Update BUILD-INSTRUCTIONS-MACOS.md

[knewg]

Build instructions are not working for (at least) the new Silicon mac's. I don't have access to an older intel mac to see if the instructions are still working there, but since I couldn't find any open issues regarding this I assume it's only affecting silicon macs.

[fpytloun]

Intel Mac (Monterey) also needs Homebrew's gcc-11 to build successfuly:

brew install gcc
brew install cmake
brew install qt5

cmake -D CMAKE_PREFIX_PATH="/usr/local/opt/qt5" -DCMAKE_C_COMPILER=/usr/local/Cellar/gcc/11.2.0_3/bin/gcc-11 -DCMAKE_CXX_COMPILER=/usr/local/Cellar/gcc/11.2.0_3/bin/g++-11  ..

[pedro-carrasco]

I had to use gcc-12 in the cmake command for Apple Silicon:
cmake -D CMAKE_PREFIX_PATH="/opt/homebrew/opt/qt5" -DCMAKE_C_COMPILER=/opt/homebrew/bin/gcc-12 -DCMAKE_CXX_COMPILER=/opt/homebrew/bin/g++-12 ..

And it works fine.

[justinwzig]

Confirming that this works with QT 5 and GCC 14 on macos Sonoma 14.4.1

brew install cmake
brew install qt@5
brew install gcc@14

cd glabels_source_directory
mkdir build
cd build
cmake -D CMAKE_PREFIX_PATH="/usr/local/opt/qt5" -DCMAKE_C_COMPILER=/opt/homebrew/Cellar/gcc/14.1.0/bin/gcc-14 -DCMAKE_CXX_COMPILER=/opt/homebrew/Cellar/gcc/14.1.0/bin/g++-14  ..
make
sudo make install

Going to PR.

[tpoomlmly]

@justinwzig interesting how your solution has /usr/local and /opt/homebrew. Have you got 2 copies of homebrew/terminal with different architectures?

To make it work for me I had to replace "/usr/local/opt/qt5" with "/opt/homebrew/opt/qt5"

[tpoomlmly]

I wish there was a way to avoid specifying the GCC version on Apple Silicon, but leaving it out makes it fall back on Xcode's tools which fail to compile the project.