Visibility: the Intel compiler does not support -fvisibility on windows

Modules/Compiler/Intel-C.cmake

@@ -8,9 +8,5 @@ set(CMAKE_C_FLAGS_RELWITHDEBINFO_INIT "-O2 -g -DNDEBUG")
 
 set(CMAKE_DEPFILE_FLAGS_C "-MMD -MT <OBJECT> -MF <DEPFILE>")
 
-if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 12.0)
-  set(CMAKE_C_COMPILE_OPTIONS_VISIBILITY "-fvisibility=")
-endif()
-
 set(CMAKE_C_CREATE_PREPROCESSED_SOURCE "<CMAKE_C_COMPILER> <DEFINES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
 set(CMAKE_C_CREATE_ASSEMBLY_SOURCE "<CMAKE_C_COMPILER> <DEFINES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")

Modules/Compiler/Intel-CXX.cmake

@@ -8,9 +8,5 @@ set(CMAKE_CXX_FLAGS_RELWITHDEBINFO_INIT "-O2 -g -DNDEBUG")
 
 set(CMAKE_DEPFILE_FLAGS_CXX "-MMD -MT <OBJECT> -MF <DEPFILE>")
 
-if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.0)
-  set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY "-fvisibility=")
-endif()
-
 set(CMAKE_CXX_CREATE_PREPROCESSED_SOURCE "<CMAKE_CXX_COMPILER> <DEFINES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
 set(CMAKE_CXX_CREATE_ASSEMBLY_SOURCE "<CMAKE_CXX_COMPILER> <DEFINES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")

Modules/Platform/Darwin-icc.cmake

@@ -75,6 +75,12 @@ if(XCODE)
   set(CMAKE_INCLUDE_SYSTEM_FLAG_CXX)
 endif()
 
+if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 12.0)
+  set(CMAKE_C_COMPILE_OPTIONS_VISIBILITY "-fvisibility=")
+  set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY "-fvisibility=")
+endif()
+
+
 set(CMAKE_MacOSX_Content_COMPILE_OBJECT "\"${CMAKE_COMMAND}\" -E copy_if_different <SOURCE> <OBJECT>")
 
 set(CMAKE_C_CREATE_SHARED_LIBRARY

Modules/Platform/Linux-Intel.cmake

@@ -47,4 +47,8 @@ macro(__linux_compiler_intel lang)
       "${XIAR} cr <TARGET> <LINK_FLAGS> <OBJECTS> "
       "${XIAR} -s <TARGET> ")
   endif()
+
+  if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 12.0)
+    set(CMAKE_${lang}_COMPILE_OPTIONS_VISIBILITY "-fvisibility=")
+  endif()
 endmacro()