guile-1.8.1 build fails in libguile/threads.c on Solaris2.6

[anirkko]

Hi
The guile-1.8.1 build fails in libguile/threads.c on Solaris2.6
(see output below).

Workaround: configure with  --without-threads

Greetings
Arto


output of 'gmake':
---------------------------------------------------------------
...
gcc -DHAVE_CONFIG_H -I. -I/build/guile-1.8.1/libguile -I.. -I.. 
-I/build/guile-1.8.1 -D_REENTRANT -pthreads -O2 -funswitch-loops 
-fgcse-after-reload -mcpu=supersparc -mno-app-regs -Wall -Wmissing-prototypes 
-Werror -MT libguile_la-threads.lo -MD -MP -MF .deps/libguile_la-threads.Tpo -c 
/build/guile-1.8.1/libguile/threads.c -o libguile_la-threads.o
cc1: warnings being treated as errors
/build/guile-1.8.1/libguile/threads.c: In function 'scm_threads_prehistory':
/build/guile-1.8.1/libguile/threads.c:1611: warning: implicit declaration of 
function 'pthread_mutexattr_settype'
/build/guile-1.8.1/libguile/threads.c:1612: error: 'PTHREAD_MUTEX_RECURSIVE' 
undeclared (first use in this function)
/build/guile-1.8.1/libguile/threads.c:1612: error: (Each undeclared identifier 
is reported only once
/build/guile-1.8.1/libguile/threads.c:1612: error: for each function it appears 
in.)
gmake[3]: *** [libguile_la-threads.lo] Error 1
gmake[3]: Leaving directory ...
...
...