Build Instructions for OS X

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General build instructions

• Run xcode-select --install to install the macOS Command Line Tools
• Install homebrew (from http://mxcl.github.com/homebrew/)
• Make sure brew doctor doesn't show any errors
• brew install git libpng jpeg libtiff qt@5
• brew link --force qt@5
• Clone MVE repository
• git clone git://github.com/simonfuhrmann/mve.git
• Build MVE and UMVE
• cd mve; make
• cd apps/umve; qmake; make; ./umve

Toubleshooting

• libgomp not found?
• Remove the OPENMP=-fopenmp line from Makefile.inc
• Alternative: Temporary export OPENMP="" in your shell
• Problems with qmake?
• Add /usr/local/bin and/or /usr/local/opt/qt/bin to /etc/paths
• Maybe add /usr/local/opt/qt/lib to your LIBRARY_PATH

For Apple m1 chip users

• In homebrew of new version, packages are installed in /opt/homebrew/... instead of /usr/local/..., which is the default path.
• Execute export CPATH=/opt/homebrew/include and export LIBRARY_PATH=/opt/homebrew/lib to set environmental variable.
• -march=native not found? Edit Makefile.inc and change it. Starting with clang 13, -mcpu=apple-m1 is available. Starting with clang 15, -march=native is available for M1.
• undeclared identifier '__builtin_ia32_emms'... for using mmintrin.h, a header for x86 intrinsics. Comment line 42, 43 in libs/sfm/nearest_neighbor.cc.