cd to worksrcpath

grep -rE ".*#include.*?ft.*?[.]h.*" ./



freetype
./poppler/CairoFontEngine.h:#include <cairo-ft.h>          (**)
./poppler/CairoOutputDev.h:#include <cairo-ft.h>           (**)
./splash/SplashFTFont.cc:#include <ft2build.h>
./splash/SplashFTFont.h:#include <ft2build.h>
./splash/SplashFTFontEngine.h:#include <ft2build.h>
./splash/SplashFTFontFile.h:#include <ft2build.h>


fontconfig
./poppler/GlobalParams.h:#include <fontconfig/fontconfig.h>
./poppler/CairoFontEngine.h:#include <cairo-ft.h>          (**)
./poppler/CairoOutputDev.h:#include <cairo-ft.h>           (**)


expat
(no inclusion)


libiconv
(no inclusion)





(**)    file <cairo-ft.h> contains:
            #include <fontconfig/fontconfig.h>
            #include <ft2build.h>