gtk+ configure can't find cairo-pdf

[rahed <raherh gmail com>]

Hello,

I build gtk+-2.11.2 with MinGW and MSYS on windows. Last lines of
configure output read as follows:

________________
checking cairo-pdf.h usability... no
checking cairo-pdf.h presence... no
checking for cairo-pdf.h... no
configure: error:
*** Can't find cairo-pdf.h. You must build Cairo with the pdf
*** backend enabled.
_________________


I built Cairo with --enable-pdf and cairo-pdf.pc has these lines:

_________________
prefix=/c/gtksource
exec_prefix=/c/gtksource
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: cairo-pdf
Description: PDF backend for cairo graphics library
Version: 1.4.6

Requires: cairo 
Libs: -lz 
Cflags: -I${includedir}/cairo 
_________________


The cairo-pdf.h file is indeed in /c/gtksource/include/cairo.

Does anyone see what's wrong?
Thanks.

-- 
Radek