[R-package] suppress Wcast-function-type warning in CMake-based gcc a…

…nd MinGW builds (fixes #4273) (#4274) * [R-package] suppress Wcast-function-type warning in CMake-based gcc and MinGW builds (fixes #4273) * suppress warning from CMake side
microsoft · May 15, 2021 · db2e976 · db2e976
1 parent bffa6ca
commit db2e976
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -283,6 +283,9 @@ if(UNIX OR MINGW OR CYGWIN)
     if(NOT USE_OPENMP)
         SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unknown-pragmas -Wno-unused-private-field")
     endif()
+    if(__BUILD_FOR_R AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-cast-function-type")
+    endif()
 endif()
 
 if(WIN32 AND MINGW)