> have anyone successfully compiled amanda on HPUX? Which parameter you
> defined for CFLAGS?

Compiled fine with the HP-UX ANSI C compiler (v03.37.01) on HP-UX 11i.  
Here's the original ./configure invocation, from the config/config.h 
file:

#define CONFIGURE_COMMAND "'configure' '--disable-libtool' 
'--disable-gcc' '--prefix=/opt/amanda' '--with-amandahosts' 
'--with-assertions' '--with-buffered-dump=yes' 
'--with-configdir=/opt/amanda/etc' '--with-debugging' 
'--with-gnutar-listdir=/var/opt/amanda/gnutar-lists' 
'--with-gnutar=/opt/gnu/bin/tar' '--with-group=amanda' 
'--with-pid-debug-files' '--with-rundump' '--with-user=amanda' 
'CFLAGS=+DAportable -D_XOPEN_SOURCE_EXTENDED -Ae'"

(I've also built earlier versions successfully using GCC 2.95.2, but I 
can't find what I used for CFLAGS in those builds...)

I take it that the default CFLAGS value doesn't working for you?

Good luck!