pkgconfig_error=
-    _pkgconfig_retval=1
+    _pkgconfig_retval=0
+    pkgcfg_lib_OGRE_PKGC_OgreMain=/usr/lib/libOgreMain.so

[Apteryks]

Thanks for the visualizer!