Verified on OSX-10.3.6 (darwin 7.6.0) and FreeBSD-5.3 but I believe that the problem is platform 
independent:

tar xpzf samba-3.0.8.tar.gz
cd samba-3.0.8/source
./configure --disable-shared
<... snip>
make
<... snip>
Compiling libsmb/clifile.c
libsmb/clifile.c: In function `cli_unix_stat':
libsmb/clifile.c:216: error: `STAT_ST_BLOCKSIZE' undeclared (first use in this function)
libsmb/clifile.c:216: error: (Each undeclared identifier is reported only once
libsmb/clifile.c:216: error: for each function it appears in.)
make: *** [libsmb/clifile.o] Error 1

I see that in configure.in all the definitions for the macro STAT_ST_BLOCKSIZE (and other definitions/
checks possibly needed for various platforms, like BROKEN_GETGRNAM for netbsd etc) are in a case 
statment under the following if:

if test "$enable_shared" = "yes"; then
....
  case "$host_os" in
...
                     *darwin*)   AC_DEFINE(DARWINOS,1,[Whether the host os is Darwin/MacOSX])
                        BLDSHARED="true"
                        LDSHFLAGS="-bundle -flat_namespace -undefined suppress"
                        SHLIBEXT="dylib"
                        AC_DEFINE(STAT_ST_BLOCKSIZE,512)
                        ;;

This obviously fails to set STAT_ST_BLOCKSIZE and other various macros when building --disable-
shared

If it can help I have splitted the things and done a cleaned up configure.in, patch available by email if 
requested (I can't see in the bug report form a place to submit a patch).

Regards,

A.