Fastmap not installing for 1.1.1

[abiboakye]

Hello,

I am getting same error message with 3.5.1 can they confirm fastmap_1.1.1 works for R version 3.5.1. This is a dependency for sparklyr 1.1.0 to be able to install.

That is the error when i try to do the installation: Any help?
usr/local/lib/R/etc/Makeconf:168: recipe for target 'fastmap.o' failed
make: *** [fastmap.o] Error 1
ERROR: compilation failed for package ‘fastmap’

• removing ‘/home/cdsw/R/fastmap’
  Error: Failed to install 'unknown package' from URL:

[wch]

This is probably the same issue as rstudio/httpuv#360. I've copied and pasted the comment from @gadenbuie in that issue:

---

I think you're running into an issue caused by changes in CRAN policy around packages that contain C++ code. If you're interested in the backstory, there's an article on the tidyverse blog that explains the change.

The fix as described there is that for R <= 3.5, you may need to make a small change in your ~/.R/Makevars file to add the following line:

CXX_STD=CXX11

Please try this and let us know how it goes.