nfsim on amd64: va_list incompatible type error

[Max Kellermann <max@duempel.org>]

Hi,

I'm trying to get nfsim running on my Athlon 64.. (nfsim is definitely
cool stuff! I'll use it to test my H.323 ct helper module)

The easiest thing first: the README should mention that you need the
libreadline headers to compile (libreadline4-dev on Debian).

I applied Patrick's 4 patches to my svn/trunk working copy, they fixed
a lot of error messages concerning 64 bit portability. Plus, I had to
add 24 dummy bytes to pad cmdline_option (also Patrick's idea).

gcc -Wmissing-prototypes -Wstrict-prototypes -Wunused -Wall -g -Wa,-W
-I. -I/home/max/svn/nfsim/core -I/home/max/svn/nfsim/kernelenv/include
-I/home/max/svn/nfsim/netfilter/include  -c -o core/talloc.o
core/talloc.c
core/talloc.c: In function `talloc_vasprintf':
core/talloc.c:862: error: incompatible types in assignment
core/talloc.c:868: error: incompatible types in assignment
core/talloc.c: In function `talloc_vasprintf_append':
core/talloc.c:906: error: incompatible types in assignment
core/talloc.c:918: error: incompatible types in assignment

both gcc 1:3.3.5-5 and 3.4.3-6 (Debian) are affected. I found several
references to this behaviour on the net, one is a gcc bug report:

 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8262

.. but I fail to understand how to go around this limitation. When I
defined HAVE_VA_COPY as a workaround, the error went away. Where is
HAVE_VA_COPY meant to be defined?

nfsim works now, although most tests from nfsim-testsuite fail, is
that correct?  (on my P4 @work, nfsim segfaults, I'll analyze that
tomorrow).

Max