> hi, i wrote some utilities to make my coding a little easier
> and i put them in some libraries. then to use them i made a
> package conf file and added it with ghc-pkg -a. i then tried
> compiling them with
>
> ghc -package-name extensions -c Foo.hs
>
> but i am not sure i am compiling it right as i get linker
> errors of the form
>
> /usr/libexec/elf/ld: cannot find -lDirectoryAndExtensions
>
> whenever i try to compile a program that uses my libraries.
I can't tell exactly what's wrong from this error message - what does
your package conf file look like?
> i can fix this by copying all the .o files to libFoo.a files.
> what is the right way to compile libraries?
You should make a lifFoo.a for static linking, and a single Foo.o for
use with GHCi. The documentation on packages in the user guide explains
how to do this.
Cheers,
Simon
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