nightly fail on OI 151a8

gistfile1.txt

/code/illumos-gate/usr/src/tools/proto/root_i386-nd/opt/onbld/bin/i386/cw -_gcc -O  -Xa  -xildoff -errtags=yes -errwarn=%all -erroff=E_EMPTY_TRANSLATION_UNIT -erroff=E_STATEMENT_NOT_REACHED -_gcc=-Wno-missing-braces -_gcc=-Wno-sign-compare -_gcc=-Wno-unknown-pragmas -_gcc=-Wno-unused-parameter -_gcc=-Wno-missing-field-initializers -_gcc=-Wno-array-bounds -_gcc=-Wno-char-subscripts -_gcc=-Wno-uninitialized -_gcc=-Wno-unused-label -xc99=%none    -W0,-xglobalstatic -_gcc=-fno-inline-small-functions  -_gcc=-fno-inline-functions-called-once  -_gcc=-fno-ipa-cp    -I /code/illumos-gate/usr/src/lib/libc/port/locale -o native/collate.o -c collate.c
+ /opt/gcc/4.4.4/bin/gcc -fident -finline -fno-inline-functions -fno-builtin -fno-asm -fdiagnostics-show-option -nodefaultlibs -D__sun -O -Wall -Wextra -Werror -Wno-missing-braces -Wno-sign-compare -Wno-unknown-pragmas -Wno-unused-parameter -Wno-missing-field-initializers -Wno-array-bounds -Wno-char-subscripts -Wno-uninitialized -Wno-unused-label -std=gnu89 -fno-inline-small-functions -fno-inline-functions-called-once -fno-ipa-cp -I /code/illumos-gate/usr/src/lib/libc/port/locale -o native/collate.o -c collate.c
In file included from /code/illumos-gate/usr/src/lib/libc/port/locale/collate.h:36,
                 from collate.c:33:
/code/illumos-gate/usr/src/lib/libc/port/locale/localeimpl.h:29:21: error: xlocale.h: No such file or directory
In file included from /code/illumos-gate/usr/src/lib/libc/port/locale/collate.h:36,
                 from collate.c:33:
/code/illumos-gate/usr/src/lib/libc/port/locale/localeimpl.h:105: error: expected '=', ',', ';', 'asm' or '__attribute__' before '___global_locale'
In file included from collate.c:33:
/code/illumos-gate/usr/src/lib/libc/port/locale/collate.h:121: error: expected declaration specifiers or '...' before 'locale_t'
/code/illumos-gate/usr/src/lib/libc/port/locale/collate.h:122: error: expected declaration specifiers or '...' before 'locale_t'
*** Error code 1