[ci] [R-package] test against R 4.3 on Windows (#6061)

.ci/test_r_package_windows.ps1

@@ -55,12 +55,14 @@ Remove-From-Path ".*\\R\\.*"
 Remove-From-Path ".*R Client.*"
 Remove-From-Path ".*rtools40.*"
 Remove-From-Path ".*rtools42.*"
+Remove-From-Path ".*rtools43.*"
 Remove-From-Path ".*shells.*"
 Remove-From-Path ".*Strawberry.*"
 Remove-From-Path ".*tools.*"
 
 Remove-Item C:\rtools40 -Force -Recurse -ErrorAction Ignore
 Remove-Item C:\rtools42 -Force -Recurse -ErrorAction Ignore
+Remove-Item C:\rtools43 -Force -Recurse -ErrorAction Ignore
 
 # Get details needed for installing R components
 #
@@ -76,11 +78,11 @@ if ($env:R_MAJOR_VERSION -eq "3") {
   $env:RTOOLS_EXE_FILE = "rtools35-x86_64.exe"
   $env:R_WINDOWS_VERSION = "3.6.3"
 } elseif ($env:R_MAJOR_VERSION -eq "4") {
-  $RTOOLS_INSTALL_PATH = "C:\rtools42"
+  $RTOOLS_INSTALL_PATH = "C:\rtools43"
   $env:RTOOLS_BIN = "$RTOOLS_INSTALL_PATH\usr\bin"
   $env:RTOOLS_MINGW_BIN = "$RTOOLS_INSTALL_PATH\x86_64-w64-mingw32.static.posix\bin"
-  $env:RTOOLS_EXE_FILE = "rtools42-5253-5107.exe"
-  $env:R_WINDOWS_VERSION = "4.2.2"
+  $env:RTOOLS_EXE_FILE = "rtools43-5550-5548.exe"
+  $env:R_WINDOWS_VERSION = "4.3.1"
 } else {
   Write-Output "[ERROR] Unrecognized R version: $env:R_VERSION"
   Check-Output $false

.github/workflows/r_package.yml

@@ -86,7 +86,7 @@ jobs:
             task: r-package
             compiler: MINGW
             toolchain: MSYS
-            r_version: 4.2
+            r_version: 4.3
             build_type: cmake
             container: null
           # Visual Studio 2019
@@ -102,7 +102,7 @@ jobs:
             task: r-package
             compiler: MSVC
             toolchain: MSVC
-            r_version: 4.2
+            r_version: 4.3
             build_type: cmake
             container: null
           ###############
@@ -119,7 +119,7 @@ jobs:
             task: r-package
             compiler: MINGW
             toolchain: MSYS
-            r_version: 4.2
+            r_version: 4.3
             build_type: cran
             container: null
           - os: ubuntu-latest

CMakeLists.txt

@@ -383,6 +383,13 @@ if(MSVC)
         CMAKE_CXX_FLAGS_RELWITHDEBINFO
     )
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /MP")
+    if(__BUILD_FOR_R)
+        # MSVC does not like this commit:
+        # https://github.com/wch/r-source/commit/fb52ac1a610571fcb8ac92d886b9fefcffaa7d48
+        #
+        # and raises "error C3646: 'private_data_c': unknown override specifier"
+        add_definitions(-DR_LEGACY_RCOMPLEX)
+    endif()
     if(USE_DEBUG)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Od")
     else()

R-package/README.md

@@ -97,9 +97,10 @@ After installing `Rtools` and `CMake`, be sure the following paths are added to
     - If you have `Rtools` 4.0, example:
         - `C:\rtools40\mingw64\bin`
         - `C:\rtools40\usr\bin`
-    - If you have `Rtools` 4.2, example:
+    - If you have `Rtools` 4.2+, example:
         - `C:\rtools42\x86_64-w64-mingw32.static.posix\bin`
         - `C:\rtools42\usr\bin`
+        - **NOTE**: this is e.g. `rtools43\` for R 4.3
 * `CMake`
     - example: `C:\Program Files\CMake\bin`
 * `R`
@@ -107,7 +108,7 @@ After installing `Rtools` and `CMake`, be sure the following paths are added to
 
 NOTE: Two `Rtools` paths are required from `Rtools` 4.0 onwards because paths and the list of included software was changed in `Rtools` 4.0.
 
-NOTE: `Rtools42` takes a very different approach to the compiler toolchain than previous releases, and how you install it changes what is required to build packages. See ["Howto: Building R 4.2 and packages on Windows"](https://cran.r-project.org/bin/windows/base/howto-R-4.2.html).
+NOTE: `Rtools42` and later take a very different approach to the compiler toolchain than previous releases, and how you install it changes what is required to build packages. See ["Howto: Building R 4.2 and packages on Windows"](https://cran.r-project.org/bin/windows/base/howto-R-4.2.html).
 
 #### Windows Toolchain Options