Compiling macOS environment on Ubuntu 22.04

[BlockGardener]

I have an issue compiling the macOS environment for Litecoin 0.21.2.2 on Ubuntu 22.04.

I installed the following dependencies:

sudo apt-get install make automake cmake curl g++-multilib libtool binutils-gold bsdmainutils pkg-config python3 patch
sudo apt-get install curl librsvg2-bin libtiff-tools bsdmainutils cmake imagemagick libcap-dev libz-dev libbz2-dev python3-setuptools libtinfo5

The following commands where executed to compile the macOS environment after I created the file Xcode-11.3.1-11C505-extracted-SDK-with-libcxx-headers.tar.gz with Xcode 3.1.1:

./contrib/macdeploy/gen-sdk $HOME'/Xcode.app'
mkdir -p depends/sdk-sources
mkdir -p depends/SDKs
cp Xcode-11.3.1-11C505-extracted-SDK-with-libcxx-headers.tar.gz depends/sdk-sources
tar -C depends/SDKs -xf depends/sdk-sources/Xcode-11.3.1-11C505-extracted-SDK-with-libcxx-headers.tar.gz

cd depends
make HOST=x86_64-apple-darwin18

The compiling results in the following errors:

[ 21%] Building CXX object test/CMakeFiles/assert-test.dir/assert-test.cc.o
[ 23%] Linking CXX executable ../bin/assert-test
clang: warning: argument unused during compilation: '-nostdinc++' [-Wunused-command-line-argument]
ld: building for macOS-x86_64 but attempting to link with file built for unknown-unsupported file format ( 0x21 0x3C 0x61 0x72 0x63 0x68 0x3E 0x0A 0x2F 0x2F 0x20 0x20 0x20 0x20 0x20 0x20 )
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [test/CMakeFiles/assert-test.dir/build.make:100: bin/assert-test] Error 1
make[2]: *** [CMakeFiles/Makefile2:233: test/CMakeFiles/assert-test.dir/all] Error 2

[losh11]

When compiling for a different target OS, I would strongly reccomend doing a gitian-build with docker. Dependencies and build tools can be extremely hard to get right.

[DaCryptoRaccoon]

It appears that you are encountering linker errors.

The specific error message you are seeing:

ld: building for macOS-x86_64 but attempting to link with file built for unknown-unsupported file format ( 0x21 0x3C 0x61 0x72 0x63 0x68 0x3E 0x0A 0x2F 0x2F 0x20 0x20 0x20 0x20 0x20 0x20 )

clang: error: linker command failed with exit code 1 (use -v to see invocation)

This error indicates that the linker is attempting to link with a file that is not compatible with the macOS-x86_64 target architecture.

To troubleshoot and resolve this issue, consider the following steps:

Check Dependencies and Configuration:
Ensure that all required dependencies are properly installed and configured. Double-check that you have followed the installation instructions accurately, including downloading and extracting the correct SDK.

SDK Compatibility:
Verify that the Xcode SDK you have extracted is compatible with the macOS-x86_64 target architecture. It's possible that the extracted SDK is not suitable for linking with the Litecoin source code.

Check Makefile and Compiler Flags:
Review the Makefile and any compiler/linker flags that are being used. Make sure that the correct flags and settings are being passed to the compiler and linker for the macOS-x86_64 target.