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Document specifying compiler path when using CMake #5339

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May 14, 2020
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Document specifying compiler path when using CMake #5339

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8 changes: 8 additions & 0 deletions COMPILING.md
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Expand Up @@ -255,6 +255,14 @@ require manual modification of build files.
to generate IDE projects by supplying the `-G` flag. Run `cmake -G` for a
comprehensive list of supported back-ends.

On macOS >10.14, the build will fail unless you explicitly specify
the full path to the compiler. This issue is being tracked
[here](https://github.com/diffblue/cbmc/issues/4956). The invocation thus
looks like this:
```
cmake -S. -Bbuild -DCMAKE_C_COMPILER=/usr/bin/clang
```

Generally it is not necessary to manually specify individual compiler or
linker flags, as CMake defines a number of "build modes" including Debug and
Release modes. To build in a particular mode, add the flag
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