Passenger失敗安裝「RAKE APACHE2」給libldap_r-2.4.so.2：「未定義的引用sasl _...」

我在EC2上安裝了Passenger 3.0.7（也發生在3.0.6）。Passenger失敗安裝「RAKE APACHE2」給libldap_r-2.4.so.2：「未定義的引用sasl _...」

我無法安裝它。當我運行：RAKE APACHE2

我得到的錯誤： /usr/lib/libldap_r-2.4.so.2：未定義的引用`sasl_global_listmech @ SASL2'

有誰知道爲什麼嗎？或者如何解決它？

creating libev.la 
(cd .libs && rm -f libev.la && ln -s ../libev.la libev.la) 
g++ ext/common/LoggingAgent/Main.cpp -o agents/PassengerLoggingAgent -Iext -Iext/common -Iext/libe -I/bitnami/rubystackDev-linux/output/common/include -DHAS_CURL_EASY_RESET -D_REENTRANT -I/usr/loal/include -DHASH_NAMESPACE="__gnu_cxx" -DHASH_NAMESPACE="__gnu_cxx" -DHASH_FUN_H="<hash_fun.h>" -HAS_SFENCE -DHAS_LFENCE -Wall -g -DPASSENGER_DEBUG -DBOOST_DISABLE_ASSERTS ext/common/libpassengercommon.a ext/common/libboost_oxt.a ext/libev/.libs/libev.a -L/bitnami/rubystackDev-linux/output/comon/lib -lcurl -L/bitnami/rubystackDev-linux/output/common/lib -L/bitnami/rubystackDev-linux/outpu/common/lib -lz -lpthread -rdynamic 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
/usr/lib/libldap_r-2.4.so.2: undefined reference to `[email protected]' 
collect2: ld returned 1 exit status 
rake aborted! 
Command failed with status (1): [g++ ext/common/LoggingAgent/Main.cpp -o ag...]