problem building linuxthreads on RELENG_6

[Eric Schuele]

Hello,

I am trying to build MySQL with linuxthread support.  The build is 
failing within linuxthreads with the following error(s):

cc -O -pipe -march=pentium4 -g -O2 -Wall -DCOMPILING_LINUXTHREADS 
-I/usr/ports/devel/linuxthreads/work/linuxthreads-2.2.3_21 
-I/usr/ports/devel/linuxthreads/work/linuxthreads-2.2.3_21/sysdeps/i386 
-I/usr/ports/devel/linuxthreads/work/linuxthreads-2.2.3_21/sysdeps/pthread 
-I/usr/ports/devel/linuxthreads/work/linuxthreads-2.2.3_21/sysdeps/unix/sysv/linux 
-I/usr/src/lib/libc/stdtime -DLIBC_RCS -DLINUXTHREADS -D__USE_UNIX98 
-D__USE_XOPEN2K -D_STACK_GROWS_DOWN -DNEWLIBC -D_THREAD_SAFE 
-I/usr/src/lib/libc/i386 
-I/usr/ports/devel/linuxthreads/work/linuxthreads-2.2.3_21/sysdeps/i386 
  -c getnetby_r.c
getnetby_r.c:57: error: conflicting types for 'getnetbyaddr_r'
/usr/include/netdb.h:239: error: previous declaration of 
'getnetbyaddr_r' was here

The README.FreeBSD says that linuxthreads is only intended to run on 
5-current or 4.x.  Surely this is an outdated doc, right?

I can get passed the error by fiddling with the conditional 
compilations.  But surely I should not have to.

Is this a problem... or am I not supposed to be able to 'make install 
clean' linuxthreads?

-- 
Regards,
Eric