"No CMAKE_C_COMPILER could be found" when building from source

[javawizard]

Is there an existing issue for this problem?

• I have searched the existing issues

OrcaSlicer Version

main

Operating System (OS)

macOS

OS Version

MacOS Sonoma 14.2.1

Additional system information

No response

Printer

N/A

How to reproduce

1. brew install cmake gettext libtool automake autoconf texinfo
2. Install XCode
3. sudo xcode-select --reset for good measure
4. Clone [email protected]:SoftFever/OrcaSlicer
5. cd OrcaSlicer && ./build_release_macos.sh

Actual results

The build dies after a few moments with:

[...]

Building slicer...
+ mkdir -p /Users/jw/projects/OrcaSlicer/build_arm64
+ cd /Users/jw/projects/OrcaSlicer/build_arm64
+ '[' 1. '!=' . ']'
+ cmake .. -G Xcode -DBBL_RELEASE_TO_PUBLIC=1 -DCMAKE_PREFIX_PATH=/Users/jw/projects/OrcaSlicer/deps/build_arm64/OrcaSlicer_dep_arm64/usr/local -DCMAKE_INSTALL_PREFIX=/Users/jw/projects/OrcaSlicer/build_arm64/OrcaSlicer -DCMAKE_BUILD_TYPE=Release -DCMAKE_MACOSX_RPATH=ON -DCMAKE_INSTALL_RPATH=/Users/jw/projects/OrcaSlicer/deps/build_arm64/OrcaSlicer_dep_arm64/usr/local -DCMAKE_MACOSX_BUNDLE=ON -DCMAKE_OSX_ARCHITECTURES=arm64 -DCMAKE_OSX_DEPLOYMENT_TARGET=11.3
-- CMAKE_OSX_DEPLOYMENT_TARGET: 11.3
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:11 (project):
  No CMAKE_C_COMPILER could be found.



CMake Error at CMakeLists.txt:11 (project):
  No CMAKE_CXX_COMPILER could be found.



-- Configuring incomplete, errors occurred!

Expected results

OrcaSlicer should compile successfully.

Project file & Debug log uploads

N/A

Checklist of files to include

• Log file
• Project file

Anything else?

Note that Bambu Studio itself builds fine on my machine following the directions here; it's just Orca that's running into this issue.

[github-actions]

Orca bot: this issue is stale because it has been open for 90 days with no activity.

[github-actions]

Orca bot: This issue was closed because it has been inactive for 7 days since being marked as stale.

[yapalexei]

This is still an issue, if it's been addressed. to reproduce I went through the same order of steps, as mentioned above.
System:
MacOS 14.4.1

If I get lucky I'll post the solution here for posterity.

[yapalexei]

I was able to get passed the above issue by doing the following:

• delete build_arm64 directory, to start from scratch
• install Xcode, open and (critically) agree to terms. This should install things like clang, gcc, g++ toolchain deps.
• (maybe optional, not sure but) open build_release_macos.sh and add the following lines to the function build_slicer for the cmake command just after line 159 that says -G "${SLICER_CMAKE_GENERATOR}" \

-DCMAKE_CXX_COMPILER=/usr/bin/g++ \
-DCMAKE_C_COMPILER=/usr/bin/gcc \

It took about 10 mins to build successfully.

I suppose that Xcode is the critical piece here but, I'll admit, I don't want to burn 10 more minutes to find out that the above 2-line update in build_release_macos.sh does anything significant. I'll let the experts correct me if they so choose.

With that said, I hope this helps.