building php v5.4 on i586 "--with-xpm-dir=/usr" fails make @ "grep: /usr/lib/libxcb.la: No such file or directory" ??

hi,

i'm building php v5.4 from svn sources on both x86_64 & i586 boxes.

on x86_64, all builds OK.

on i586, with the same config, using the configure option of

	--with-xpm-dir=/usr

, which, again, works OK on x86_64, the build fails @ libxcb ...

	...
	/bin/sh /usr/local/src/PHP_5_4/libtool --silent
	--preserve-dup-deps --mode=link cc -DPHP_ATOM_INC
	-I/usr/local/src/PHP_5_4/include -I/usr/local/src/PHP_5_4/main
	-I/usr/local/src/PHP_5_4 -I/usr/local/src/PHP_5_4/ext/date/lib
	-I/usr/local/src/PHP_5_4/ext/ereg/regex -I/usr/include/libxml2
	-I/usr/local/ssl/include -I/usr/include/freetype2
	-I/usr/include/imap -I/usr/local/include
	-I/usr/local/src/PHP_5_4/ext/mbstring/oniguruma
	-I/usr/local/src/PHP_5_4/ext/mbstring/libmbfl
	-I/usr/local/src/PHP_5_4/ext/mbstring/libmbfl/mbfl
	-I/usr/include/pspell -I/usr/include/tidy
	-I/usr/local/src/PHP_5_4/TSRM -I/usr/local/src/PHP_5_4/Zend   
	-I/usr/include -O3 -mtune=generic -march=native -fPIC -DPIC
	-D_GNU_SOURCE -fno-strict-aliasing -fvisibility=hidden   -o
	ext/xmlwriter/xmlwriter.la -export-dynamic -avoid-version
	-prefer-pic -module -rpath /usr/local/src/PHP_5_4/modules
	-avoid-version -module ext/xmlwriter/php_xmlwriter.lo -lxml2 -lz
	-lm
	grep: /usr/lib/libxcb.la: No such file or directory
	/bin/sed: can't read /usr/lib/libxcb.la: No such file or
	directory
	libtool: link: `/usr/lib/libxcb.la' is not a valid libtool
	archive
	make: *** [ext/gd/gd.la] Error 1
	...

i have no clue why libcxb is involved at all, here.  chat in irc @ #xcb
suggests that libtool or php source is somehow broken.

any ideas here?  i'm stumped.  if there's a pkg missing, i've not
identified it yet -- since i've no clue what the issue is, i've held off
randomly dumping info in this message, and will happily provide what's
asked for.

locuse