c2hsc alternatives and similar packages
Based on the "Development" category.
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-
cabal-install-parsers
Scripts and instructions for using CI services (e.g. Travis CI or Appveyor) with multiple GHC configurations -
fourmolu
A fourk of ormolu that uses four space indentation and allows arbitrary configuration. Don't like it? PRs welcome!
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README
Converts C API header files to .hsc
and .hsc.helper.c
files
Usage: c2hsc --prefix=<Lib Prefix> <FILE>.h
This will create <FILE>.hsc
, and <FILE>.hsc.helper.c
if the header file
contains inline functions.
For example, in hlibgit2
on the Mac I'm using:
c2hsc --prefix=Bindings.Libgit2 --cppopts=-U__BLOCKS__ \
libgit2/include/git2/tree.h
Known issues:
- Need to output vararg functions with a comment mentioning they are not translatable to the Haskell FFI
Also, please note that this tool will never be 100% accurate. It cannot
translate macros, or anything related to the preprocessor, for example. It
often misses necessary #include
files, and will get them wrong in any case
if preprocessor conditionals are involved.
The goal of c2hsc
is to solve the hardest 80% of the problem of creating an
FFI library. The remaining 20%, plus validation of the results, is an
exercise necessarily left to the user.