Jochen L. Leidner wrote:

sorry for an urgent newbie question: how can I create a statically compiled version of a Haskell program on Linux with GHC that does not rely on external shared libs (also for any of its libraries it uses)?

Possibly with a great deal of difficulty, depending upon which functions you need to use. GNU libc 2.x dynamically loads shared libraries (with dlopen()) for various "database" lookups (passwd, group, hosts etc). This applies even when using a static libc (libc.a). If you need to call (directly or indirectly) any of the functions which use this mechanism, then you have to either: a) have (the correct versions of) the relevant libnss_*.so libraries installed on the target system, or b) you have to compile your own libc.a using the --enable-static-nss switch. The most common functions which require this mechanism are those which access the passwd database (getpwnam, getpwuid, etc) and those which perform hostname/domain lookups (gethostbyname etc). Even if you don't use these functions directly from your program, the libraries which you use might use them. E.g.: + X needs to resolve the hostname part of $DISPLAY, so anything which uses X is affected. + Anything which supports the "~user" syntax to refer to a specific user's home directory will need to use getpwnam(). + Anything which needs to translate between UIDs and usernames will need to use getpwnam() and/or getpwuid(). + Etc. -- Glynn Clements