Compilation failing under Manjaro linux

[karpfen]

Hi, I'm trying to install later from CRAN (I also tried the development version), but I keep running into an error when compiling the package. The failing call looks like this:

g++ -I"/usr/include/R/" -DNDEBUG -pthread -DTHREADS_H_SUPPORT=1 -I"/home/karpfen/R/lib/Rcpp/include" -I"/home/karpfen/R/lib/BH/include" -D_FORTIFY_SOURCE=2 -fopenmp -fpic -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -fno-plt -c timestamp_win32.cpp -o timestamp_win32.o

Error message: make: *** No rule to make target '-fopenmp', needed by 'later.so'. Stop.

Relevant software info:

• Linux version 4.14.74-1-MANJARO
• Distribution: Manjaro Linux 18.0.0-rc
• R: 3.5.1
• g++: g++ (GCC) 8.2.1 20180831

Anything I could be doing wrong here?
Thanks for your help!

[wch]

That's strange -- it looks like g++ is treating -fopenmp as a filename instead of a flag. If you're familiar with Docker, are you able to provide a Dockerfile that reproduces this? Are you able to install other packages that require compilation?

[karpfen]

I didn't manage to get a docker image running, I'm not too familiar with it and don't have the time right now. But other compiled packages work as expected.

[karpfen]

Update: I managed to install it with some help.

I had to remove $(SHLIB): @libs@ in src/Makevars.in. I don't understand what causes the error, though.

[wch]

@karpfen I believe that PR #79 should fix this. Can you give that a try and let us know how it goes?

[karpfen]

Thanks for the heads up! I just tried it and it works as expected now.