How to selectively link certain system libraries statically into Haskell program binary?

Question

I\'m currently developing some web application written in Haskell. All Haskell libraries are statically linked; although this "bloats" the executable, it not so much o

Answer 1

You can use -optl to pass options directly to the linker, so to link everything statically, you can use:

ghc --make Main.hs -optl-static -optl-pthread

or put these in GHC-Options if you're using Cabal.

You can probably tweak this futher to have more fine grained control over what to link statically or dynamically. The -v (verbose) option is helpful here to see the final linker command.

Answer 2

dcoutts posted this as a reddit comment:

You can do exactly the same with ghc.

gcc -c prog.c -o prog.o
gcc prog.o libfoo.a -o prog

and lo, with ghc it's the same...

ghc -c prog.hs -o prog.o
ghc prog.o libfoo.a -o prog