fbd333f92c
Tweak WANTLIB (gmp only required when built with ghc). Take maintainership. Not that some regression tests fail. This will be fixed in the next release.
23 lines
1.2 KiB
Plaintext
23 lines
1.2 KiB
Plaintext
Rightly or wrongly, the C pre-processor is widely used in Haskell
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source code. It enables conditional compilation for different
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compilers, different versions of the same compiler, and different OS
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platforms. It is also occasionally used for its macro language, which
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can enable certain forms of platform-specific detail-filling, such as
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the tedious boilerplate generation of instance definitions and FFI
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declarations. However, there are two problems with cpp, aside from the
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obvious aesthetic ones:
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* For some Haskell systems, notably Hugs on Windows, a true cpp is
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not available by default.
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* Even for the other Haskell systems, the common cpp provided by the
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gcc 3.x and 4.x series has changed subtly in ways that are
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incompatible with Haskell's syntax. There have always been
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problems with, for instance, string gaps, and prime characters
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in identifiers. These problems are only going to get worse.
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So, it seemed right to provide an alternative to cpp, both more
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compatible with Haskell, and itself written in Haskell so that it
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can be distributed with compilers. This version of the C pre-processor
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is pretty-much feature-complete, and compatible with the -traditional
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style.
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