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# These are macros intended to be used only when crosscompiling in the
# toolchain-file and only if the compiler is not able to link an
# executable by default (usually because they need user-specific
# linker files which describe the layout of the target memory).
#
# It offers the following macros:
#
# macro CMAKE_FORCE_SYSTEM(name version processor)
# Set CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_VERSION and CMAKE_SYSTEM_PROCESSOR
#
# macro CMAKE_FORCE_C_COMPILER(compiler compiler_id sizeof_void_p)
# Set CMAKE_C_COMPILER to the given compiler and set CMAKE_C_COMPILER_ID
# to the given compiler_id. This Id is used by cmake to construct the filename
# of the system-compiler.cmake file. For C also the size of a void-pointer
# has to be predefined.
#
# macro CMAKE_FORCE_CXX_COMPILER(compiler compiler_id)
# The same as CMAKE_FORCE_C_COMPILER, but for CXX. Here the size of
# the void pointer is not requried.
#
# So a simple toolchain file could look like this:
#
# INCLUDE (CMakeForceCompiler)
# CMAKE_FORCE_SYSTEM ("Generic" "0.0" "hc12")
# CMAKE_FORCE_C_COMPILER (chc12 FreescaleCHC12 2)
# CMAKE_FORCE_CXX_COMPILER (chc12 FreescaleCHC12)
MACRO(CMAKE_FORCE_SYSTEM name version proc)
SET(CMAKE_SYSTEM_NAME "${name}")
SET(CMAKE_SYSTEM_VERSION "${version}")
SET(CMAKE_SYSTEM_PROCESSOR "${proc}")
ENDMACRO(CMAKE_FORCE_SYSTEM)
MACRO(CMAKE_FORCE_C_COMPILER compiler id sizeof_void)
SET(CMAKE_C_COMPILER "${compiler}")
SET(CMAKE_C_COMPILER_ID_RUN TRUE)
SET(CMAKE_C_COMPILER_ID ${id})
SET(CMAKE_C_COMPILER_WORKS TRUE)
# Set old compiler and platform id variables.
IF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
SET(CMAKE_COMPILER_IS_GNUCC 1)
ENDIF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
SET(CMAKE_SIZEOF_VOID_P ${sizeof_void} CACHE STRING "sizeof void")
SET(HAVE_CMAKE_SIZEOF_VOID_P TRUE CACHE INTERNAL "have sizeof void")
ENDMACRO(CMAKE_FORCE_C_COMPILER)
MACRO(CMAKE_FORCE_CXX_COMPILER compiler id)
SET(CMAKE_CXX_COMPILER "${compiler}")
SET(CMAKE_CXX_COMPILER_ID_RUN TRUE)
SET(CMAKE_CXX_COMPILER_ID ${id})
SET(CMAKE_CXX_COMPILER_WORKS TRUE)
IF("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
SET(CMAKE_COMPILER_IS_GNUCXX 1)
ENDIF("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
ENDMACRO(CMAKE_FORCE_CXX_COMPILER)
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