guile won't compile solaris 10, ultra enterprise

[LICON, RAY (ATTPB)]

fails to make, using gcc 3.4.6, make 3.81, with source guile-1.8.3

 Any recommendations?

 -thanks

 Ray Licon ...

.....................>>>>>
# make
make  all-recursive
make[1]: Entering directory `/usr/local/src/guile-1.8.3'
Making all in oop
/usr/local/src/guile-1.8.3/oop
make[2]: Entering directory `/usr/local/src/guile-1.8.3/oop'
Making all in goops
/usr/local/src/guile-1.8.3/oop/goops
make[3]: Entering directory `/usr/local/src/guile-1.8.3/oop/goops'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/usr/local/src/guile-1.8.3/oop/goops'
make[3]: Entering directory `/usr/local/src/guile-1.8.3/oop'
make[3]: Nothing to be done for `all-am'.
make[3]: Leaving directory `/usr/local/src/guile-1.8.3/oop'
make[2]: Leaving directory `/usr/local/src/guile-1.8.3/oop'
Making all in libguile
/usr/local/src/guile-1.8.3/libguile
make[2]: Entering directory `/usr/local/src/guile-1.8.3/libguile'
make  all-am
make[3]: Entering directory `/usr/local/src/guile-1.8.3/libguile'
/bin/bash ../libtool --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. 
-I.. -I..   -D_REENTRANT
 -pthreads -O2 -m64  -mcpu=ultrasparc -mtune=ultrasparc  -Wall 
-Wmissing-prototypes -Werror -MT libg
uile_la-numbers.lo -MD -MP -MF .deps/libguile_la-numbers.Tpo -c -o 
libguile_la-numbers.lo `test -f '
numbers.c' || echo './'`numbers.c
 gcc -DHAVE_CONFIG_H -I. -I.. -I.. -I.. -D_REENTRANT -pthreads -O2 -m64 
-mcpu=ultrasparc -mtune=ultr
asparc -Wall -Wmissing-prototypes -Werror -MT libguile_la-numbers.lo -MD -MP 
-MF .deps/libguile_la-n
umbers.Tpo -c numbers.c  -fPIC -DPIC -o .libs/libguile_la-numbers.o
numbers.c: In function `scm_log':
numbers.c:6015: error: `_Complex_I' undeclared (first use in this function)
numbers.c:6015: error: (Each undeclared identifier is reported only once
numbers.c:6015: error: for each function it appears in.)
numbers.c: In function `scm_exp':
numbers.c:6081: error: `_Complex_I' undeclared (first use in this function)
make[3]: *** [libguile_la-numbers.lo] Error 1
make[3]: Leaving directory `/usr/local/src/guile-1.8.3/libguile'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/usr/local/src/guile-1.8.3/libguile'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/local/src/guile-1.8.3'
make: *** [all] Error 2

Ray Licon
AT&T WEST 
Advanced Technical Support
310-762-6968