2 # These are macros intended to be used only when crosscompiling in the
3 # toolchain-file and only if the compiler is not able to link an
4 # executable by default (usually because they need user-specific
5 # linker files which describe the layout of the target memory).
7 # It offers the following macros:
9 # macro CMAKE_FORCE_SYSTEM(name version processor)
10 # Set CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_VERSION and CMAKE_SYSTEM_PROCESSOR
12 # macro CMAKE_FORCE_C_COMPILER(compiler compiler_id sizeof_void_p)
13 # Set CMAKE_C_COMPILER to the given compiler and set CMAKE_C_COMPILER_ID
14 # to the given compiler_id. This Id is used by cmake to construct the filename
15 # of the system-compiler.cmake file. For C also the size of a void-pointer
16 # has to be predefined.
18 # macro CMAKE_FORCE_CXX_COMPILER(compiler compiler_id)
19 # The same as CMAKE_FORCE_C_COMPILER, but for CXX. Here the size of
20 # the void pointer is not requried.
22 # So a simple toolchain file could look like this:
24 # INCLUDE (CMakeForceCompiler)
25 # CMAKE_FORCE_SYSTEM ("Generic" "0.0" "hc12")
26 # CMAKE_FORCE_C_COMPILER (chc12 FreescaleCHC12 2)
27 # CMAKE_FORCE_CXX_COMPILER (chc12 FreescaleCHC12)
30 MACRO(CMAKE_FORCE_SYSTEM name version proc)
31 SET(CMAKE_SYSTEM_NAME "${name}")
32 SET(CMAKE_SYSTEM_VERSION "${version}")
33 SET(CMAKE_SYSTEM_PROCESSOR "${proc}")
34 ENDMACRO(CMAKE_FORCE_SYSTEM)
36 MACRO(CMAKE_FORCE_C_COMPILER compiler id sizeof_void)
37 SET(CMAKE_C_COMPILER "${compiler}")
38 SET(CMAKE_C_COMPILER_ID_RUN TRUE)
39 SET(CMAKE_C_COMPILER_ID ${id})
40 SET(CMAKE_C_COMPILER_WORKS TRUE)
42 # Set old compiler and platform id variables.
43 IF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
44 SET(CMAKE_COMPILER_IS_GNUCC 1)
45 ENDIF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
47 SET(CMAKE_SIZEOF_VOID_P ${sizeof_void} CACHE STRING "sizeof void")
48 SET(HAVE_CMAKE_SIZEOF_VOID_P TRUE CACHE INTERNAL "have sizeof void")
49 ENDMACRO(CMAKE_FORCE_C_COMPILER)
51 MACRO(CMAKE_FORCE_CXX_COMPILER compiler id)
52 SET(CMAKE_CXX_COMPILER "${compiler}")
53 SET(CMAKE_CXX_COMPILER_ID_RUN TRUE)
54 SET(CMAKE_CXX_COMPILER_ID ${id})
55 SET(CMAKE_CXX_COMPILER_WORKS TRUE)
57 IF("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
58 SET(CMAKE_COMPILER_IS_GNUCXX 1)
59 ENDIF("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
61 ENDMACRO(CMAKE_FORCE_CXX_COMPILER)