[Bioc-devel] -fopenmp switch issue on mac

Vincent Carey @tvjc @end|ng |rom ch@nn|ng@h@rv@rd@edu
Wed Dec 4 17:03:26 CET 2019

When installing packages from source,

I frequently run into this error with

%vjcair> clang --version

Apple LLVM version 9.0.0 (clang-900.0.39.2)

Target: x86_64-apple-darwin16.7.0

Thread model: posix


I am still running macos Sierra ... is there a solution within this
platform?  I have been getting around this by modifying Makevars when needed

* installing *source* package ‘sitmo’ ...

** package ‘sitmo’ successfully unpacked and MD5 sums checked

** using staged installation

** libs

clang++ -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG
-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk
-I/usr/local/include  -fopenmp -fPIC  -Wall -g -O2  -c RcppExports.cpp -o

clang: *error: *unsupported option '-fopenmp'

make: *** [RcppExports.o] Error 1

ERROR: compilation failed for package ‘sitmo’

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