Alberto Ruiz wrote:
If you don't use the foreign function interface I think that you only need the -L option:
ghc --make -L/usr/local/lib/ghc-6.8.1/gmp -O2 -o edimail Main.hs
Something similar worked for me, but this new behavior is not very reasonable. Could it be a bug?
It looks like a problem with the binary distributions. They include gmp, but somehow don't install it. As a workaround, you can take gmp.h and libgmp.a from from the binary tarball and put them by hand into /usr/local/lib/ghc-6.8.1 (or wherever you installed it). Alternatively you can install a suitable gmp package using your OS's package manager (you didn't say which flavour of Linux you're on). BTW, a better place to ask questions about GHC is glasgow-haskell-users@haskell.org, you're more likely to get a quick answer. Cheers, Simon