Thread: segfault if I call func from a lib, why?

hi every1,
perhaps some one be able to help me in that worst deal...
actually I use libiptc & libxtables from netfilter project and have got this trace....
it happening every time if I do to call function from those libraries, e.g xtables_error(), xtables_find_target(), add_command() and any other..., but unfortunately everywhere I has segfault.

Code:

==21005== Invalid read of size 4
==21005==    at 0x4050D4B: xtables_find_target (xtables.c:626)
==21005==    by 0x804C723: main (in /home/quant/table)
==21005==  Address 0x4 is not stack'd, malloc'd or (recently) free'd
==21005==
==21005== Process terminating with default action of signal 11 (SIGSEGV)
==21005==  Access not within mapped region at address 0x4
==21005==    at 0x4050D4B: xtables_find_target (xtables.c:626)
==21005==    by 0x804C723: main (in /home/quant/table)
--21005-- REDIR: 0x40c4790 (free) redirected to 0x4022ad0 (free)
==21005==
==21005== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 19 from 1)

there... how i do configuration libs after building and installation.

Code:

./configure --prefix=/usr/local --enable-devel --enable-libipq --enable-static

Option "--enable-static" maybe installing static version of netfilter libraries while cc wants the dynamic ones.
Is there an option to install the dynamically linked netfilter libraries?

Brewbuck,

I agree with you about that