Compiler error

[Paolo Postai]

I tried to compile gmp on my workstation, but this is the error message:
>make[3]: Entering directory `/mnt/disk2/src/gmp-3.1.1/mpz'
>bin/sh ../libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I.. -I.. 
-DOPERAT
>ION_tstbit    -g -O2 -c -o tstbit.lo tstbit.c
>rm -f .libs/tstbit.lo
>gcc -DHAVE_CONFIG_H -I. -I. -I.. -I.. -DOPERATION_tstbit -g -O2 -c 
tstbit.c  -fP
>IC -DPIC -o .libs/tstbit.lo
>tstbit.c: In function `__gmpz_tstbit':
>tstbit.c:70: internal error--insn does not satisfy its constraints:
>(jump_insn 222 102 101 (parallel[
>            (set (pc)
>                (label_ref 219))
>            (set (reg:SI 88 SAR)
>                (reg:SI 20 %r20))
>        ] ) 270 {decrement_and_branch_until_zero+5} (nil)
>    (expr_list:REG_BR_PRED (const_int 14 [0xe])
>        (nil)))
>make[3]: *** [tstbit.lo] Error 1
Sorry but i'm not used to asm and so i can't understand the trouble.
I have a:
HP9000-712/80
hppa-1.1
HP-UX 10.01
gcc --version -> 2.95.2

Bye Paolo.