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```
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- The plan is to write a small shim-like C library that implements a uniform adapter for `integer-gmp2` to call into, that wraps libraries such as GMP or `bsdnt`. This small adapter is then selected at link-time by `ghc --make` similiar to how `ghc` selects one of its various runtimes (threaded, debugging, non-threaded, ...)
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## Simplifying 3rd party GMP-addon packages
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- `integer-gmp-1.0.0` provides an installed `<ghc-gmp.h>` header which is supposed to either include the system-wide `<gmp.h>` header, or correspond to the in-tree's GMP headers content.
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- `integer-gmp-1.0.0` persists meta-information about the build-time GMP library used in `HsIntegerGmp.h`.
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>
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> Here's an example for the definitions created for the in-tree GMP:
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>
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> ```
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> #define GHC_GMP_INTREE 1
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> #define GHC_GMP_VERSION_MJ 5
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> #define GHC_GMP_VERSION_MI 0
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> #define GHC_GMP_VERSION_PL 4
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> #define GHC_GMP_VERSION (5 * 10000 + 0 * 100 + 4)
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> ```
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>
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>
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> And here's an example for a system-installed GMP:
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>
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> ```
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> #define GHC_GMP_INTREE 0
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> #define GHC_GMP_VERSION_MJ 6
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> #define GHC_GMP_VERSION_MI 0
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> #define GHC_GMP_VERSION_PL 0
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> #define GHC_GMP_VERSION (6 * 10000 + 0 * 100 + 0)
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> ``` |
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\ No newline at end of file |
