ffihugs [+G
] [option...] [+L
cc-option...] file
Suppose you have some C functions in test.c
and some ffi declarations for those functions in Test.hs
and the code in test.c needs to be
compiled with -lm
.
To use these with Hugs, you must first use ffihugs
to generate Test.c, compile it and link it against
test.c with -lm
to produce
Test.so:
ffihugs +G +L"test.c" +L"-lm" Test.hs(If Test.hs depends on other ffi modules, you'll have to compile them first.) Now you can run Hugs as normal; when Test.hs is loaded, Hugs will load Test.so.)
hugs Test.hsand then use the imported or exported functions.