Mail Archives: cygwin/2004/01/08/12:38:16
The packaged CLISP is built using libsigsegv. However, that library is
not packaged with it, so it's not possible to do custom links of CLISP,
which some CLISP-based applications need to do!
(That is to say, some programs add their own C functions to CLISP by
adding them to the set of pieces from which CLISP is made to link
a custom image. These pieces, static libs really, are collectively
called a ``linking set''. When CLISP is built and installed, it
creates two linking sets by default, in $PREFIX/lib/clisp/base and
$PREFIX/lib/clisp/full representing a minimal and fully featured
image, respectively. CLISP includes a ``linkkit'' mechanism by which
new linking sets can be constructed based on adding material to existing
ones.)
Anyway, the packaged CLISP wants to link in -lsigsegv which it expects
to find in /usr/local/libsigsegv-cygin/lib. It's an external piece,
not part of the linking set. This reference is found
in the makevars file of both the base and full linking set:
/usr/lib/clisp/{base,full}/makevars.
The very location of the reference is fishy in itself since a package
unstalled in /usr shouldn't refer to /usr/local stuff!
It looks like the package was built against a locally installed
libsigsegv, introducing a dependency which was then overlooked.
If you don't have libsigsegv, CLISP will build without it; it's not an
essential dependency. In that case the makevars files will end up with
-DNO_SIGGSEGV in CFLAGS, and there is no reference to -lsigsegv in the
LIBS variable. In other words, rebuilding CLISP from scratch without
installing libsigsegv at all is one way to cure the problem. Another
fix would be to have a proper Cygwin package for this lib and make it a
dependency.
--
Meta-CVS: directory structure versioning; versioned symbolic links;
versioned execute permission; versioned property lists; easy branching
and merging and third party code tracking; all implemented over the
standard CVS command line client -- http://freshmeat.net/projects/mcvs
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
- Raw text -