cant compile pdflib 2.01 with php4b3

my errormessage is: checking whether to include Pdflib 2.x support... yes yes checking for PDF_close in -lpdf... no configure: error: pdflib extension requires pdflib 2.x. You may as well need libtiff and libjpeg. In such a case use the options --with-tiff-dir=<DIR> and --with-jpeg-dir=<DIR> but the tifflib and jpeglib is installed, and i use those params with the configure. what i did: in pdf-home-dir: configure make make install ln -s /usr/local/lib/libpdf2.01.so /usr/local/lib/libpdf.so in the php-home-dir: ./configure --with-mysql --with-apache=../apache_1.3.9 --enable-track-vars - -with-imap --with-msql --enable-trans-sid --with-gd --with-ftp --with-xml -- with-mcrypt --with-mhash --with-YP --with-pdf --disable-debug --with-pdflib --with-zlib-dir --with-jpeg-dir --with-tiff-dir --with-zlib then i get the errormessage from above(without --with-pdf it is working perfectly). what am i doing wrong? is there a patch known somewhere? Thanks very much, Gernot