When calling ..

./configure --prefix=/usr/local/apache-php --with-apache=../apache_php --with-mod_charset --with-imap=/usr --with-ftp --with-gd=/usr/local --with-ttf=/usr/local --enable-t1lib --with-imagick=/usr --with-oracle --with-mysql=/usr --with-ldap=/usr --with-xml --with-yp --with-zlib=/usr/local --with-pdflib=/usr/local --with-jpeg-dir=/usr/lib --with-tiff-dir=/usr/lib --with-dbase --with-config-file-path=/usr/local/php --enable-safe-mode --enable-track-vars --enable-magic-quotes --enable-memory-limit --with-gdbm --with-ndbm --with-db2 --with-dbm --with-mcrypt=/usr/local --with-mhash=/usr/local --enable-sysvsem --enable-sysvshm --enable-dmalloc --with-zlib-dir=/usr/local/lib


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checking for XML support... yes
checking whether to include YP support... yes
checking whether to include zlib support... yes
checking for gzgets in -lz... yes
checking whether to include pdflib support... yes
./configure: test: -L/usr/local/lib: binary operator expected
checking for libz needed by pdflib 2.0... already zlib support
checking for libjpeg (needed by pdflib 2.0)... yes
checking for jpeg_read_header in -ljpeg... (cached) yes
checking for libtiff (needed by pdflib 2.0)... yes
checking for TIFFOpen in -ltiff... (cached) yes
checking for PDF_new in -lpdf... no
configure: error: Check if zlib libjpeg and libtiff has been found.  If not specify --with-zlib-dir=<DIR> --with-jpeg-dir=<DIR> and --with-tiff-dir=<DIR>.

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It seems there's a trouble with the PDFlib - I'm using 3.0 and zlib 1.1.3 (it is present)