current svn-branch doesn't compile on debian testing

[Flavio Rump]

hi
trying to compile my current svn of gnucash:

getting following errors:

[...]
make[4]: Entering directory `/home/flavio/downloads/gnucash-1.8/src/engine'
/bin/sh ../../libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. 
-I../..    -I../../lib/libc    -I../../src/gnc-module     
-I/usr/include/glib-1.2 -I/usr/lib/glib/include -I /usr/include/g-wrap  
-g -O2 -g -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations   
-Werror -c gw-engine.c
gcc -DHAVE_CONFIG_H -I. -I. -I../.. -I../../lib/libc 
-I../../src/gnc-module -I/usr/include/glib-1.2 -I/usr/lib/glib/include 
-I /usr/include/g-wrap -g -O2 -g -Wall -Wunused -Wmissing-prototypes 
-Wmissing-declarations -Werror -Wp,-MD,.deps/gw-engine.pp -c 
gw-engine.c  -fPIC -o .libs/gw-engine.o
cc1: warnings being treated as errors
In file included from ./gnc-book.h:41,
                 from ./Account.h:31,
                 from ./Group.h:30,
                 from gw-engine.c:18:
*./gnc-pricedb.h:176: warning: type qualifiers ignored on function 
return type*
make[4]: *** [gw-engine.lo] Error 1
make[4]: Leaving directory `/home/flavio/downloads/gnucash-1.8/src/engine'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/home/flavio/downloads/gnucash-1.8/src/engine'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/flavio/downloads/gnucash-1.8/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/flavio/downloads/gnucash-1.8'
make: *** [all-recursive-am] Error 2

what can I do?

thx alot

Flavio