gcc-3.3 build failure on pkgsrc

In file included from /usr/include/fcntl.h:252:0,
                 from ./system.h:208,
                 from ./collect2.c:30:
In function 'open',
    inlined from 'collect_execute' at ./collect2.c:1575:20:
/usr/include/x86_64-linux-gnu/bits/fcntl2.h:51:24: error: call to '__open_missing_mode' declared with attribute error: open with O_CREAT in second argument needs 3 arguments
insn-attrtab.c: In function 'get_attr_pent_prefix':
insn-attrtab.c:22674:24: warning: comparison between 'enum processor_type' and 'enum attr_cpu' [-Wenum-compare]
insn-attrtab.c: In function 'get_attr_prefix_0f':
insn-attrtab.c:23519:27: warning: comparison between 'enum processor_type' and 'enum attr_cpu' [-Wenum-compare]
make[1]: *** [collect2.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory `/home/emmanuel.kasper/Projects/netbsd/pkgsrc/lang/gcc3-c/work/gcc-3.3.6/gcc'

pkgsrc.conf:

cat netbsd/pkg/etc/mk.conf
# Example /home/emmanuel.kasper/Projects/netbsd/pkg/etc/mk.conf file produced by bootstrap-pkgsrc
# Mit Jul 11 13:12:07 CEST 2012

.ifdef BSD_PKG_MK       # begin pkgsrc settings


UNPRIVILEGED=           yes
PKG_DBDIR=              /home/emmanuel.kasper/Projects/netbsd/pkg/var/db/pkg
LOCALBASE=              /home/emmanuel.kasper/Projects/netbsd/pkg
VARBASE=                /home/emmanuel.kasper/Projects/netbsd/pkg/var
PKG_TOOLS_BIN=          /home/emmanuel.kasper/Projects/netbsd/pkg/sbin
PKGMANDIR=              man

TOOLS_PLATFORM.sh?=             /bin/bash

#BEGIN sergio.sh generated settings
MAKE_JOBS=3
X11_TYPE=modular
#END sergio.sh generated settings

.endif                  # end pkgsrc settings
PKG_OPTIONS.ffmpeg= faac