| #.rst: |
| # CMakeForceCompiler |
| # ------------------ |
| # |
| # Discouraged. Avoid using this module if possible. It will be deprecated |
| # by a future version of CMake once alternatives have been provided for all |
| # toolchain file use cases. |
| # |
| # The macros provided by this module were once intended for use by |
| # cross-compiling toolchain files when CMake was not able to automatically |
| # detect the compiler identification. Since the introduction of this module, |
| # CMake's compiler identification capabilities have improved and can now be |
| # taught to recognize any compiler. Furthermore, the suite of information |
| # CMake detects from a compiler is now too extensive to be provided by |
| # toolchain files using these macros. |
| # |
| # The only known remaining use case for these macros is to write toolchain |
| # files for cross-compilers that cannot link binaries without special flags or |
| # custom linker scripts. These macros cause CMake to skip checks it normally |
| # performs as part of enabling a language and introspecting the toolchain. |
| # However, skipping these checks may limit some generation functionality. |
| # |
| # ------------------------------------------------------------------------- |
| # |
| # Macro CMAKE_FORCE_C_COMPILER has the following signature: |
| # |
| # :: |
| # |
| # CMAKE_FORCE_C_COMPILER(<compiler> <compiler-id>) |
| # |
| # It sets CMAKE_C_COMPILER to the given compiler and the cmake internal |
| # variable CMAKE_C_COMPILER_ID to the given compiler-id. It also |
| # bypasses the check for working compiler and basic compiler information |
| # tests. |
| # |
| # Macro CMAKE_FORCE_CXX_COMPILER has the following signature: |
| # |
| # :: |
| # |
| # CMAKE_FORCE_CXX_COMPILER(<compiler> <compiler-id>) |
| # |
| # It sets CMAKE_CXX_COMPILER to the given compiler and the cmake |
| # internal variable CMAKE_CXX_COMPILER_ID to the given compiler-id. It |
| # also bypasses the check for working compiler and basic compiler |
| # information tests. |
| # |
| # Macro CMAKE_FORCE_Fortran_COMPILER has the following signature: |
| # |
| # :: |
| # |
| # CMAKE_FORCE_Fortran_COMPILER(<compiler> <compiler-id>) |
| # |
| # It sets CMAKE_Fortran_COMPILER to the given compiler and the cmake |
| # internal variable CMAKE_Fortran_COMPILER_ID to the given compiler-id. |
| # It also bypasses the check for working compiler and basic compiler |
| # information tests. |
| # |
| # So a simple toolchain file could look like this: |
| # |
| # :: |
| # |
| # include (CMakeForceCompiler) |
| # set(CMAKE_SYSTEM_NAME Generic) |
| # CMAKE_FORCE_C_COMPILER (chc12 MetrowerksHicross) |
| # CMAKE_FORCE_CXX_COMPILER (chc12 MetrowerksHicross) |
| |
| #============================================================================= |
| # Copyright 2007-2009 Kitware, Inc. |
| # |
| # Distributed under the OSI-approved BSD License (the "License"); |
| # see accompanying file Copyright.txt for details. |
| # |
| # This software is distributed WITHOUT ANY WARRANTY; without even the |
| # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| # See the License for more information. |
| #============================================================================= |
| # (To distribute this file outside of CMake, substitute the full |
| # License text for the above reference.) |
| |
| macro(CMAKE_FORCE_C_COMPILER compiler id) |
| set(CMAKE_C_COMPILER "${compiler}") |
| set(CMAKE_C_COMPILER_ID_RUN TRUE) |
| set(CMAKE_C_COMPILER_ID ${id}) |
| set(CMAKE_C_COMPILER_FORCED TRUE) |
| |
| # Set old compiler id variables. |
| if(CMAKE_C_COMPILER_ID MATCHES "GNU") |
| set(CMAKE_COMPILER_IS_GNUCC 1) |
| endif() |
| endmacro() |
| |
| macro(CMAKE_FORCE_CXX_COMPILER compiler id) |
| set(CMAKE_CXX_COMPILER "${compiler}") |
| set(CMAKE_CXX_COMPILER_ID_RUN TRUE) |
| set(CMAKE_CXX_COMPILER_ID ${id}) |
| set(CMAKE_CXX_COMPILER_FORCED TRUE) |
| |
| # Set old compiler id variables. |
| if("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU") |
| set(CMAKE_COMPILER_IS_GNUCXX 1) |
| endif() |
| endmacro() |
| |
| macro(CMAKE_FORCE_Fortran_COMPILER compiler id) |
| set(CMAKE_Fortran_COMPILER "${compiler}") |
| set(CMAKE_Fortran_COMPILER_ID_RUN TRUE) |
| set(CMAKE_Fortran_COMPILER_ID ${id}) |
| set(CMAKE_Fortran_COMPILER_FORCED TRUE) |
| |
| # Set old compiler id variables. |
| if(CMAKE_Fortran_COMPILER_ID MATCHES "GNU") |
| set(CMAKE_COMPILER_IS_GNUG77 1) |
| endif() |
| endmacro() |