无法在Snow Leo上安装ruby-ldap

Question

我尝试在Snow Leo上安装ruby-ldap，但失败了：

~/WorkingFolder/temp/test$ sudo gem install ruby-ldap
Password:
Building native extensions.  This could take a while...
ERROR:  Error installing ruby-ldap:
    ERROR: Failed to build gem native extension.

/opt/local/bin/ruby 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=/opt/local/bin/ruby
    --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 /opt/local/lib/ruby/gems/1.8/gems/ruby-ldap-0.9.11 for inspection.
Results logged to /opt/local/lib/ruby/gems/1.8/gems/ruby-ldap-0.9.11/gem_make.out

谁知道怎么解决这个问题，请帮帮忙！！

谢谢

Answer 1

LDAP开发头在您的系统上不可用，ruby-ldap需要这些头。安装苹果的开发工具(XCode)也应该安装这些开发头文件。您可以安装开发人员工具并重新尝试安装ruby-ldap吗？