can't make balsa-1.0.pre1 - libbalsa error

[David Turley <dturley pobox com>]

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I'm trying to build Balsa, configure runs fine, make dies as below:

Making all in libbalsa
make[2]: Entering directory `/home/david/temp/balsa-1.0.pre1/libbalsa'
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I. -I.. -I../libmutt  -I/usr/include
-DNEED_GNOMESUPPORT_H -I/usr/lib/gnome-libs/include -I/usr/lib/glib/include
-I/usr/X11R6/include  -I/usr/lib/glib/include  -g -O2 -I/usr/lib/glib/include
-D_REENTRANT         -Wall -Wno-uninitialized         -Wchar-subscripts
-Wmissing-declarations -Wmissing-prototypes
       -Wnested-externs -Wpointer-arith         -Wno-sign-compare -Wsign-promo 
       -Werror -c message.c
cc1: warnings being treated as errors
/usr/include/bits/string2.h: In function `__strcpy_small':
In file included from /usr/include/string.h:346,
                 from /usr/include/libgnomeui/gnome-mdi-session.h:10,
                 from /usr/include/libgnomeui/libgnomeui.h:99,
                 from /usr/include/gnome.h:17,
                 from libbalsa_private.h:23,
                 from message.c:32:
/usr/include/bits/string2.h:419: warning: pointer of type `void *' used in
arithmetic
/usr/include/bits/string2.h:427: warning: pointer of type `void *' used in
arithmetic
/usr/include/bits/string2.h:432: warning: pointer of type `void *' used in
arithmetic
/usr/include/bits/string2.h:437: warning: pointer of type `void *' used in
arithmetic
/usr/include/bits/string2.h:439: warning: pointer of type `void *' used in
arithmetic
/usr/include/bits/string2.h:444: warning: pointer of type `void *' used in
arithmetic
make[2]: *** [message.o] Error 1
make[2]: Leaving directory `/home/david/temp/balsa-1.0.pre1/libbalsa'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/david/temp/balsa-1.0.pre1'
make: *** [all-recursive-am] Error 2   

CC'd replies appreciated.