Fails ruby-ldap on ubuntu 10.04

Hi,
I tried to install ruby-ldap 0.9.9 on ubuntu 10.04 with ruby 1.8.7.
but i get the error. can anyone help me out?

Building native extensions. This could take a while…
ERROR: Error installing ruby-ldap:
ERROR: Failed to build gem native extension.

/usr/bin/ruby1.8 extconf.rb
–with-openldap2
checking for ldap.h… no
checking for lber.h… no
checking for ldap_ssl.h… no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.

Provided configuration options:
–with-opt-dir
–without-opt-dir
–with-opt-include
–without-opt-include=${opt-dir}/include
–with-opt-lib
–without-opt-lib=${opt-dir}/lib
–with-make-prog
–without-make-prog
–srcdir=.
–curdir
–ruby=/usr/bin/ruby1.8
–with-netscape
–without-netscape
–without-netscape
–with-openldap1
–without-openldap1
–without-openldap1
–with-openldap2
–without-openldap2
–without-openldap2
–with-wldap32
–without-wldap32
–without-wldap32
–with-ldap-dir
–without-ldap-dir
–with-ldap-include
–without-ldap-include=${ldap-dir}/include
–with-ldap-lib
–without-ldap-lib=${ldap-dir}/lib
–with-ldap-dir
–without-ldap-dir
–without-ldap-dir
–with-ldap
–without-ldap
–without-ldap
–with-libresolv
–without-libresolv
–without-libresolv
–with-libcrypto
–without-libcrypto
–without-libcrypto
–with-libssl
–without-libssl
–without-libssl
–with-libpthread
–without-libpthread
–without-libpthread
–with-libnsl
–without-libnsl
–without-libnsl
–with-liblber
–without-liblber
–without-liblber
–with-libldap_r
–without-libldap_r
–without-libldap_r
–with-libldap
–without-libldap
–without-libldap
can’t find ldap.h and lber.h
use the option ‘–with-ldap-dir’!

Gem files will remain installed in
/usr/lib/ruby/gems/1.8/gems/ruby-ldap-0.9.9 for inspection.
Results logged to
/usr/lib/ruby/gems/1.8/gems/ruby-ldap-0.9.9/gem_make.out

Hi,

I had the same error. The ruby-ldap gem required a library called
libldap2-dev to work.
Try sudo apt-get install libldap2-dev and then try installing the gem
again.

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