[package] openimageio/likely all: Unclear handling of dependencies

[irieger]

Description

OpenImageIO was just updated the last two days to largely simplify #28616 and then add the long awaited 3.x version #28618. I really like the simplification but the change in dependency handling brings a problem:

Step 1: Finding a problem im my local CCI "clone"

I'm using a branch based on CCI master but sometimes integrating updates not yet accepted in upstream. Like I had for my openimageio recipe for 3.1.6.2. Now that it was officially integrated, I removed my changes and started a rebuild to test if everything works with it. However I also have #28342 merged into my branch. Now I got the following error:

...
[ 69%] Building CXX object src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/__/jpeg2000.imageio/jpeg2000input.cpp.o
[ 70%] Building CXX object src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/__/jpeg2000.imageio/jpeg2000output.cpp.o
/home/.conan2/p/b/openia9740709237a7/b/src/src/jpeg2000.imageio/jpeg2000output.cpp:27:14: fatal error: openjph/ojph_arg.h: No such file or directory
   27 | #    include <openjph/ojph_arg.h>
      |              ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
gmake[2]: *** [src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/build.make:1157: src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/__/jpeg2000.imageio/jpeg2000output.cpp.o] Error 1
gmake[2]: *** Waiting for unfinished jobs....
/home/.conan2/p/b/openia9740709237a7/b/src/src/jpeg2000.imageio/jpeg2000input.cpp:19:14: fatal error: openjph/ojph_codestream.h: No such file or directory
   19 | #    include <openjph/ojph_codestream.h>
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
gmake[2]: *** [src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/build.make:1143: src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/__/jpeg2000.imageio/jpeg2000input.cpp.o] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:1172: src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/all] Error 2
gmake: *** [Makefile:156: all] Error 2
openimageio/3.1.6.2: ERROR: 
Package 'e64cb916065c21bd1c0f9675de115c67705bd9e7' build failed

Step 2: Root cause analysis

After that, I looked into the conanfile.py and saw that openjph isn't anywhere in there. So I digged into the OpenImageIO sources. The Cmake lists:

# in externalpackages.cmake
...
checked_find_package (openjph VERSION_MIN 0.21.2)
...

# in jpeg2000.imageio/CMakeLists.txt
...
    if (openjph_FOUND)
        list(APPEND _jpeg2000_defs "USE_OPENJPH")
    endif()

    add_oiio_plugin(jpeg2000input.cpp jpeg2000output.cpp
        INCLUDE_DIRS ${_jpeg2000_includes}
        LINK_DIRECTORIES ${_jpeg2000_lib_dirs}
        LINK_LIBRARIES ${_jpeg2000_libs}
                       $<TARGET_NAME_IF_EXISTS:openjph>
        DEFINITIONS ${_jpeg2000_defs}

So in this case openjph isn't yet setup as a dependency of openimageio, but openexr in version 3.4.1 uses it. So due to the indirect dependency, openjph is added in the generators. So independently of the settings, checked_find_package finds it. However I guess due to it not being a direct dependency, even in that branch adding it, deps.set_property("openjph", "cmake_target_name", "openjph") might not have an effect.

Also when debugging I saw that even with -o:a '&:with_ffmpeg=False' ffmpeg was found (which is installed on my MacBook via brew to be used as a command line tool). When the test_package builds, it fails to link as ffmpeg isn't configured as a dependency then.

The previous patches - yes they are a bit ugly - ensured that only when the user requests optional dependencies, they are detected and included. With the recent changes, this concept is broken and non-conan libraries might be linked which I guess isn't the intention. I think we need to discuss how to solve this.

Also the changes from #28616, which removed all the USE_* variables from the CMakeLists.txt but they are still set.

I have also created #28626 to add the direct optional dependency. But I kept away from trying to fix the other problem cause I think it should be discussed before doing any action from my side.

Package and Environment Details

• Package Name/Version: openimageio/3.1.6.2
• Operating System+version: Linux Ubuntu 24.04 (arm64 & x64) as well as macOS 15.7 (arm64)
• Compiler+version: GCC 13
• Docker image: conanio/gcc8
• Conan version: conan 2.20.1
• Python version: Python 3.13.7

Conan profile

[settings]
arch=armv8
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu20
compiler.libcxx=libc++
compiler.version=15
os=Macos

[conf]
tools.build:cflags =+ ["-mcpu=apple-m1", "-mtune=apple-m2"]
tools.build:cxxflags =+ ["-mcpu=apple-m1", "-mtune=apple-m2"]

Steps to reproduce

Option 1 to have it fail:

brew install ffmpeg  # For the example of externally installed dependencies being detected
conan create all --version=3.1.6.2 --build=missing -o:a '&:with_ffmpeg=False' --update

Option 2 with conan providing a dependency internally

conan install openexr/3.x --version=3.4.1  # with my branch from #28342 checked out
conan create all --version=3.1.6.2 --build=missing -o:a '&:with_ffmpeg=False' --update -o:a '&:with_openjph=False'  # with the branch from #28626. with_ffmpeg=True (default) is also fine, but as it is very heavy I normally don't include it always.

There is for sure more ways to trigger that problem. This is two places I experienced and I think they should generally show the problem well enough.

Logs

Click to expand log

ingmar@u2 [git@openimageio/openjph-fix [u]] % conan create all --version=3.1.6.2 --build=missing -o:a '&:with_ffmpeg=False' --update -o:a '&:with_openjph=False'

======== Exporting recipe to the cache ========
openimageio/3.1.6.2: Exporting package recipe: /Users/ingmar/dev/conan-center-index/recipes/openimageio/all/conanfile.py
openimageio/3.1.6.2: exports: File 'conandata.yml' found. Exporting it...
openimageio/3.1.6.2: Calling export_sources()
openimageio/3.1.6.2: Copied 1 '.py' file: conanfile.py
openimageio/3.1.6.2: Copied 1 '.yml' file: conandata.yml
openimageio/3.1.6.2: Copied 1 '.patch' file: 3.1.6.2-conan-fixes.patch
openimageio/3.1.6.2: Exported to cache folder: /Users/ingmar/.conan2/p/openi459b8f1d12292/e
openimageio/3.1.6.2: Exported: openimageio/3.1.6.2#2af06ba017a5a9e2dd32f5717d7e20a7 (2025-10-17 17:45:52 UTC)

======== Input profiles ========
Profile host:
[settings]
arch=armv8
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu20
compiler.libcxx=libc++
compiler.version=15
os=Macos
[options]
&:with_ffmpeg=False
&:with_openjph=False
[conf]
tools.build:cflags=['-mcpu=apple-m1', '-mtune=apple-m2']
tools.build:cxxflags=['-mcpu=apple-m1', '-mtune=apple-m2']

Profile build:
[settings]
arch=armv8
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu20
compiler.libcxx=libc++
compiler.version=15
os=Macos
[options]
&:with_ffmpeg=False
&:with_openjph=False
[conf]
tools.build:cflags=['-mcpu=apple-m1', '-mtune=apple-m2']
tools.build:cxxflags=['-mcpu=apple-m1', '-mtune=apple-m2']


======== Computing dependency graph ========
openimageio/3.1.6.2: Checking remote: conancenter
Connecting to remote 'conancenter' anonymously
zlib/1.3.1: Checking remote: conancenter
libtiff/4.6.0: Checking remote: conancenter
xz_utils/5.4.5: Checking remote: conancenter
libjpeg/9f: Checking remote: conancenter
cmake/4.1.2: Checking remote: conancenter
imath/3.2.1: Checking remote: conancenter
openexr/3.4.1: Checking remote: conancenter
libdeflate/1.23: Checking remote: conancenter
openjph/0.24.2: Checking remote: conancenter
libjxl/0.11.1: Checking remote: conancenter
brotli/1.1.0: Checking remote: conancenter
highway/1.1.0: Checking remote: conancenter
lcms/2.17: Checking remote: conancenter
meson/1.9.1: Checking remote: conancenter
ninja/1.13.1: Checking remote: conancenter
cmake/3.31.9: Checking remote: conancenter
pugixml/1.14: Checking remote: conancenter
libsquish/1.15: Checking remote: conancenter
tsl-robin-map/1.2.1: Checking remote: conancenter
fmt/10.2.1: Checking remote: conancenter
libpng/1.6.50: Checking remote: conancenter
freetype/2.13.2: Checking remote: conancenter
bzip2/1.0.8: Checking remote: conancenter
pkgconf/2.2.0: Checking remote: conancenter
hdf5/1.14.3: Checking remote: conancenter
opencolorio/2.5.0: Checking remote: conancenter
expat/2.7.3: Checking remote: conancenter
pystring/1.1.4: Checking remote: conancenter
yaml-cpp/0.8.0: Checking remote: conancenter
minizip-ng/4.0.7: Checking remote: conancenter
zstd/1.5.7: Checking remote: conancenter
openssl/3.6.0: Checking remote: conancenter
libiconv/1.17: Checking remote: conancenter
giflib/5.2.1: Checking remote: conancenter
libheif/1.20.1: Checking remote: conancenter
libde265/1.0.15: Checking remote: conancenter
openjpeg/2.5.4: Checking remote: conancenter
ptex/2.4.2: Checking remote: conancenter
libwebp/1.5.0: Checking remote: conancenter
libultrahdr/1.4.0: Checking remote: conancenter
Graph root
    cli
Requirements
    brotli/1.1.0#406ce8f1c997f4ef7852fa01ff85ef9f - Cache (conancenter)
    bzip2/1.0.8#00b4a4658791c1f06914e087f0e792f5 - Cache (conancenter)
    expat/2.7.3#f529802a90f0758a01f498a18f8c657b - Cache (conancenter)
    fmt/10.2.1#658771bb858b77f380be2ebb22c338e9 - Cache (conancenter)
    freetype/2.13.2#18656f7a6d52256a930f1cbd79f1509d - Cache (conancenter)
    giflib/5.2.1#b2e383cdaf6dbd727ebfa15c66ea38b3 - Cache (conancenter)
    hdf5/1.14.3#37965273a7c4620f6e36c028f05e9085 - Cache (conancenter)
    highway/1.1.0#6672c75ba81fae074e51e48e6a15c69b - Cache (conancenter)
    imath/3.2.1#47a001e9196b8d377c839c4725a99772 - Cache (conancenter)
    lcms/2.17#3feb06eea368c52c82f50107cd7694cd - Cache (conancenter)
    libde265/1.0.15#487f0a141295cf2c5ce2436e0ea82174 - Cache (conancenter)
    libdeflate/1.23#4994bea7cf7e93789da161fac8e26a53 - Cache (conancenter)
    libheif/1.20.1#06a336bfa7cced1f4c7e010923d30293 - Cache (conancenter)
    libiconv/1.17#1e65319e945f2d31941a9d28cc13c058 - Cache (conancenter)
    libjpeg/9f#8edfe2699565c80c825d0256002504ff - Cache (conancenter)
    libjxl/0.11.1#328a3e4a3cb3223d2744d04d121bf78b - Cache (conancenter)
    libpng/1.6.50#c96b3b9fa67d44545d6583bb0c348904 - Cache (conancenter)
    libsquish/1.15#7f943e7d0ee7fc638d554d7a470a5f6c - Cache (conancenter)
    libtiff/4.6.0#b3fb32a80480ba4d4d9a71dd310ead02 - Cache (conancenter)
    libultrahdr/1.4.0#19f6544cb1bdd348da0c35bd6d37b096 - Cache (conancenter)
    libwebp/1.5.0#9780a46fda838fb24b8f8e56cdf1441f - Cache (conancenter)
    minizip-ng/4.0.7#54e7fcd84602ad75f591eb4bd8eee734 - Cache (conancenter)
    opencolorio/2.5.0#f5cc4a0270d9771cc3c94cd80a2bacaf - Cache (conancenter)
    openexr/3.4.1#a19b77f81bb43363cd8a1676cba097d8 - Not in remote
    openimageio/3.1.6.2#2af06ba017a5a9e2dd32f5717d7e20a7 - Not in remote
    openjpeg/2.5.4#372fbc2b4348d45ab0c0a62a8475dc2f - Cache (conancenter)
    openjph/0.24.2#3cf43c697f94792a914b3fd8d5082b2d - Cache (conancenter)
    openssl/3.6.0#89e8af1d4a21afcac0557079d23d8890 - Cache (conancenter)
    ptex/2.4.2#ba6a60f9dabd40f83df6dafa24e014e9 - Cache (conancenter)
    pugixml/1.14#c6afdcf73d71858303d8260b0d76ff91 - Cache (conancenter)
    pystring/1.1.4#ca23c56b96bc4310ae2b3d7e215bf9a3 - Cache (conancenter)
    tsl-robin-map/1.2.1#760934a48af36aaa43a1366f1dc34bd3 - Cache (conancenter)
    xz_utils/5.4.5#b885d1d79c9d30cff3803f7f551dbe66 - Cache (conancenter)
    yaml-cpp/0.8.0#131511e225a521dd94fd8b2ee2268ab2 - Cache (conancenter)
    zlib/1.3.1#b8bc2603263cf7eccbd6e17e66b0ed76 - Cache (conancenter)
    zstd/1.5.7#fde461c0d847a22f16d3066774f61b11 - Cache (conancenter)
Build requirements
    cmake/3.31.9#2032c6471fe4f5a3e17f65fed518d545 - Cache (conancenter)
    cmake/4.1.2#71e7d1fe41e6c644d602c7e4bdbac291 - Cache (conancenter)
    meson/1.9.1#abbc783cd297bedce14581b4aec060b8 - Cache (conancenter)
    ninja/1.13.1#294f8721dbcde145674f7ba44994700e - Cache (conancenter)
    pkgconf/2.2.0#4ac315b50ef734072b00ff3aacbf52bf - Cache (conancenter)
Resolved version ranges
    cmake/[>=3.16]: cmake/4.1.2
    cmake/[>=3.18 <4]: cmake/3.31.9
    cmake/[>=3.18]: cmake/4.1.2
    cmake/[>=3.19 <4]: cmake/3.31.9
    cmake/[>=3.19]: cmake/4.1.2
    cmake/[>=3.22 <5]: cmake/4.1.2
    expat/[>=2.6.2 <3]: expat/2.7.3
    imath/[>3.1.9 <4]: imath/3.2.1
    lcms/[>=2.16 <3]: lcms/2.17
    libde265/[>=1.0.12 <2]: libde265/1.0.15
    libdeflate/[>=1.19 <2]: libdeflate/1.23
    libheif/[>=1.16.2 <2]: libheif/1.20.1
    libjpeg/[>=9f]: libjpeg/9f
    libpng/[>=1.6 <2]: libpng/1.6.50
    libwebp/[>=1.3.2 <2]: libwebp/1.5.0
    meson/[>=1.2.1 <2]: meson/1.9.1
    meson/[>=1.2.2 <2]: meson/1.9.1
    meson/[>=1.3.2 <2]: meson/1.9.1
    minizip-ng/[>=4.0.3 <5]: minizip-ng/4.0.7
    ninja/[>=1.10.2 <2]: ninja/1.13.1
    opencolorio/[>=2.3.1 <4]: opencolorio/2.5.0
    openexr/[>=3.2.3 <4]: openexr/3.4.1
    openjpeg/[>=2.5.2 <3]: openjpeg/2.5.4
    openjph/[>=0.23.1 <1]: openjph/0.24.2
    openssl/[>=1.1 <4]: openssl/3.6.0
    pkgconf/[>=2.1.0 <3]: pkgconf/2.2.0
    xz_utils/[>=5.4.5 <6]: xz_utils/5.4.5
    zlib/[>=1.2.11 <2]: zlib/1.3.1
    zstd/[>=1.5.5 <2]: zstd/1.5.7

======== Computing necessary packages ========
brotli/1.1.0: WARN: Can't update, no package in remote
bzip2/1.0.8: WARN: Can't update, no package in remote
expat/2.7.3: WARN: Can't update, no package in remote
fmt/10.2.1: WARN: Can't update, no package in remote
giflib/5.2.1: WARN: Can't update, no package in remote
highway/1.1.0: WARN: Can't update, no package in remote
imath/3.2.1: WARN: Can't update, no package in remote
libde265/1.0.15: WARN: Can't update, no package in remote
libdeflate/1.23: WARN: Can't update, no package in remote
libiconv/1.17: WARN: Can't update, no package in remote
libjpeg/9f: WARN: Can't update, no package in remote
libsquish/1.15: WARN: Can't update, no package in remote
libwebp/1.5.0: WARN: Can't update, no package in remote
openjpeg/2.5.4: WARN: Can't update, no package in remote
pugixml/1.14: WARN: Can't update, no package in remote
pystring/1.1.4: WARN: Can't update, no package in remote
xz_utils/5.4.5: WARN: Can't update, no package in remote
yaml-cpp/0.8.0: WARN: Can't update, no package in remote
zlib/1.3.1: WARN: Can't update, no package in remote
zstd/1.5.7: WARN: Can't update, no package in remote
hdf5/1.14.3: WARN: Can't update, no package in remote
libheif/1.20.1: WARN: Can't update, no package in remote
libpng/1.6.50: WARN: Can't update, no package in remote
libtiff/4.6.0: WARN: Can't update, no package in remote
libultrahdr/1.4.0: WARN: Can't update, no package in remote
openssl/3.6.0: WARN: Can't update, no package in remote
ptex/2.4.2: WARN: Can't update, no package in remote
lcms/2.17: WARN: Can't update, no package in remote
minizip-ng/4.0.7: WARN: Can't update, no package in remote
openjph/0.24.2: WARN: Can't update, no package in remote
freetype/2.13.2: WARN: Can't update, no package in remote
libjxl/0.11.1: WARN: Can't update, no package in remote
openexr/3.4.1: WARN: Can't update, no package in remote
opencolorio/2.5.0: WARN: Can't update, no package in remote
openimageio/3.1.6.2: Main binary package 'fa1a452bf979af1a07bd323408b80b86c0a72104' missing
openimageio/3.1.6.2: Checking 5 compatible configurations
openimageio/3.1.6.2: '3393dc3eeff20495ecd9021f1bd8f326803af701': compiler.cppstd=17
openimageio/3.1.6.2: '6d62bf795db693752af147cd470189507150b884': compiler.cppstd=gnu17
openimageio/3.1.6.2: 'a4e41d27583492e2830bf91046e199796b64f694': compiler.cppstd=20
openimageio/3.1.6.2: '7a9a0dd8d62de7014ebf70e7bb9f405391e6a7b5': compiler.cppstd=23
openimageio/3.1.6.2: 'fcd7168ef304eaccbf881ef9162b453dc04222f8': compiler.cppstd=gnu23
Requirements
    brotli/1.1.0#406ce8f1c997f4ef7852fa01ff85ef9f:27c3eb48256dc5d2ec50ae887081dd85434e5755#efc1b1d86d5cb5f141b222896734667a - Cache
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    expat/2.7.3#f529802a90f0758a01f498a18f8c657b:10fd60dbb19c1c7b079fb35f1ca651920973f9ca#9182b57c7e05ff653d950629be3e5da6 - Cache
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    freetype/2.13.2#18656f7a6d52256a930f1cbd79f1509d:b4870ffee4add54f8c0802d2f844e0b2960d8167#32f7340bb010b78fc35185d760d271b0 - Cache
    giflib/5.2.1#b2e383cdaf6dbd727ebfa15c66ea38b3:1a8b64403f28ff0ee233a31b0edbbb8e80fa6f04#37847c8aa5f5a819a71aa3ff055580ac - Cache
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    highway/1.1.0#6672c75ba81fae074e51e48e6a15c69b:d2798b3056582ba808ca4532b320e6695e1b21ee#0d40f6f19a3ba33342099d74910b780c - Cache
    imath/3.2.1#47a001e9196b8d377c839c4725a99772:7d8b94264a42aab3ad369719e2145f7e58789ca4#34d6f90126fe708cbfcc670f8d621b62 - Cache
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    libjpeg/9f#8edfe2699565c80c825d0256002504ff:2ee39e692ca4177b4b689b15bc1f2cfdf8f83706#eb9536da1cf99d12ee3ed2bf045409bb - Cache
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    libultrahdr/1.4.0#19f6544cb1bdd348da0c35bd6d37b096:aced81a6d0edd03bb1c84f3952e1876296ae1f46#0731579618b2ec6e5b8898f8c151c1a7 - Cache
    libwebp/1.5.0#9780a46fda838fb24b8f8e56cdf1441f:4a23900e07eb8f1d3305b7aa3139a424b81b87ba#f04401db20bbbbd77b481122db759217 - Cache
    minizip-ng/4.0.7#54e7fcd84602ad75f591eb4bd8eee734:6f1a00e919f5c7ba78864c079c536fe72f2a7e32#e7349d9d6c7b8a90b128e6972b10d222 - Cache
    opencolorio/2.5.0#f5cc4a0270d9771cc3c94cd80a2bacaf:1ceb5c01ecf30e6d3125105c940e476832c94c4b#b0ea9bd656b547a836c206d54165e356 - Cache
    openexr/3.4.1#a19b77f81bb43363cd8a1676cba097d8:18e2eda904462126f29d404ff4d5f9f2e9a4597d#379e4ec51f766d1cfdc91dc985fd0857 - Cache
    openimageio/3.1.6.2#2af06ba017a5a9e2dd32f5717d7e20a7:fa1a452bf979af1a07bd323408b80b86c0a72104 - Build
    openjpeg/2.5.4#372fbc2b4348d45ab0c0a62a8475dc2f:2ee39e692ca4177b4b689b15bc1f2cfdf8f83706#0aa9acdb4ae67eda76320a2ed6cd16c2 - Cache
    openjph/0.24.2#3cf43c697f94792a914b3fd8d5082b2d:5bb8dcb70f3519044fde8ea91a18b9310f960472#d31f6d8ffc488e1e8d09232d89862088 - Cache
    openssl/3.6.0#89e8af1d4a21afcac0557079d23d8890:7833c7c48ca5681090256e36ed675b071307c45a#769fede336eac3308e8eb7451d81ef96 - Cache
    ptex/2.4.2#ba6a60f9dabd40f83df6dafa24e014e9:8d470cc14b8bafde8d1f547e7778a516332ce6b4#390f41acefc807ee29b220426cc6f023 - Cache
    pugixml/1.14#c6afdcf73d71858303d8260b0d76ff91:ceca761232cddd1acfae34fbf3ac7e998f2d71da#8d9496f33ab9ec19fe667ba2a48e7304 - Cache
    pystring/1.1.4#ca23c56b96bc4310ae2b3d7e215bf9a3:7d8b94264a42aab3ad369719e2145f7e58789ca4#278e013d4240e293a4088830399ea991 - Cache
    tsl-robin-map/1.2.1#760934a48af36aaa43a1366f1dc34bd3:da39a3ee5e6b4b0d3255bfef95601890afd80709#1e635be8167060da3c9d7da2fd8cadfb - Cache
    xz_utils/5.4.5#b885d1d79c9d30cff3803f7f551dbe66:2ee39e692ca4177b4b689b15bc1f2cfdf8f83706#c60321477189965a07e23a35e4c94b95 - Cache
    yaml-cpp/0.8.0#131511e225a521dd94fd8b2ee2268ab2:7d8b94264a42aab3ad369719e2145f7e58789ca4#57f01b445cdc091d0ed6eec4060c324a - Cache
    zlib/1.3.1#b8bc2603263cf7eccbd6e17e66b0ed76:2ee39e692ca4177b4b689b15bc1f2cfdf8f83706#8d9588013498ed1d416ed5ca75062608 - Cache
    zstd/1.5.7#fde461c0d847a22f16d3066774f61b11:76dad4e6c83dde347fd81bafee7e53584d62846e#2960ab73a78666497342466dced80cfb - Cache
Build requirements
    cmake/4.1.2#71e7d1fe41e6c644d602c7e4bdbac291:9e5323c65b94ae38c3c733fe12637776db0119a5#5611fa55ffc5af898b71731375f91603 - Cache
Skipped binaries
    cmake/3.31.9, meson/1.9.1, ninja/1.13.1, pkgconf/2.2.0

======== Installing packages ========
brotli/1.1.0: Already installed! (1 of 37)
bzip2/1.0.8: Already installed! (2 of 37)
cmake/4.1.2: Already installed! (3 of 37)
expat/2.7.3: Already installed! (4 of 37)
fmt/10.2.1: Already installed! (5 of 37)
giflib/5.2.1: Already installed! (6 of 37)
highway/1.1.0: Already installed! (7 of 37)
imath/3.2.1: Already installed! (8 of 37)
libde265/1.0.15: Already installed! (9 of 37)
libdeflate/1.23: Already installed! (10 of 37)
libiconv/1.17: Already installed! (11 of 37)
libjpeg/9f: Already installed! (12 of 37)
libsquish/1.15: Already installed! (13 of 37)
libwebp/1.5.0: Already installed! (14 of 37)
openjpeg/2.5.4: Already installed! (15 of 37)
pugixml/1.14: Already installed! (16 of 37)
pystring/1.1.4: Already installed! (17 of 37)
tsl-robin-map/1.2.1: Already installed! (18 of 37)
xz_utils/5.4.5: Already installed! (19 of 37)
yaml-cpp/0.8.0: Already installed! (20 of 37)
zlib/1.3.1: Already installed! (21 of 37)
zstd/1.5.7: Already installed! (22 of 37)
lcms/2.17: Already installed! (23 of 37)
hdf5/1.14.3: Already installed! (24 of 37)
libheif/1.20.1: Already installed! (25 of 37)
libpng/1.6.50: Already installed! (26 of 37)
libtiff/4.6.0: Already installed! (27 of 37)
libultrahdr/1.4.0: Already installed! (28 of 37)
openssl/3.6.0: Already installed! (29 of 37)
ptex/2.4.2: Already installed! (30 of 37)
libjxl/0.11.1: Already installed! (31 of 37)
minizip-ng/4.0.7: Already installed! (32 of 37)
openjph/0.24.2: Already installed! (33 of 37)
freetype/2.13.2: Already installed! (34 of 37)
openexr/3.4.1: Already installed! (35 of 37)
opencolorio/2.5.0: Already installed! (36 of 37)

-------- Installing package openimageio/3.1.6.2 (37 of 37) --------
openimageio/3.1.6.2: Building from source
openimageio/3.1.6.2: Package openimageio/3.1.6.2:fa1a452bf979af1a07bd323408b80b86c0a72104
openimageio/3.1.6.2: settings: os=Macos arch=armv8 compiler=apple-clang compiler.cppstd=gnu20 compiler.libcxx=libc++ compiler.version=15 build_type=Release
openimageio/3.1.6.2: options: fPIC=True shared=False with_dicom=False with_ffmpeg=False with_freetype=True with_giflib=True with_hdf5=True with_libheif=True with_libjpeg=libjpeg with_libjxl=True with_libpng=True with_libultrahdr=True with_libwebp=True with_opencolorio=True with_opencv=False with_openjpeg=True with_openjph=False with_openvdb=False with_ptex=True with_raw=False with_tbb=False
openimageio/3.1.6.2: requires: libjxl/0.11.Z highway/1.1.Z pugixml/1.14.Z libsquish/1.15.Z tsl-robin-map/1.2.1#760934a48af36aaa43a1366f1dc34bd3:da39a3ee5e6b4b0d3255bfef95601890afd80709 fmt/10.2.Z freetype/2.13.Z libpng/1.6.Z brotli/1.1.Z hdf5/1.14.Z opencolorio/2.5.Z expat/2.7.Z openexr/3.4.Z libdeflate/1.23.Z openjph/0.24.Z libtiff/4.6.Z imath/3.2.Z pystring/1.1.Z yaml-cpp/0.8.Z minizip-ng/4.0.Z bzip2/1.0.Z xz_utils/5.4.Z zstd/1.5.Z openssl/3.6.Z libiconv/1.17.Z lcms/2.17.Z giflib/5.2.Z libheif/1.20.Z libde265/1.0.Z openjpeg/2.5.Z ptex/2.4.Z zlib/1.3.Z libwebp/1.5.Z libultrahdr/1.4.Z libjpeg/9f
openimageio/3.1.6.2: Copying sources to build folder
openimageio/3.1.6.2: Building your package in /Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b
openimageio/3.1.6.2: Calling generate()
openimageio/3.1.6.2: Generators folder: /Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/build/Release/generators
openimageio/3.1.6.2: CMakeToolchain generated: conan_toolchain.cmake
openimageio/3.1.6.2: CMakeToolchain generated: /Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/build/Release/generators/CMakePresets.json
openimageio/3.1.6.2: CMakeToolchain generated: /Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/src/CMakeUserPresets.json
openimageio/3.1.6.2: CMakeDeps necessary find_package() and targets for your CMakeLists.txt
    find_package(JXL)
    find_package(pugixml)
    find_package(libsquish)
    find_package(Robinmap)
    find_package(fmt)
    find_package(freetype)
    find_package(PNG)
    find_package(HDF5)
    find_package(OpenColorIO)
    find_package(OpenEXR)
    find_package(TIFF)
    find_package(Imath)
    find_package(GIF)
    find_package(libheif)
    find_package(OpenJPEG)
    find_package(ptex)
    find_package(ZLIB)
    find_package(WebP)
    find_package(libuhdr)
    find_package(JPEG)
    target_link_libraries(... libjxl::libjxl pugixml::pugixml libsquish::libsquish tsl::robin_map fmt::fmt Freetype::Freetype PNG::PNG HDF5::HDF5 OpenColorIO::OpenColorIO OpenEXR::OpenEXR TIFF::TIFF Imath::Imath GIF::GIF libheif::heif openjp2 Ptex::Ptex_static ZLIB::ZLIB libwebp::libwebp libuhdr::libuhdr JPEG::JPEG)
openimageio/3.1.6.2: Generating aggregated env files
openimageio/3.1.6.2: Generated aggregated env files: ['conanbuild.sh', 'conanrun.sh']
openimageio/3.1.6.2: Calling build()
openimageio/3.1.6.2: Running CMake.configure()
openimageio/3.1.6.2: RUN: cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="generators/conan_toolchain.cmake" -DCMAKE_INSTALL_PREFIX="/Users/ingmar/.conan2/p/b/openi26535ebdb83c5/p" -DUSE_JXL="ON" -DBUILD_MISSING_ROBINMAP="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_Robinmap="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_pugixml="ON" -DINTERNALIZE_FMT="OFF" -DROBINMAP_INCLUDES="/Users/ingmar/.conan2/p/tsl-ra6e09c6f03a15/p/include" -DIMATH_INCLUDES="/Users/ingmar/.conan2/p/b/imath5cd49ea8b16f8/p/include" -DOPENEXR_INCLUDES="/Users/ingmar/.conan2/p/b/opene1d275da41e618/p/include" -DCMAKE_REQUIRE_FIND_PACKAGE_PNG="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_Freetype="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_OpenColorIO="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_OpenCV="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_TBB="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_DCMTK="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_GIF="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_Libheif="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_LibRaw="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_OpenJPEG="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_openjph="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_Ptex="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_WebP="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_JXL="ON" -DCMAKE_DISABLE_FIND_PACKAGE_libjpeg-turbo="ON" -DCMAKE_DISABLE_FIND_PACKAGE_R3DSDK="ON" -DCMAKE_DISABLE_FIND_PACKAGE_Nuke="ON" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "/Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/src"
-- Using Conan toolchain: /Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/build/Release/generators/conan_toolchain.cmake
-- Conan toolchain: Setting CMAKE_POSITION_INDEPENDENT_CODE=ON (options.fPIC)
-- Conan toolchain: Defining libcxx as C++ flags: -stdlib=libc++
-- Conan toolchain: C++ Standard 20 with extensions ON
-- Conan toolchain: Setting BUILD_SHARED_LIBS = OFF
-- The CXX compiler identification is AppleClang 17.0.0.17000013
-- The C compiler identification is AppleClang 17.0.0.17000013
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Configuring OpenImageIO 3.1.6.2
-- CMake 4.1.2
-- CMake system           = Darwin-24.6.0
-- CMake system name      = Darwin
-- Project source dir     = /Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/src
-- Project build dir      = /Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/build/Release
-- Project install prefix = /Users/ingmar/.conan2/p/b/openi26535ebdb83c5/p
-- Configuration types    = 
-- Build type             = Release
-- Supported release      = ON
-- CMAKE_UNITY_BUILD_MODE = 
-- CMAKE_UNITY_BUILD_BATCH_SIZE = 
-- Outer namespace PROJ_OUTER_NAMESPACE:   OpenImageIO
-- Inner namespace PROJ_VERSION_NAMESPACE: v3_1
-- Joint namespace PROJ_NAMESPACE_V:       OpenImageIO_v3_1
-- CMAKE_CXX_COMPILER     = /usr/bin/c++
-- CMAKE_CXX_COMPILER_ID  = AppleClang
-- Building with C++20, downstream minimum C++17
-- Compiling with SIMD level 
-- clang-format found: /opt/homebrew/bin/clang-format
-- 
-- * Checking for dependencies...
-- *   - Missing a dependency 'Package'?
-- *     Try cmake -DPackage_ROOT=path or set environment var Package_ROOT=path
-- *     For many dependencies, we supply src/build-scripts/build_Package.bash
-- *   - To exclude an optional dependency (even if found),
-- *     -DUSE_Package=OFF or set environment var USE_Package=OFF 
-- 
-- Found ZLIB 1.3.1 
-- Found Imath 3.2.1 
-- Found OpenEXR 3.4.1 
-- libjpeg-turbo library not found 
--     Try setting libjpeg-turbo_ROOT ?
--     Maybe this will help:  src/build-scripts/build_libjpeg-turbo.bash
-- Found JPEG 9f 
-- Found libuhdr 1.4.0 
-- Found TIFF 4.6.0 
-- Found JXL 0.11.1 
-- Found pugixml 1.14 
-- Found PNG 1.6.50 
-- Conan: Target declared 'Freetype::Freetype'
-- Conan: Including build module from '/Users/ingmar/.conan2/p/b/freet803a8449d2fc4/p/lib/cmake/conan-official-freetype-variables.cmake'
-- Found Freetype 26.1.20 
-- Found OpenColorIO 2.5.0 
-- Forcing optional of disabled OpenCV
-- Not using OpenCV -- disabled  
-- Forcing optional of disabled TBB
-- Not using TBB -- disabled  
-- Forcing optional of disabled DCMTK
-- Not using DCMTK -- disabled  
-- Found FFmpeg 8.0 
-- Found GIF 5.2.1 
-- Conan: Target declared 'libheif::heif'
-- Found Libheif 1.20.1 
-- Forcing optional of disabled LibRaw
-- Not using LibRaw -- disabled  
-- Found OpenJPEG 2.5.4 
-- Found openjph 0.24.2 
-- Forcing optional of disabled OpenVDB
-- Not using OpenVDB -- disabled  
-- Conan: Component target declared 'Ptex::Ptex_static'
-- Found Ptex 2.4.2 from CONFIG
-- Found WebP 1.5.0 
-- Forcing optional of disabled R3DSDK
-- Not using R3DSDK -- disabled  
-- Forcing optional of disabled Nuke
-- Not using Nuke -- disabled  
-- Found BZip2 1.0.8 
-- Found Robinmap 1.2.1 
-- Found fmt 10.2.1 
-- All build dependencies: BZip2 1.0.8;FFmpeg 8.0;fmt 10.2.1;Freetype 26.1.20;GIF 5.2.1;Imath 3.2.1;JPEG 9f;JXL 0.11.1;Libheif 1.20.1;libjpeg-turbo NONE;libuhdr 1.4.0;OpenColorIO 2.5.0;OpenEXR 3.4.1;OpenJPEG 2.5.4;openjph 0.24.2;PNG 1.6.50;Ptex 2.4.2;pugixml 1.14;Robinmap 1.2.1;TIFF 4.6.0;WebP 1.5.0;ZLIB 1.3.1
CMake Warning at src/dicom.imageio/CMakeLists.txt:10 (message):
  DICOM plugin will not be built, no DCMTK


-- OpenEXR core library will not be used by default
CMake Warning at src/raw.imageio/CMakeLists.txt:12 (message):
  Raw plugin will not be built


-- OpenEXR core library will not be used by default
-- 

   WARNING: Qt or OpenGL not found -- 'iv' will not be built!

-- Not building Python bindings: USE_PYTHON=OFF, Python3_Development.Module_FOUND=
-- 
-- =========================================================================
-- = Dependency report                                                     =
-- =========================================================================
-- 
-- The following dependencies found externally:
--     BZip2 1.0.8
--     FFmpeg 8.0
--     fmt 10.2.1
--     Freetype 26.1.20
--     GIF 5.2.1
--     Imath 3.2.1
--     JPEG 9f
--     JXL 0.11.1
--     Libheif 1.20.1
--     libuhdr 1.4.0
--     OpenColorIO 2.5.0
--     OpenEXR 3.4.1
--     OpenJPEG 2.5.4
--     openjph 0.24.2
--     PNG 1.6.50
--     Ptex 2.4.2
--     pugixml 1.14
--     Robinmap 1.2.1
--     TIFF 4.6.0
--     WebP 1.5.0
--     ZLIB 1.3.1
-- The following dependencies were not found:
--     libjpeg-turbo  
-- 
-- For some of these, we can build them locally:
--     libjpeg-turbo
-- To build them automatically if not found, build again with option:
--     -DOpenImageIO_BUILD_MISSING_DEPS=all
-- 
-- =========================================================================
-- 
-- Configuring done (1.6s)
-- Generating done (0.1s)
CMake Warning:
  Manually-specified variables were not used by the project:

    BUILD_MISSING_ROBINMAP
    CMAKE_DISABLE_FIND_PACKAGE_Nuke
    CMAKE_DISABLE_FIND_PACKAGE_R3DSDK
    CMAKE_REQUIRE_FIND_PACKAGE_DCMTK
    CMAKE_REQUIRE_FIND_PACKAGE_LibRaw
    CMAKE_REQUIRE_FIND_PACKAGE_OpenCV
    CMAKE_REQUIRE_FIND_PACKAGE_TBB
    INTERNALIZE_FMT


-- Build files have been written to: /Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/build/Release

openimageio/3.1.6.2: Running CMake.build()
openimageio/3.1.6.2: RUN: cmake --build "/Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/build/Release" -- -j10
[  0%] Generating ../../include/OpenImageIO/detail/fmt
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[  1%] Generating ../../include/OpenImageIO/detail/fmt/core.h, ../../include/OpenImageIO/detail/fmt/format-inl.h, ../../include/OpenImageIO/detail/fmt/format.h, ../../include/OpenImageIO/detail/fmt/ostream.h, ../../include/OpenImageIO/detail/fmt/printf.h, ../../include/OpenImageIO/detail/fmt/std.h, ../../include/OpenImageIO/detail/fmt/chrono.h
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[ 70%] Building CXX object src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/__/jpegxl.imageio/jxlinput.cpp.o
/Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/src/src/jpeg2000.imageio/jpeg2000input.cpp:19:14: fatal error: 'openjph/ojph_codestream.h' file not found
   19 | #    include <openjph/ojph_codestream.h>
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[ 70%] Building CXX object src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/__/jpegxl.imageio/jxloutput.cpp.o
1 error generated.
make[2]: *** [src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/__/jpeg2000.imageio/jpeg2000input.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/src/src/jpeg2000.imageio/jpeg2000output.cpp:27:14: fatal error: 'openjph/ojph_arg.h' file not found
   27 | #    include <openjph/ojph_arg.h>
      |              ^~~~~~~~~~~~~~~~~~~~
1 error generated.
make[2]: *** [src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/__/jpeg2000.imageio/jpeg2000output.cpp.o] Error 1
make[1]: *** [src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/all] Error 2
make: *** [all] Error 2

openimageio/3.1.6.2: ERROR: 
Package 'fa1a452bf979af1a07bd323408b80b86c0a72104' build failed
openimageio/3.1.6.2: WARN: Build folder /Users/ingmar/.conan2/p/b/openi26535ebdb83c5/b/build/Release
ERROR: openimageio/3.1.6.2: Error in build() method, line 272
        cmake.build()
        ConanException: Error 2 while executing

[irieger]

@jcar87 Ping for visibility as you created the two PRs and asked for feedback.

[irieger]

Another finding:

Click to expand log

-------- Installing package openimageio/3.1.6.2 (87 of 87) --------
openimageio/3.1.6.2: Building from source
openimageio/3.1.6.2: Package openimageio/3.1.6.2:eb908d759a207e244c3e1f9a14832f503b0fc983
openimageio/3.1.6.2: settings: os=Linux arch=armv8 compiler=gcc compiler.cppstd=20 compiler.libcxx=libstdc++11 compiler.version=13 build_type=Release
openimageio/3.1.6.2: options: shared=True with_dicom=False with_ffmpeg=False with_freetype=True with_giflib=True with_hdf5=True with_libheif=True with_libjpeg=libjpeg-turbo with_libjxl=True with_libpng=True with_libultrahdr=True with_libwebp=True with_opencolorio=True with_opencv=False with_openjpeg=True with_openjph=True with_openvdb=False with_ptex=False with_raw=False with_tbb=False
openimageio/3.1.6.2: requires: libjxl/0.11.Z pugixml/1.14.Z libsquish/1.15.Z tsl-robin-map/1.4.0#5589ce7c75f1036d5dde91b744817cd5:da39a3ee5e6b4b0d3255bfef95601890afd80709 fmt/12.0.Z freetype/2.13.Z libpng/1.6.Z hdf5/1.14.Z opencolorio/2.5.Z openexr/3.4.Z imath/3.2.Z giflib/5.2.Z libheif/1.20.Z openjpeg/2.5.Z openjph/0.24.Z libtiff/4.7.Z zlib/1.3.Z libwebp/1.5.Z libultrahdr/1.4.Z libjpeg-turbo/3.1.Z
openimageio/3.1.6.2: Copying sources to build folder
openimageio/3.1.6.2: Building your package in /home/.conan2/p/b/openi82ae5e0ec51f9/b
openimageio/3.1.6.2: Calling generate()
openimageio/3.1.6.2: Generators folder: /home/.conan2/p/b/openi82ae5e0ec51f9/b/build/Release/generators
openimageio/3.1.6.2: CMakeToolchain generated: conan_toolchain.cmake
openimageio/3.1.6.2: CMakeToolchain generated: /home/.conan2/p/b/openi82ae5e0ec51f9/b/build/Release/generators/CMakePresets.json
openimageio/3.1.6.2: CMakeToolchain generated: /home/.conan2/p/b/openi82ae5e0ec51f9/b/src/CMakeUserPresets.json
openimageio/3.1.6.2: Generating aggregated env files
openimageio/3.1.6.2: Generated aggregated env files: ['conanbuild.sh', 'conanrun.sh']
openimageio/3.1.6.2: Calling build()
openimageio/3.1.6.2: Running CMake.configure()
openimageio/3.1.6.2: RUN: cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="generators/conan_toolchain.cmake" -DCMAKE_INSTALL_PREFIX="/home/.conan2/p/b/openi82ae5e0ec51f9/p" -DUSE_JXL="ON" -DBUILD_MISSING_ROBINMAP="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_Robinmap="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_pugixml="ON" -DINTERNALIZE_FMT="OFF" -DROBINMAP_INCLUDES="/home/.conan2/p/tsl-r87f266d84d645/p/include" -DIMATH_INCLUDES="/home/.conan2/p/imath9b71df7bc45fe/p/include" -DOPENEXR_INCLUDES="/home/.conan2/p/opene1f76cb42772e0/p/include" -DCMAKE_REQUIRE_FIND_PACKAGE_PNG="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_Freetype="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_OpenColorIO="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_OpenCV="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_TBB="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_DCMTK="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_GIF="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_Libheif="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_LibRaw="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_OpenJPEG="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_openjph="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_Ptex="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_WebP="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_JXL="ON" -DCMAKE_DISABLE_FIND_PACKAGE_libjpeg-turbo="OFF" -DCMAKE_DISABLE_FIND_PACKAGE_R3DSDK="ON" -DCMAKE_DISABLE_FIND_PACKAGE_Nuke="ON" -DCMAKE_BUILD_RPATH="/home/.conan2/p/b/libjx18fd7083a59ed/p/lib;/home/.conan2/p/highw017706bae916b/p/lib;/home/.conan2/p/pugix67cf210864077/p/lib;/home/.conan2/p/b/libsqca3163cf74398/p/lib;/home/.conan2/p/fmtd4f54233d8435/p/lib;/home/.conan2/p/freetfd67f48bbd6eb/p/lib;/home/.conan2/p/libpn29bcbed5c9859/p/lib;/home/.conan2/p/brotlc73678b14107a/p/lib;/home/.conan2/p/hdf5c7e243b808e25/p/lib;/home/.conan2/p/b/opencbc200879e0178/p/lib;/home/.conan2/p/expat355f574079013/p/lib;/home/.conan2/p/opene1f76cb42772e0/p/lib;/home/.conan2/p/libde7a34281383094/p/lib;/home/.conan2/p/imath9b71df7bc45fe/p/lib;/home/.conan2/p/pystrf1350594d314f/p/lib;/home/.conan2/p/yaml-18d12bf8e6d12/p/lib;/home/.conan2/p/miniz662f208ed4bf7/p/lib;/home/.conan2/p/bzip20afe4bef6c3a0/p/lib;/home/.conan2/p/zstd0fc4bb4be4601/p/lib;/home/.conan2/p/opensc780220d7e5f2/p/lib;/home/.conan2/p/libicb8679a5cdef9c/p/lib;/home/.conan2/p/lcmsddbe973ba0f47/p/lib;/home/.conan2/p/b/gifliefb90a69588fe/p/lib;/home/.conan2/p/libhe869b20bca786d/p/lib;/home/.conan2/p/libde2bab4360c4495/p/lib;/home/.conan2/p/b/openjc94bbfb4c55ec/p/lib;/home/.conan2/p/openjc862f7813b01c/p/lib;/home/.conan2/p/libti68042c030b9fe/p/lib;/home/.conan2/p/zlib4ae60bf36c946/p/lib;/home/.conan2/p/xz_ut4ecc7409e2aa6/p/lib;/home/.conan2/p/libweb347fc976741d/p/lib;/home/.conan2/p/b/libulf08d7068417d9/p/lib;/home/.conan2/p/b/libjp63f0a2e1c54b0/p/lib" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "/home/.conan2/p/b/openi82ae5e0ec51f9/b/src"
-- Using Conan toolchain: /home/.conan2/p/b/openi82ae5e0ec51f9/b/build/Release/generators/conan_toolchain.cmake
-- Conan toolchain: C++ Standard 20 with extensions OFF
-- Conan toolchain: Setting BUILD_SHARED_LIBS = ON
-- The CXX compiler identification is GNU 13.3.0
-- The C compiler identification is GNU 13.3.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Configuring OpenImageIO 3.1.6.2
-- CMake 4.1.2
-- CMake system           = Linux-6.14.8-400.asahi.fc41.aarch64+16k
-- CMake system name      = Linux
-- Project source dir     = /home/.conan2/p/b/openi82ae5e0ec51f9/b/src
-- Project build dir      = /home/.conan2/p/b/openi82ae5e0ec51f9/b/build/Release
-- Project install prefix = /home/.conan2/p/b/openi82ae5e0ec51f9/p
-- Configuration types    = 
-- Build type             = Release
-- Supported release      = ON
-- CMAKE_UNITY_BUILD_MODE = 
-- CMAKE_UNITY_BUILD_BATCH_SIZE = 
-- Outer namespace PROJ_OUTER_NAMESPACE:   OpenImageIO
-- Inner namespace PROJ_VERSION_NAMESPACE: v3_1
-- Joint namespace PROJ_NAMESPACE_V:       OpenImageIO_v3_1
-- CMAKE_CXX_COMPILER     = /usr/bin/c++
-- CMAKE_CXX_COMPILER_ID  = GNU
-- Building with C++20, downstream minimum C++17
-- Compiling with SIMD level 
-- clang-format found: /usr/bin/clang-format
-- 
-- * Checking for dependencies...
-- *   - Missing a dependency 'Package'?
-- *     Try cmake -DPackage_ROOT=path or set environment var Package_ROOT=path
-- *     For many dependencies, we supply src/build-scripts/build_Package.bash
-- *   - To exclude an optional dependency (even if found),
-- *     -DUSE_Package=OFF or set environment var USE_Package=OFF 
-- 
-- Found ZLIB 1.3.1 
-- Found Imath 3.2.1 
CMake Warning at /home/.conan2/p/cmake8727fc31fb1f7/p/share/cmake-4.1/Modules/CMakeFindDependencyMacro.cmake:78 (find_package):
  for module openjph already called with REQUIRED, thus
  CMAKE_REQUIRE_FIND_PACKAGE_openjph has no effect.
Call Stack (most recent call first):
  /home/.conan2/p/b/openi82ae5e0ec51f9/b/build/Release/generators/OpenEXRConfig.cmake:24 (find_dependency)
  src/cmake/dependency_utils.cmake:391 (find_package)
  src/cmake/externalpackages.cmake:58 (checked_find_package)
  CMakeLists.txt:227 (include)
-- Found OpenEXR 3.4.1 
-- Found libjpeg-turbo 3.1.2 
-- Found libuhdr 1.4.0 
-- Found TIFF 4.7.1 
-- Found JXL 0.11.1 
-- Found pugixml 1.14 
-- Found PNG 1.6.50 
-- Conan: Target declared 'Freetype::Freetype'
-- Conan: Including build module from '/home/.conan2/p/freetfd67f48bbd6eb/p/lib/cmake/conan-official-freetype-variables.cmake'
-- Found Freetype 26.1.20 
-- Found OpenColorIO 2.5.0 
-- Forcing optional of disabled OpenCV
-- Not using OpenCV -- disabled  
-- Forcing optional of disabled TBB
-- Not using TBB -- disabled  
-- Forcing optional of disabled DCMTK
-- Not using DCMTK -- disabled  
-- FFmpeg library not found 
--     Try setting FFmpeg_ROOT ?
-- Found GIF 5.2.1 
-- Conan: Target declared 'libheif::heif'
-- Found Libheif 1.20.1 
-- Forcing optional of disabled LibRaw
-- Not using LibRaw -- disabled  
-- Found OpenJPEG 2.5.4 
-- Found openjph 0.24.2 
-- Forcing optional of disabled OpenVDB
-- Not using OpenVDB -- disabled  
-- Forcing optional of disabled Ptex
-- Not using Ptex -- disabled  
-- Forcing optional of disabled Ptex
-- Not using Ptex -- disabled  
-- Found WebP 1.5.0 
-- Forcing optional of disabled R3DSDK
-- Not using R3DSDK -- disabled  
-- Forcing optional of disabled Nuke
-- Not using Nuke -- disabled  
-- Found BZip2 1.0.8 
-- Found Robinmap 1.4.0 
-- Found fmt 12.0.0 
-- All build dependencies: BZip2 1.0.8;FFmpeg NONE;fmt 12.0.0;Freetype 26.1.20;GIF 5.2.1;Imath 3.2.1;JXL 0.11.1;Libheif 1.20.1;libjpeg-turbo 3.1.2;libuhdr 1.4.0;OpenColorIO 2.5.0;OpenEXR 3.4.1;OpenJPEG 2.5.4;openjph 0.24.2;PNG 1.6.50;pugixml 1.14;Robinmap 1.4.0;TIFF 4.7.1;WebP 1.5.0;ZLIB 1.3.1
CMake Warning at src/dicom.imageio/CMakeLists.txt:10 (message):
  DICOM plugin will not be built, no DCMTK
-- FFmpeg not found: ffmpeg plugin will not be built
-- OpenEXR core library will not be used by default
CMake Warning at src/raw.imageio/CMakeLists.txt:12 (message):
  Raw plugin will not be built
-- OpenEXR core library will not be used by default
-- 
   WARNING: Qt or OpenGL not found -- 'iv' will not be built!
-- Not building Python bindings: USE_PYTHON=OFF, Python3_Development.Module_FOUND=
-- 
-- =========================================================================
-- = Dependency report                                                     =
-- =========================================================================
-- 
-- The following dependencies found externally:
--     BZip2 1.0.8
--     fmt 12.0.0
--     Freetype 26.1.20
--     GIF 5.2.1
--     Imath 3.2.1
--     JXL 0.11.1
--     Libheif 1.20.1
--     libjpeg-turbo 3.1.2
--     libuhdr 1.4.0
--     OpenColorIO 2.5.0
--     OpenEXR 3.4.1
--     OpenJPEG 2.5.4
--     openjph 0.24.2
--     PNG 1.6.50
--     pugixml 1.14
--     Robinmap 1.4.0
--     TIFF 4.7.1
--     WebP 1.5.0
--     ZLIB 1.3.1
-- The following dependencies were not found:
--     FFmpeg  
-- 
-- =========================================================================
-- 
-- Configuring done (0.7s)
-- Generating done (0.1s)
CMake Warning:
  Manually-specified variables were not used by the project:
    BUILD_MISSING_ROBINMAP
    CMAKE_DISABLE_FIND_PACKAGE_Nuke
    CMAKE_DISABLE_FIND_PACKAGE_R3DSDK
    CMAKE_REQUIRE_FIND_PACKAGE_DCMTK
    CMAKE_REQUIRE_FIND_PACKAGE_LibRaw
    CMAKE_REQUIRE_FIND_PACKAGE_OpenCV
    CMAKE_REQUIRE_FIND_PACKAGE_Ptex
    CMAKE_REQUIRE_FIND_PACKAGE_TBB
    INTERNALIZE_FMT

CMake Warning:
  Manually-specified variables were not used by the project:
    BUILD_MISSING_ROBINMAP
...

So does it mean anything that the variables are listed as not used? But btw. I might have just understood how to fix things.

[irieger]

When writting the other comment, I thought a fix might be something like this added for each dependency to prevent it to find externally installed libraries:

        if not self.options.get_safe("with_openjph", False):
            tc.cache_variables["CMAKE_DISABLE_FIND_PACKAGE_openjph"] = True

However that doesn't work either as it also can influence linking for dependencies. With my example of openexr/3.4.1 used (with openjph) but compiling with_openjph=False, the build fails early as OpenEXR misses its dependency:

Click to expand log

-------- Installing package openimageio/3.1.6.2 (37 of 37) --------
openimageio/3.1.6.2: Building from source
openimageio/3.1.6.2: Package openimageio/3.1.6.2:fa1a452bf979af1a07bd323408b80b86c0a72104
openimageio/3.1.6.2: settings: os=Macos arch=armv8 compiler=apple-clang compiler.cppstd=gnu20 compiler.libcxx=libc++ compiler.version=15 build_type=Release
openimageio/3.1.6.2: options: fPIC=True shared=False with_dicom=False with_ffmpeg=False with_freetype=True with_giflib=True with_hdf5=True with_libheif=True with_libjpeg=libjpeg with_libjxl=True with_libpng=True with_libultrahdr=True with_libwebp=True with_opencolorio=True with_opencv=False with_openjpeg=True with_openjph=False with_openvdb=False with_ptex=True with_raw=False with_tbb=False
openimageio/3.1.6.2: requires: libjxl/0.11.Z highway/1.1.Z pugixml/1.14.Z libsquish/1.15.Z tsl-robin-map/1.2.1#760934a48af36aaa43a1366f1dc34bd3:da39a3ee5e6b4b0d3255bfef95601890afd80709 fmt/10.2.Z freetype/2.13.Z libpng/1.6.Z brotli/1.1.Z hdf5/1.14.Z opencolorio/2.5.Z expat/2.7.Z openexr/3.4.Z libdeflate/1.23.Z openjph/0.24.Z libtiff/4.6.Z imath/3.2.Z pystring/1.1.Z yaml-cpp/0.8.Z minizip-ng/4.0.Z bzip2/1.0.Z xz_utils/5.4.Z zstd/1.5.Z openssl/3.6.Z libiconv/1.17.Z lcms/2.17.Z giflib/5.2.Z libheif/1.20.Z libde265/1.0.Z openjpeg/2.5.Z ptex/2.4.Z zlib/1.3.Z libwebp/1.5.Z libultrahdr/1.4.Z libjpeg/9f
openimageio/3.1.6.2: Copying sources to build folder
openimageio/3.1.6.2: Building your package in /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b
openimageio/3.1.6.2: Calling generate()
openimageio/3.1.6.2: Generators folder: /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release/generators
openimageio/3.1.6.2: CMakeToolchain generated: conan_toolchain.cmake
openimageio/3.1.6.2: CMakeToolchain generated: /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release/generators/CMakePresets.json
openimageio/3.1.6.2: CMakeToolchain generated: /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/src/CMakeUserPresets.json
openimageio/3.1.6.2: CMakeDeps necessary find_package() and targets for your CMakeLists.txt
    find_package(JXL)
    find_package(pugixml)
    find_package(libsquish)
    find_package(Robinmap)
    find_package(fmt)
    find_package(freetype)
    find_package(PNG)
    find_package(HDF5)
    find_package(OpenColorIO)
    find_package(OpenEXR)
    find_package(TIFF)
    find_package(Imath)
    find_package(GIF)
    find_package(libheif)
    find_package(OpenJPEG)
    find_package(ptex)
    find_package(ZLIB)
    find_package(WebP)
    find_package(libuhdr)
    find_package(JPEG)
    target_link_libraries(... libjxl::libjxl pugixml::pugixml libsquish::libsquish tsl::robin_map fmt::fmt Freetype::Freetype PNG::PNG HDF5::HDF5 OpenColorIO::OpenColorIO OpenEXR::OpenEXR TIFF::TIFF Imath::Imath GIF::GIF libheif::heif openjp2 Ptex::Ptex_static ZLIB::ZLIB libwebp::libwebp libuhdr::libuhdr JPEG::JPEG)
openimageio/3.1.6.2: Generating aggregated env files
openimageio/3.1.6.2: Generated aggregated env files: ['conanbuild.sh', 'conanrun.sh']
openimageio/3.1.6.2: Calling build()
openimageio/3.1.6.2: Running CMake.configure()
openimageio/3.1.6.2: RUN: cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="generators/conan_toolchain.cmake" -DCMAKE_INSTALL_PREFIX="/Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/p" -DUSE_JXL="ON" -DBUILD_MISSING_ROBINMAP="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_Robinmap="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_pugixml="ON" -DINTERNALIZE_FMT="OFF" -DROBINMAP_INCLUDES="/Users/ingmar/.conan2/p/tsl-ra6e09c6f03a15/p/include" -DIMATH_INCLUDES="/Users/ingmar/.conan2/p/b/imath5cd49ea8b16f8/p/include" -DOPENEXR_INCLUDES="/Users/ingmar/.conan2/p/b/opene1d275da41e618/p/include" -DCMAKE_REQUIRE_FIND_PACKAGE_PNG="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_Freetype="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_OpenColorIO="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_OpenCV="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_TBB="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_DCMTK="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_GIF="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_Libheif="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_LibRaw="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_OpenJPEG="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_openjph="OFF" -DCMAKE_REQUIRE_FIND_PACKAGE_Ptex="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_WebP="ON" -DCMAKE_REQUIRE_FIND_PACKAGE_JXL="ON" -DCMAKE_DISABLE_FIND_PACKAGE_libjpeg-turbo="ON" -DCMAKE_DISABLE_FIND_PACKAGE_R3DSDK="ON" -DCMAKE_DISABLE_FIND_PACKAGE_Nuke="ON" -DCMAKE_DISABLE_FIND_PACKAGE_openjph="ON" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "/Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/src"
-- Using Conan toolchain: /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release/generators/conan_toolchain.cmake
-- Conan toolchain: Setting CMAKE_POSITION_INDEPENDENT_CODE=ON (options.fPIC)
-- Conan toolchain: Defining libcxx as C++ flags: -stdlib=libc++
-- Conan toolchain: C++ Standard 20 with extensions ON
-- Conan toolchain: Setting BUILD_SHARED_LIBS = OFF
-- The CXX compiler identification is AppleClang 17.0.0.17000013
-- The C compiler identification is AppleClang 17.0.0.17000013
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Configuring OpenImageIO 3.1.6.2
-- CMake 4.1.2
-- CMake system           = Darwin-24.6.0
-- CMake system name      = Darwin
-- Project source dir     = /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/src
-- Project build dir      = /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release
-- Project install prefix = /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/p
-- Configuration types    = 
-- Build type             = Release
-- Supported release      = ON
-- CMAKE_UNITY_BUILD_MODE = 
-- CMAKE_UNITY_BUILD_BATCH_SIZE = 
-- Outer namespace PROJ_OUTER_NAMESPACE:   OpenImageIO
-- Inner namespace PROJ_VERSION_NAMESPACE: v3_1
-- Joint namespace PROJ_NAMESPACE_V:       OpenImageIO_v3_1
-- CMAKE_CXX_COMPILER     = /usr/bin/c++
-- CMAKE_CXX_COMPILER_ID  = AppleClang
-- Building with C++20, downstream minimum C++17
-- Compiling with SIMD level 
-- clang-format found: /opt/homebrew/bin/clang-format
-- 
-- * Checking for dependencies...
-- *   - Missing a dependency 'Package'?
-- *     Try cmake -DPackage_ROOT=path or set environment var Package_ROOT=path
-- *     For many dependencies, we supply src/build-scripts/build_Package.bash
-- *   - To exclude an optional dependency (even if found),
-- *     -DUSE_Package=OFF or set environment var USE_Package=OFF 
-- 
-- Found ZLIB 1.3.1 
-- Found Imath 3.2.1 
CMake Error at /Users/ingmar/.conan2/p/cmake8793f952877ee/p/CMake.app/Contents/share/cmake-4.1/Modules/CMakeFindDependencyMacro.cmake:78 (find_package):
  find_package for module openjph called with REQUIRED, but
  CMAKE_DISABLE_FIND_PACKAGE_openjph is enabled.  A REQUIRED package cannot
  be disabled.
Call Stack (most recent call first):
  /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release/generators/OpenEXRConfig.cmake:24 (find_dependency)
  src/cmake/dependency_utils.cmake:391 (find_package)
  src/cmake/externalpackages.cmake:58 (checked_find_package)
  CMakeLists.txt:227 (include)


CMake Error at /Users/ingmar/.conan2/p/cmake8793f952877ee/p/CMake.app/Contents/share/cmake-4.1/Modules/CMakeFindDependencyMacro.cmake:78 (find_package):
  find_package for module openjph called with REQUIRED, but
  CMAKE_DISABLE_FIND_PACKAGE_openjph is enabled.  A REQUIRED package cannot
  be disabled.
Call Stack (most recent call first):
  /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release/generators/OpenEXRConfig.cmake:24 (find_dependency)
  src/cmake/modules/FindOpenEXR.cmake:28 (find_package)
  src/cmake/dependency_utils.cmake:391 (find_package)
  src/cmake/externalpackages.cmake:58 (checked_find_package)
  CMakeLists.txt:227 (include)


CMake Warning at src/cmake/modules/FindOpenEXR.cmake:28 (find_package):
  Found package configuration file:

    /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release/generators/OpenEXRConfig.cmake

  but it set OpenEXR_FOUND to FALSE so package "OpenEXR" is considered to be
  NOT FOUND.  Reason given by package:

  OpenEXR could not be found because dependency openjph could not be found.

Call Stack (most recent call first):
  src/cmake/dependency_utils.cmake:391 (find_package)
  src/cmake/externalpackages.cmake:58 (checked_find_package)
  CMakeLists.txt:227 (include)


-- Found OpenEXR 3.4.1 
-- libjpeg-turbo library not found 
--     Try setting libjpeg-turbo_ROOT ?
--     Maybe this will help:  src/build-scripts/build_libjpeg-turbo.bash
-- Found JPEG 9f 
-- Found libuhdr 1.4.0 
-- Found TIFF 4.6.0 
-- Found JXL 0.11.1 
-- Found pugixml 1.14 
-- Found PNG 1.6.50 
-- Conan: Target declared 'Freetype::Freetype'
-- Conan: Including build module from '/Users/ingmar/.conan2/p/b/freet803a8449d2fc4/p/lib/cmake/conan-official-freetype-variables.cmake'
-- Found Freetype 26.1.20 
CMake Error at /Users/ingmar/.conan2/p/cmake8793f952877ee/p/CMake.app/Contents/share/cmake-4.1/Modules/CMakeFindDependencyMacro.cmake:78 (find_package):
  find_package for module openjph called with REQUIRED, but
  CMAKE_DISABLE_FIND_PACKAGE_openjph is enabled.  A REQUIRED package cannot
  be disabled.
Call Stack (most recent call first):
  /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release/generators/OpenEXRConfig.cmake:24 (find_dependency)
  /Users/ingmar/.conan2/p/cmake8793f952877ee/p/CMake.app/Contents/share/cmake-4.1/Modules/CMakeFindDependencyMacro.cmake:78 (find_package)
  /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release/generators/OpenColorIOConfig.cmake:24 (find_dependency)
  src/cmake/dependency_utils.cmake:391 (find_package)
  src/cmake/externalpackages.cmake:139 (checked_find_package)
  CMakeLists.txt:227 (include)


CMake Error at /Users/ingmar/.conan2/p/cmake8793f952877ee/p/CMake.app/Contents/share/cmake-4.1/Modules/CMakeFindDependencyMacro.cmake:78 (find_package):
  Found package configuration file:

    /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release/generators/OpenEXRConfig.cmake

  but it set OpenEXR_FOUND to FALSE so package "OpenEXR" is considered to be
  NOT FOUND.  Reason given by package:

  OpenEXR could not be found because dependency openjph could not be found.

Call Stack (most recent call first):
  /Users/ingmar/.conan2/p/b/openi40afd59a2d3f6/b/build/Release/generators/OpenColorIOConfig.cmake:24 (find_dependency)
  src/cmake/dependency_utils.cmake:391 (find_package)
  src/cmake/externalpackages.cmake:139 (checked_find_package)
  CMakeLists.txt:227 (include)


-- Configuring incomplete, errors occurred!

[jcar87]

/home/.conan2/p/b/openia9740709237a7/b/src/src/jpeg2000.imageio/jpeg2000output.cpp:27:14: fatal error: openjph/ojph_arg.h: No such file or directory
   27 | #    include <openjph/ojph_arg.h>
      |              ^~~~~~~~~~~~~~~~~~~~

Should be fixed by https://github.com/conan-io/conan-center-index/pull/28626/files#r2460252413
Although it can cause the issue if openimageio has it disabled and openexr has it enabled

I'd propose something like this:

def configure(self):
     if not self.options.with_openjph and "openjph" in self.dependencies:
         raise ConanInvalidConfiguration("with_openjph is disabled but it is present as a transitive dependency. Set with_openjph=True or disable the transitive dependency")

Also when debugging I saw that even with -o:a '&:with_ffmpeg=False' ffmpeg was found (which is installed on my MacBook via brew to be used as a command line tool

 tc.cache_variables["CMAKE_DISABLE_FIND_PACKAGE_FFmpeg"]  = True

Any dependency in openimageio that is not guarded by a USE_xxx variable in the upstream scripts (like they have for Qt and OpenJXL) will need to have this:

 tc.cache_variables["CMAKE_DISABLE_FIND_PACKAGE_xxx"] 

• Set to True if the dependency is not handled by the recipe (e.g. like nuke)
• Set to not self.options.get_safe("with_xxx", False) if the recipe is handled by the recipe

That would probably prevent or at least indicate what to do - I don't see much of a point in having openjph as a transitive dependency (e.g via openexr) and NOT using in openimageio, its already in the program, may as well use it.

We will consider patches that are not too cumbersome to maintain and dont make it difficult to add new versions move it forward. But I would very strongly recommend, rather than have 1000 line patches in Conan Center to maintain, to please reach out to the openimageio maintainers and kindly request them to add more USE_xxx checks to have a better way to control dependencies rather than "use it it found". It's a pattern that may be suited for developers of the library, or for users that build directly from source, but it's terrible for package/repository maintainers.

https://www.youtube.com/watch?v=sBP17HQAQjk

[irieger]

Thanks for the feedback. I guess I'll prep a PR with the disabling. I will also bring it up upstream, but for now I think the package should be clean still.

"every use of find_package() without REQUIRED is suspect" -> I can relate so much. In my projects I don't think I have any single non-required. I don't think I saw it in a tutorial or so explicitly, but it was always obvious for me that I want options and if they are set, it should fail if the dependencies aren't available.

Should be fixed by https://github.com/conan-io/conan-center-index/pull/28626/files#r2460252413 Although it can cause the issue if openimageio has it disabled and openexr has it enabled

I'd propose something like this:

def configure(self):
     if not self.options.with_openjph and "openjph" in self.dependencies:
         raise ConanInvalidConfiguration("with_openjph is disabled but it is present as a transitive dependency. Set with_openjph=True or disable the transitive dependency")

Sure, as I wrote this part was fixed in my local build branch already where I merged my other MR in.

However I'd still debate - and that is what I'm going to propose in the separate MR - to allow with_openjph to be independent from which openexr version is used. I don't disagree that I don't see much reason for anyway having openjph in the env and not use it, I think the invalid config is more intrusive than just honor the user selection.

Reasoning:

• OpenEXR uses the compression algo offered via OpenJPH as one way to compress image data inside an exr file. And it is - for all that I found in OpenEXR CMakeLists.txt - non-optional beginning with 3.4.0. This version officially introduces that compression so any user of OpenEXR 3.4 or newer is assumed to be able to handle such files.
• OpenImageIO: Uses it to offer a subset of JPEG 2000 via this library. (JPH is a part of the JPEG 2000 standard package introduced some point later to offer a faster compression that is a subset or based on JPEG 2000 but trading a bit of image quality against algorithmic complexity (runtime performance).) And OpenImageIO handles OpenJPH fully optional and as it is a separate format, I'd rather not add additional validation. But lets debate this in the PR that I'm preparing.