compiling in the Sun sparc

[kawahata]

Hello,
I cannot compile Electric-6.03 in the Sun sparc (solaris 2.5).
The C compiler is gcc 2.95.2.
I attached the list below. I think my system have not inttypes.h
or stdint.h. Is it right? How should I troubleshoot?
please give me any suggestion.

# ./configure

...(omit)...

checking for stdint.h... (cached) no
checking for inttypes.h... (cached) no
checking for sys/int_types.h... (cached) no

...(omit)...

# make
gcc       -Isrc/include -c src/cons/conlay.c -o src/cons/conlay.o
In file included from src/include/global.h:31,
                 from src/cons/conlay.c:30:
src/include/config.h:112: parse error before `u_int64_t'
src/include/config.h:112: warning: data definition has no type or
storage class
In file included from src/cons/conlay.c:30:
src/include/global.h:65: parse error before `INTHUGE'
src/include/global.h:65: warning: data definition has no type or storage
class
src/include/global.h:66: parse error before `UINTHUGE'
src/include/global.h:66: warning: data definition has no type or storage
class
*** Error code 1
make: Fatal error: Command failed for target `src/cons/conlay.o'

Best regards.
Ken kawahata