Arch Linux theora compilation CMake error 'Could not find a configuration file for package "Ogg" that is compatible with requested version '

[gioan777]

Trying to build the repo fails on my machine. I'm not sure what causes it
From a little investigating it fails when it tries to build 'theora' which it does from the build-cmakelibs.sh file
BTW manually cloning the theora repo with the pull request and running cmake without any options builds normally.
Here's the log.

[100%] Linking CXX static library ../../lib/libjsoncpp.a
[100%] Built target jsoncpp_static
Install the project...
-- Install configuration: "RelWithDebInfo"
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/lib/pkgconfig/jsoncpp.pc
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/lib/cmake/jsoncpp/jsoncpp-targets.cmake
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/lib/cmake/jsoncpp/jsoncpp-targets-relwithdebinfo.cmake
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/lib/cmake/jsoncpp/jsoncppConfigVersion.cmake
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/lib/cmake/jsoncpp/jsoncppConfig.cmake
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/lib/cmake/jsoncpp/jsoncpp-namespaced-targets.cmake
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/lib/libjsoncpp.a
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/include/json/allocator.h
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/include/json/assertions.h
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/include/json/config.h
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/include/json/forwards.h
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/include/json/json.h
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/include/json/json_features.h
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/include/json/reader.h
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/include/json/value.h
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/include/json/version.h
-- Installing: /home/george/.local/share/ps2dev/ps2sdk/ports/include/json/writer.h
CMake Warning:
  Ignoring extra path from command line:

   "/home/george/Repos/emu_repos/ps2dev/build/ps2sdk-ports/build/theora/build"


CMake Warning:
  Ignoring extra path from command line:

   "."


-- The C compiler identification is GNU 11.3.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /home/george/.local/share/ps2dev/ee/bin/mips64r5900el-ps2-elf-gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
CMake Error at CMakeLists.txt:7 (FIND_PACKAGE):
  Could not find a configuration file for package "Ogg" that is compatible
  with requested version "".

  The following configuration files were considered but not accepted:

    /usr/lib/cmake/Ogg/OggConfig.cmake, version: 1.3.5 (64bit)



-- Configuring incomplete, errors occurred!

[AKuHAK]

sudo pacman -S libogg
doesnt help?

[gioan777]

Nope. I already had libogg installed. Also installed libogg-lib32 just in case, but unfortunately it didn't help.

[AKuHAK]

I am not sure, if this is really related to ps2sdk-ports, probably you should post it here: xiph/theora#14

[gioan777]

That's what I thought as well, but git pulling the relevant repo pull request and manually cmake .. and make worked without any issue, so I figured it's either an issue with my system or the build script's cmake parameters.
Still it's more likely I did something wrong with my system, I'm currently double checking.

[gioan777]

So after testing in two VMs (Arch Linux, where it had the same error and Ubuntu 22.04 LTS where it worked flawlessly) I discovered the culrpit is cmake.
The key seems to be the warnings, specifically

CMake Warning:
  Ignoring extra path from command line:

   "/home/george/Repos/emu_repos/ps2dev/build/ps2sdk-ports/build/theora/build"


CMake Warning:
  Ignoring extra path from command line:

   "."

For whatever reason, the cmake in Arch Linux (version 3.26.3) ignores all local cmake config files and tries to find the system ones, even if I removed the OggConfig from my system it wouldn't search the local directory and it would produce the following error

CMake Error at CMakeLists.txt:7 (FIND_PACKAGE):
  By not providing "FindOgg.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Ogg", but
  CMake did not find one.

  Could not find a package configuration file provided by "Ogg" with any of
  the following names:

    OggConfig.cmake
    ogg-config.cmake

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

, whereas Ubuntu's cmake (version cmake 3.16.3) doesn't produce the same warning and works flawlessly.
Probably adding some extra parameter in the script for cmake would fix the error, but I don't know very well how cmake works.

Edit: So I tried to compile the repo with binaries straight from cmake's website (ver 3.26.3) and it works in Ubuntu normally though now the warnings appear as well. In Arch Linux I still have the error with Ogg. I'm at a loss on what could be causing this. I didn't even have the libogg-dev package installed in Ubuntu when I built it.

Edit 2: Found a workaround/solution

For some reason even if it's literally the same executable cmake's FIND_PACKAGE behavior is different between Ubuntu and Arch. Both try to search $PS2SDK (it's included in $PATH) but for some reason only in Ubuntu it searches one layer deeper i.e. $PS2SDK/ports where it finds the rest of the path "lib/cmake/Ogg/OggConfig.conf". In Arch it only searches $PS2SDK and then it gives up.

Specifying $PS2SDK/ports by adding the following cmake parameter
"-DCMAKE_PREFIX_PATH=$PS2SDK/ports"
in the build-cmake script solves the issue and ps2sdk-ports compiles normally under Arch.

Sry for the spamming.

[AKuHAK]

I think that you can provide the PR. This modification is safe for another platforms, so it will not break anything.