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Question

I have a two macro names, for example:
macro(my_macro1)
# stuff only to use in this macro
endmacro()
macro(my_macro2)
# stuff only to use in this macro
endmacro()
I'd like to dynamic call the macros based a variable name, for example:
if (...)
set (ver 1)
else ()
set (ver 2)
endif ()
my_macro${ver} # this is my idea
Any help?

Answer 1

As #Tsyvarev has commented CMake doesn't support dynamic function names. So here are some alternatives:
Simple Approach
macro(my_macro ver)
if(${ver} EQUAL 1)
my_macro1()
elseif(${ver} EQUAL 2)
my_macro2()
else()
message(FATAL_ERROR "Unsupported macro")
endif()
endmacro()
set(ver 1)
my_macro(ver)
set(ver 2)
my_macro(ver)
A call() Function Implementation
Building on #Fraser work here is a more generic call() function implementation:
function(call _id)
if (NOT COMMAND ${_id})
message(FATAL_ERROR "Unsupported function/macro \"${_id}\"")
else()
set(_helper "${CMAKE_BINARY_DIR}/helpers/macro_helper_${_id}.cmake")
if (NOT EXISTS "${_helper}")
file(WRITE "${_helper}" "${_id}(\$\{ARGN\})\n")
endif()
include("${_helper}")
endif()
endfunction()
set(ver 1)
call(my_macro${ver})
set(ver 2)
call(my_macro${ver})