When Anaconda is installed on a Mac, it sets environment variable LD=/anaconda3/bin/x86_64-apple-darwin13.4.0-ld.
When running an Xcode build from command line (like building a Carthage dependency), the value of LD gets inserted into the linker command:
Ld /Users/maxim/Library/Caches/org.carthage.CarthageKit/DerivedData/10.1_10B61/GeoJSONMap/0.0.8/Build/Intermediates.noindex/ArchiveIntermediates/GeoJSONMap/IntermediateBuildFilesPath/UninstalledProducts/iphoneos/GeoJSONMap.framework/GeoJSONMap normal arm64 (in target: GeoJSONMap)
cd /Users/maxim/Carthage/Checkouts/GeoJSONMap
export IPHONEOS_DEPLOYMENT_TARGET=11.0
/anaconda3/bin/x86_64-apple-darwin13.4.0-ld -arch arm64 -dynamiclib <... skipped for brevity ...>
...which results in ld: unknown option: -dynamiclib.
So, the question is: how to avoid this interference in a proper way? Is it possible to get the variable LD out of Xcode build process? Is it possible to configure Anaconda to use some other variable instead? Is there a way to unset Anaconda setting temporarily when running Xcode builds? What is the intended value of LD that Xcode expects?
With conda versions greater than or equal to 4.5 (I think), it should be sufficient to run
conda deactivate
to remove conda-specific environment variable settings from your shell. You may need to run conda deactivate several times if you have environments other than the base one activated.