Hello world, I'm new !
I don't know if it's the best place to ask this, but I'm new on this mailing list and I'm French so...I have to concentrate myself to read en write. I'm sorry if I do some spellings...
But my problem is that I have a problem when I want build Inkscape on my PC (with Windows 7). I follow these instructions : http://wiki.inkscape.org/wiki/index.php/Win32Port But the last act (C:\src\inkscape\trunk> btool) don't work  :(  I can see a lot of errors like that :

============ cmd ============
mingw32-g++ -c -Wall -Wformat -Werror=format-security -W -Wpointer-arith -Wcast-
align -Wsign-compare -Woverloaded-virtual -Wswitch -O2 -mms-bitfields -fopenmp -
DVERSION=\"0.47+devel\" -DHAVE_CONFIG_H -D_INTL_REDIRECT_INLINE -DHAVE_SSL -DREL
AYTOOL_SSL="static const int libssl_is_present=1; static int __attribute__((unus
ed)) libssl_symbol_is_present(char *s){ return 1; }" -DPOPPLER_NEW_GFXFONT -I. -
Ic:\devlibs/include -Ic:\devlibs/include/gtkmm-2.4 -Ic:\devlibs/lib/gtkmm-2.4/in
clude -Ic:\devlibs/include/glibmm-2.4 -Ic:\devlibs/lib/glibmm-2.4/include  -Ic:\
devlibs/include/glib-2.0 -Ic:\devlibs/lib/glib-2.0/include -mms-bitfields -Ic:\d
evlibs/include/sigc++-2.0 -Ic:\devlibs/lib/sigc++-2.0/include -Ic:\devlibs/inclu
de/giomm-2.4 -Ic:\devlibs/lib/giomm-2.4/include  -Ic:\devlibs/include/gdkmm-2.4
-Ic:\devlibs/lib/gdkmm-2.4/include -Ic:\devlibs/include/pangomm-1.4  -Ic:\devlib
s/lib/pangomm-1.4/include -Ic:\devlibs/include/gtk-2.0 -Ic:\devlibs/lib/gtk-2.0/
include -Ic:\devlibs/include/gtk-2.0 -Ic:\devlibs/include/pango-1.0 -Ic:\devlibs
/include/pango-1.0 -Ic:\devlibs/include/pango-1.0 -Ic:\devlibs/include/cairo -Ic
:\devlibs/include/cairomm-1.0 -Ic:\devlibs/lib/cairomm-1.0/include -Ic:\devlibs/
include/atkmm-1.6 -Ic:\devlibs/include/atk-1.0 -Ic:\devlibs/include/gtk-2.0 -mms
-bitfields -Ic:\devlibs/include/gtk-2.0 -Ic:\devlibs/lib/gtk-2.0/include -Ic:\de
vlibs/include/ImageMagick -Ic:\devlibs/include/ImageMagick -fopenmp -D_MAGICKDLL
_ -Ic:\devlibs/include/libxml2 -Ic:\devlibs/include/freetype2 -Ic:\devlibs/inclu
de -Ic:\devlibs/include/cairo -Ic:\devlibs/include/poppler -Ic:\devlibs/include/
gc -Ic:\devlibs/include/libwpg-0.1 -Ic:\devlibs/include/libwpd-0.8 -Ic:\devlibs/
include/libwpg-0.1 -Ic:\devlibs/include/libwpd-0.8 -Icxxtest -Ic:\devlibs/python
/include -Isrc/bind/javainc -Isrc/bind/javainc/win32  -Isrc  -Isrc/2geom -Isrc/2
geom/numeric -Isrc/application -Isrc/bind -Isrc/debug -Isrc/dialogs -Isrc/displa
y -Isrc/dom -Isrc/dom/io -Isrc/dom/odf -Isrc/dom/util -Isrc/extension -Isrc/exte
nsion/implementation -Isrc/extension/internal -Isrc/extension/internal/bitmap -I
src/extension/internal/filter -Isrc/extension/internal/pdfinput -Isrc/extension/
script -Isrc/filters -Isrc/helper -Isrc/io -Isrc/jabber_whiteboard -Isrc/jabber_
whiteboard/dialog -Isrc/libavoid -Isrc/libcola -Isrc/libcroco -Isrc/libgdl -Isrc
/libnr -Isrc/libnrtype -Isrc/libvpsc -Isrc/libvpsc/pairingheap -Isrc/livarot -Is
rc/live_effects -Isrc/live_effects/parameter -Isrc/pedro -Isrc/svg -Isrc/trace -
Isrc/trace/potrace -Isrc/ui -Isrc/ui/cache -Isrc/ui/dialog -Isrc/ui/tool -Isrc/u
i/view -Isrc/ui/widget -Isrc/util -Isrc/widgets -Isrc/xml src/xml/subtree.cpp -o
 build/obj/xml/subtree.o
=============================
Make error line 299: problem compiling: cc1plus.exe: error: unrecognized command
 line option "-Werror=format-security"
cc1plus.exe: error: unrecognized command line option "-fopenmp"
cc1plus.exe: error: unrecognized command line option "-fopenmp"

Can you anderstand why I can't build it ?
I need your help, I thank you if you answer me :)