RRD-Simple build problem

[Benoit Godefert <benoit.godefert%espci.fr@localhost>]

Hi,

I'm trying to build p5-RRD-Simple with pkg_comp on NetBSD-5.1.2, but 
bulding of cairo fails with this error message :

In file included from cairo-fontconfig-private.h:49,
                 from cairo-xlib-screen.c:66:
/pkg_comp/obj/pkgsrc/graphics/cairo/default/.x11-buildlink/include/fontconfig/fcfreetype.h:27:22: 
error: ft2build.h: No such file or directory
/pkg_comp/obj/pkgsrc/graphics/cairo/default/.x11-buildlink/include/fontconfig/fcfreetype.h:28:10: 
error: #include expects "FILENAME" or <FILENAME>
In file included from cairo-fontconfig-private.h:49,
                 from cairo-xlib-screen.c:66:
/pkg_comp/obj/pkgsrc/graphics/cairo/default/.x11-buildlink/include/fontconfig/fcfreetype.h:37: 
error: expected '=', ',', ';', 'asm' or '__attribute__' before 
'FcFreeTypeCharIndex'
/pkg_comp/obj/pkgsrc/graphics/cairo/default/.x11-buildlink/include/fontconfig/fcfreetype.h:40: 
error: expected ')' before 'face'
/pkg_comp/obj/pkgsrc/graphics/cairo/default/.x11-buildlink/include/fontconfig/fcfreetype.h:43: 
error: expected ')' before 'face'
/pkg_comp/obj/pkgsrc/graphics/cairo/default/.x11-buildlink/include/fontconfig/fcfreetype.h:46: 
error: expected declaration specifiers or '...' before 'FT_Face'
/pkg_comp/obj/pkgsrc/graphics/cairo/default/.x11-buildlink/include/fontconfig/fcfreetype.h:49: 
warning: type defaults to 'int' in declaration of 'FT_Face'
/pkg_comp/obj/pkgsrc/graphics/cairo/default/.x11-buildlink/include/fontconfig/fcfreetype.h:49: 
error: expected ';', ',' or ')' before 'f'
/pkg_comp/obj/pkgsrc/graphics/cairo/default/.x11-buildlink/include/fontconfig/fcfreetype.h:52: 
warning: type defaults to 'int' in declaration of 'FT_Face'
/pkg_comp/obj/pkgsrc/graphics/cairo/default/.x11-buildlink/include/fontconfig/fcfreetype.h:52: 
error: expected ';', ',' or ')' before 'face'
*** Error code 1

How to fix it ?

--
Benoit