[syslog-ng]problem compiling under sunOS 7

[ARGEXT-HIDALGO, FRANCISCO]

I have the following compilation error and no clue on what could the =
problem be. I never had this problem on other systems (Linux). Does =
anyone know whats the problem?
Thank you.

Making all in src
make  all-recursive
Making all in .
if gcc -DHAVE_CONFIG_H -I. -I/home/fhidalgo/syslog-ng-1.6.5/src -I.      =
-g -O2 -Wall -I/usr/local/include/libol -D_GNU_SOURCE -MT main.o -MD -MP =
-MF ".deps/main.Tpo" \
  -c -o main.o `test -f 'main.c' || echo =
'/home/fhidalgo/syslog-ng-1.6.5/src/'`main.c; \
then mv -f ".deps/main.Tpo" ".deps/main.Po"; \
else rm -f ".deps/main.Tpo"; exit 1; \
fi
/usr/ccs/bin/as: "/var/tmp/ccACFkjc.s", line 1210: error: unknown opcode =
".subsection"
/usr/ccs/bin/as: "/var/tmp/ccACFkjc.s", line 1210: error: statement =
syntax
/usr/ccs/bin/as: "/var/tmp/ccACFkjc.s", line 1218: error: unknown opcode =
".previous"
/usr/ccs/bin/as: "/var/tmp/ccACFkjc.s", line 1218: error: statement =
syntax
/usr/ccs/bin/as: "/var/tmp/ccACFkjc.s", line 2776: error: unknown opcode =
".subsection"
/usr/ccs/bin/as: "/var/tmp/ccACFkjc.s", line 2776: error: statement =
syntax
/usr/ccs/bin/as: "/var/tmp/ccACFkjc.s", line 2831: error: unknown opcode =
".previous"
/usr/ccs/bin/as: "/var/tmp/ccACFkjc.s", line 2831: error: statement =
syntax
*** Error code 1
make: Fatal error: Command failed for target `main.o'
Current working directory /home/fhidalgo/syslog-ng-1.6.5/src
*** Error code 1
make: Fatal error: Command failed for target `all-recursive'
Current working directory /home/fhidalgo/syslog-ng-1.6.5/src
*** Error code 1
make: Fatal error: Command failed for target `all'
Current working directory /home/fhidalgo/syslog-ng-1.6.5/src
*** Error code 1
make: Fatal error: Command failed for target `all-recursive'