libXft won't compile: FC_HINT_STYLE undeclared

I'm trying to build libXft-2.1.3 but get the error

gcc -DHAVE_CONFIG_H -I. -I. -I. -I/usr/local/include 
-I/usr/local/include/freetype2 -I/usr/local/include -I/usr/local/include 
-I/usr/X11R6/include -g -O2 -MT xftdpy.lo -MD -MP -MF .deps/xftdpy.Tpo -c 
xftdpy.c  -fPIC -DPIC -o .libs/xftdpy.o
xftdpy.c: In function `_XftDefaultInit':
xftdpy.c:380: `FC_HINT_STYLE' undeclared (first use in this function)
xftdpy.c:380: (Each undeclared identifier is reported only once
xftdpy.c:380: for each function it appears in.)
xftdpy.c: In function `XftDefaultSubstitute':
xftdpy.c:478: `FC_HINT_STYLE' undeclared (first use in this function)
xftdpy.c:482: `FC_HINT_FULL' undeclared (first use in this function)
make[1]: *** [xftdpy.lo] Error 1
make[1]: Leaving directory `/root/src/gtk/libXft-2.1.3'
make: *** [all] Error 2

I have fontconfig-2.2.1 and freetype-2.1.5 installed. (freetype-2.1.5 instead 
of 2.1.7 to avoid all those "ft2build.h not included" errors when building 
fontconfig or anything else that uses freetype and has not been updated). I 
would assume FC_HINT_STYLE and FC_HINT_FULL should come from fontconfig 
headers, but I couldn't find them in any of the fontconfig headers, or any of 
the headers in /usr/local/include or /usr/include, for that matter. Is this a 
compatibility issue, or do I need to install something else.

/usr/local/include/fontconfig contains:

fcfreetype.h
fcprivate.h
fontconfig.h

The following have compiled and installed with no problems:

freetype-2.1.5
fontconfig-2.2.1
atk-1.5.4
glib-2.3.2
xrender-0.8.3

Thanks,

Peter Winton