Compiling Amanda backup on HPUX 11

[Robert Early_3]

I'm having trouble compiling Amanda 2.4.2 on HPUX 11. I've
installed gcc, binutils, flex, readline, etc. but I'm still getting the following compile error:

Making all in common-src
gcc -DHAVE_CONFIG_H -I. -I. -I../config
-I./../regex-src -D_FILE_OFFSET_BITS=64
-D__STDC_EXT__ -I/opt/readline/include
-D_FILE_OFFSET_BITS=64 -g -O2 -c memmove.c
: warning: "__STDC_EXT__" redefined
: warning: this is the location of the
previous definition
In file included from memmove.c:31:
amanda.h:799: warning: conflicting types for built-in
function `fprintf'
amanda.h:916: warning: conflicting types for built-in
function `printf'
In file included from memmove.c:51:
../regex-src/fake/memmove.c: In function `memmove':
../regex-src/fake/memmove.c:13: argument `dst' doesn't
match prototype
cc1: prototype declaration
../regex-src/fake/memmove.c:13: argument `src' doesn't
match prototype
cc1: prototype declaration
*** Error exit code 1

I've posted the question to the Amanda-users list but haven't got a reply.

Do you have any idea what might be wrong?