问在mac上安装pdf2image和pdf2json

EN

~/Downloads/pdf2image-0.51 Tue Jan 03 12:36:04>make
cd goo; make
make[1]: Nothing to be done for `all'.
cd fofi; make
make[1]: Nothing to be done for `all'.
cd splash; make
make[1]: Nothing to be done for `all'.
cd xpdf; make
g++ -I/opt/local/include/freetype2 -I/opt/local -I/Users/Tagent1/freetype.win32/include/ -I/opt/local/lib/ -DHAVE_CONFIG_H -I.. -I./../goo -I./../fofi -I./../splash -I.            -o pdftops Annot.o Array.o BuiltinFont.o BuiltinFontTables.o Catalog.o CharCodeToUnicode.o CMap.o Decrypt.o Dict.o Error.o FontEncodingTables.o Function.o Gfx.o GfxFont.o GfxState.o GlobalParams.o JArithmeticDecoder.o JBIG2Stream.o JPXStream.o Lexer.o Link.o NameToCharCode.o Outline.o Object.o OutputDev.o Page.o Parser.o PDFDoc.o PDFDocEncoding.o PreScanOutputDev.o PSOutputDev.o PSTokenizer.o SecurityHandler.o SplashOutputDev.o Stream.o UnicodeMap.o XpdfPluginAPI.o XRef.o pdftops.o \
        -L../goo -lGoo -L../splash -lsplash -lfreetype -lGoo -L../fofi -lfofi -L../goo -lGoo -lm
ld: library not found for -lfreetype
collect2: ld returned 1 exit status
make[1]: *** [pdftops] Error 1
make: *** [all] Error 2

~/Downloads/pdf2json-0.50-source Tue Jan 03 12:31:30>make
cd goo; make
make[1]: Nothing to be done for `all'.
cd fofi; make
make[1]: Nothing to be done for `all'.
cd splash; make
make[1]: Nothing to be done for `all'.
cd xpdf; make
make[1]: Nothing to be done for `all'.
cd src; make 
make[1]: Nothing to be done for `all'.