## How to Use CMake with Multiple Compilers for the Same Language?-C++-php.cn

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## How to Use CMake with Multiple Compilers for the Same Language?

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Oct 25, 2024 pm 05:44 PM

## How to Use CMake with Multiple Compilers for the Same Language?

Using CMake with Multiple Compilers for the Same Language: Exploring Alternatives

Implementing multiple compilers for the same language within a single CMakeLists.txt has proven challenging due to CMake's inherent limitation of supporting only one compiler. This poses significant hurdles for projects requiring both host-and-cross compilation.

Unfortunately, CMake's rigidity makes it impossible to override the default behavior and set different compilers for specific targets. The only viable solution involves executing CMake multiple times, which can be cumbersome and inefficient.

One workaround involves employing custom commands, effectively creating glorified shell scripts. However, this approach lacks the desired level of control and elegance.

The ideal workaround involves separating different compilation processes into distinct CMakeLists.txt files. This approach eliminates the need for inter-architecture linking, reducing redundancies by including common script elements through include().

While sacrificing the convenience of a single build command, this solution offers a clean and effective way to work with multiple compilers for the same language. To mitigate the inconvenience, a wrapper script can automate the build process, calling the necessary CMake-makefiles.

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