Can't build on MacOS 13

[elalish]

Godot version

N/A

System information

M1 Macbook Pro, macOS 13.5

Issue description

I'm hoping to contribute to this project, so I'm starting by trying to get a local build working. Conan is not finding iconv even though it's provided by OSX. In searching, I see lots of people having vaguely related problems, but I have no idea how to even debug why Conan can't seem to find iconv, much less fix it.

I figured I'd ask in case someone has tried and knows the magic incantation.

Steps to reproduce

I followed the Github actions, so after cloning the repo and fetching the FBX SDK, I tried running:

pip install --upgrade conan==1.58
conan profile new default --detect
conan profile show default
env CMAKE_OSX_ARCHITECTURES=x86_64 conan install . -i build -s build_type=Release --settings arch=x86_64 --build missing

But at this point, I get an error about failing to find iconv:

Performing configuration checks

    - default address-model    : 64-bit [1]
    - default architecture     : x86 [1]
    - compiler supports SSE2   : yes [2]
    - compiler supports SSE4.1 : yes [2]
    - has std::atomic_ref      : no [2]
    - has statx                : no [2]
    - has statx syscall        : no [2]
    - has init_priority attribute : yes [2]
    - has stat::st_blksize     : no [2]
    - has stat::st_mtim        : no [2]
    - has stat::st_mtimensec   : no [2]
    - has stat::st_mtimespec   : yes [2]
    - has stat::st_birthtim    : no [2]
    - has stat::st_birthtimensec : no [2]
    - has stat::st_birthtimespec : yes [2]
    - zlib                     : yes [3]
    - bzip2                    : yes [3]
    - iconv (libc)             : no [2]
    - iconv (separate)         : no [2]
- Boost.Locale failed to find iconv (separate) library to be built.
boost/1.78.0: 
boost/1.78.0: ERROR: Package 'c9b9cbf463efdfe91cd1b39fbd90e49b9d3ac02b' build failed
boost/1.78.0: WARN: Build folder /Users/elalish/.conan/data/boost/1.78.0/_/_/build/c9b9cbf463efdfe91cd1b39fbd90e49b9d3ac02b/build-release
ERROR: boost/1.78.0: Error in build() method, line 887
    self.run(full_command)
    ConanException: Error 1 while executing b2 -q target-os=darwin architecture=x86 address-model=64 binary-format=mach-o abi=sysv --layout=system --user-config=/Users/elalish/.conan/data/boost/1.78.0/_/_/source/src/tools/build/user-config.jam -sNO_ZLIB=0 -sNO_BZIP2=0 -sNO_LZMA=1 -sNO_ZSTD=1 boost.locale.icu=off --disable-icu boost.locale.iconv=on boost.locale.iconv.lib=libiconv threading=multi visibility=hidden link=static variant=release --with-atomic --with-chrono --with-container --with-context --with-contract --with-coroutine --with-date_time --with-exception --with-filesystem --with-iostreams --with-locale --with-log --with-program_options --with-random --with-regex --with-serialization --with-stacktrace --with-system --with-test --with-thread --with-timer --with-type_erasure --with-wave toolset=clang-darwin pch=on -sLIBBACKTRACE_PATH=/Users/elalish/.conan/data/libbacktrace/cci.20210118/_/_/package/6841fe8f0f22f6fa260da36a43a94ab525c7ed8d -sICONV_PATH=/Users/elalish/.conan/data/libiconv/1.15/_/_/package/6841fe8f0f22f6fa260da36a43a94ab525c7ed8d linkflags="-stdlib=libc++" cxxflags="-fPIC -stdlib=libc++ -DBOOST_STACKTRACE_ADDR2LINE_LOCATION=/usr/bin/addr2line" install --prefix=/Users/elalish/.conan/data/boost/1.78.0/_/_/package/c9b9cbf463efdfe91cd1b39fbd90e49b9d3ac02b -j10 --abbreviate-paths -d0 --debug-configuration --build-dir="/Users/elalish/.conan/data/boost/1.78.0/_/_/build/c9b9cbf463efdfe91cd1b39fbd90e49b9d3ac02b/build-release"

Minimal reproduction project

N/A

[fire]

I have no idea.

Is brew's iconv is visible in path.

[fire]

 ~ % which iconv
/usr/bin/iconv

[elalish]

I don't have brew's iconv installed (though I tried it too, to no avail). I have the same which output as you, but that's not the library. Does it build for you on a Macbook, or have you tried?

[fire]

I've had a lot trouble. I was only able to build on the exact cicd setup.

[fire]

I suspect it's arm64 vs intel 64bit problem.

[fire]

@elalish Did you have any success?

I am also investigating https://github.com/ufbx/ufbx which is 100% opensource.

[elalish]

I did not, but ufbx looks interesting. I was considering trying to update the three.js FBXLoader to avoid all this building business, but I'm not sure how that'll go.

[fire]

@elalish https://github.com/godotengine/godot/pull/81746 More integration work.

[fire]

@elalish The important parts of ufbx is feature complete. We're ignoring lights and cameras, but blend shape, skinned meshes and 3d transforms work and with animation too.

[elalish]

Awesome, thanks for letting me know!

[fire]

We merged https://github.com/godotengine/godot/pull/81746 and that means we have a native FBX importer in Godot Engine.

[fire]

May have restored building on the mac. https://github.com/godotengine/FBX2glTF/pull/52

Testing using https://github.com/godotengine/FBX2glTF/pull/57