Compiling latest CVS of gtksourceview fails

["Paulo J. Matos" <pocmatos gmail com>]

This is due to gcc version 4.1:
gcc -DHAVE_CONFIG_H -I. -I. -I.. -DDATADIR=\"/usr/local/share\"
-DG_LOG_DOMAIN=\"GtkSourceView\" -I.. -I. -DG_DISABLE_DEPRECATED
-DGDK_DISABLE_DEPRECATED -DGDK_PIXBUF_DISABLE_DEPRECATED
-DGTK_DISABLE_DEPRECATED -Wall -Wmissing-prototypes -Wnested-externs
-Wpointer-arith -Wno-sign-compare -Werror -Wno-pointer-sign
-I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include
-I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0
-I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include
-I/usr/include/libxml2 -I/usr/include/libgnomeprint-2.2
-I/usr/include/libart-2.0 -g -O2 -MT gtksourceview.lo -MD -MP -MF
.deps/gtksourceview.Tpo -c gtksourceview.c  -fPIC -DPIC -o
.libs/gtksourceview.o
cc1: warnings being treated as errors
gtksourceview.c: In function 'set_source_buffer':
gtksourceview.c:611: warning: dereferencing type-punned pointer will
break strict-aliasing rules
gtksourceview.c:618: warning: dereferencing type-punned pointer will
break strict-aliasing rules
make[4]: *** [gtksourceview.lo] Error 1

--
Paulo Jorge Matos - pocm at sat inesc-id pt
Web: http://sat.inesc-id.pt/~pocm
Computer and Software Engineering
INESC-ID - SAT Group