Merge pull request #419 from Ryanf55/stop-using-CMAKE_COMPILER_IS_GNUCXX

Stop using deprecated CMAKE_COMPILER_IS_GNUCXX

Author: Ryanf55

grid_map_cmake_helpers/cmake/grid_map_package.cmake

@@ -16,7 +16,7 @@ macro(grid_map_package)
     set(CMAKE_CXX_STANDARD 17)
   endif()
 
-  if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     add_compile_options(-Wall -Wextra -Wpedantic -Werror -Wdeprecated -fPIC)
   endif()
 

grid_map_demos/CMakeLists.txt

@@ -201,7 +201,7 @@ set(targets_list
 )
 
 foreach(target ${targets_list})
-  if(CMAKE_COMPILER_IS_GNUCXX)
+  if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
     target_compile_options(${target} PRIVATE "SHELL:--param ggc-min-expand=1")
     target_compile_options(${target} PRIVATE "SHELL:--param ggc-min-heapsize=32768")
   endif()

grid_map_filters/CMakeLists.txt

@@ -87,7 +87,7 @@ foreach(lib_name ${filter_libs})
     ${dependencies}
   )
 
-  if(CMAKE_COMPILER_IS_GNUCXX)
+  if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
     target_compile_options(${lib_name} PRIVATE "SHELL:--param ggc-min-expand=1")
     target_compile_options(${lib_name} PRIVATE "SHELL:--param ggc-min-heapsize=32768")
   endif()