RStudio can not complete the install of rlang version: rlang_1.1.5.tar.gz in Windows

[AndrewO2554]

I am installing the package: tidyverse which includes rlang_1.1.5.tar.gz. Running the install produces teh following error:

• installing source package 'rlang' ...
  ** package 'rlang' successfully unpacked and MD5 sums checked
  ** using staged installation
  ** libs
  using C compiler: 'gcc (GCC) 12.4.0'
  gcc -I"C:/PROGRA1/R/R-441.2/include" -DNDEBUG -I./rlang/ -I"c:/rtools44/x86_64-w64-mingw32.static.posix/include" -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c capture.c -o capture.o
  gcc -I"C:/PROGRA1/R/R-441.2/include" -DNDEBUG -I./rlang/ -I"c:/rtools44/x86_64-w64-mingw32.static.posix/include" -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c internal.c -o internal.o
  gcc -I"C:/PROGRA1/R/R-441.2/include" -DNDEBUG -I./rlang/ -I"c:/rtools44/x86_64-w64-mingw32.static.posix/include" -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c rlang.c -o rlang.o
  In file included from rlang/rlang.c:7,
  from rlang.c:5:
  rlang/cnd.c:95:10: fatal error: Rinterface.h: No such file or directory
  95 | #include <Rinterface.h>
  | ^~~~~~~~~~~~~~
  compilation terminated.
  make: *** [C:/PROGRA1/R/R-441.2/etc/x64/Makeconf:289: rlang.o] Error 1
  ERROR: compilation failed for package 'rlang'
• removing 'C:/Users/ouell/AppData/Local/R/win-library/4.4/rlang'
  Warning in install.packages :
  installation of package ‘rlang’ had non-zero exit status

I investigated further and noted that the package cntains the following file: rlang\src\rlang\cnd.c which contained the following line:
#include <Rinterface.h>

This is missing in the package and if I understand, thi sis only a Linux file. I was able to comment this line out and rerun the following command successfully.

gcc -I"C:/PROGRA1/R/R-441.2/include" -DNDEBUG -I./rlang/ -I"c:/rtools44/x86_64-w64-mingw32.static.posix/include" -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c rlang.c -o rlang.o

The date on this file is recent 2025-01-17 14:30 748K so it may be that this has been newly introduced.

The file is located here: https://cran.rstudio.com/src/contrib/

[lionel-]

It seems like you're not set up to build packages. Do you have Rtools installed?

The Windows binaries are now up so you should be able to install from binary instead.