Merge pull request #402 from corvus-ch/mac_build

Document how to build on MacOS

readme.md

@@ -50,7 +50,50 @@ There are currently no existing packages for other distributions, for these syst
 
 ## MacOS
 
-TODO
+You might get lucky by using the installer downloadable from [the Releases page](https://github.com/AlexandreRouma/SDRPlusPlus/releases).
+
+### Building it yourself
+
+This guide requires you to have Homebrew installed. Check out https://brew.sh/ on how to do so.
+
+Get yourself a copy of the source code. This can be done by downloading the
+source package from [the Releases
+page](https://github.com/AlexandreRouma/SDRPlusPlus/releases). Eextract it to a
+location of your choice. Alternativley you can clone
+https://github.com/AlexandreRouma/SDRPlusPlus.git using git.
+
+```sh
+brew install \
+  airspy \
+  airspyhf \
+  cmake \
+  codec2 \
+  fftw \
+  glew \
+  glfw \
+  hackrf \
+  libbladerf \
+  librtlsdr \
+  portaudio \
+  rtl-sdr \
+  soapyrtlsdr \
+  volk
+mkdir build
+cd build
+cmake .. \
+  -DOPT_BUILD_AUDIO_SINK=OFF \
+  -DOPT_BUILD_BLADERF_SOURCE=OFF \
+  -DOPT_BUILD_M17_DECODER=ON \
+  -DOPT_BUILD_NEW_PORTAUDIO_SINK=ON \
+  -DOPT_BUILD_PLUTOSDR_SOURCE=OFF \
+  -DOPT_BUILD_PORTAUDIO_SINK=ON \
+  -DOPT_BUILD_SOAPY_SOURCE=OFF
+make -j$(sysctl -n hw.ncpu)
+```
+
+The above was tested on macOS Big Sur (11.5).
+
+Check `jobs.build_macos` in the [build_all.yaml](https://github.com/AlexandreRouma/SDRPlusPlus/blob/master/.github/workflows/build_all.yml) workflow for the exact options used for building the package available in the [releases](https://github.com/AlexandreRouma/SDRPlusPlus/releases/tag/1.0.3)
 
 ## BSD