PHPはzend拡張機能（ioncube）を見つけることができません。

私が所有しているサーバーに問題なくインストールしましたphp-5.6.7-1。をioncube入れて追加しました。ioncube_loader_lin_5.6.so/usr/lib/php5/20131226zend_extension = ioncube_loader_lin_5.6.sophp.ini

しかし、他のサーバーでは機能しません。私はすでに到着しましたphp-5.4.4-14+deb7u4。ioncube_loader_lin_5.4.soを入れて/usr/lib/php5/20100525追加zend_extension = ioncube_loader_lin_5.4.soしましたphp.ini。

$ php -i | grep extension_dir
extension_dir => /usr/lib/php5/20100525 => /usr/lib/php5/20100525
$ php --version
Failed loading ioncube_loader_lin_5.4.so:  ioncube_loader_lin_5.4.so: cannot open shared object file: No such file or directory
PHP 5.4.4-14+deb7u4 (cli) (built: Aug 23 2013 14:37:41) 
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies

今、面白い部分に進みます。

$ strace php --version
...
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/tls/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64-linux-gnu/tls/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/tls/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64-linux-gnu/tls", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64-linux-gnu/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/usr/lib/x86_64-linux-gnu/tls/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/x86_64-linux-gnu/tls/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/usr/lib/x86_64-linux-gnu/tls/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/x86_64-linux-gnu/tls", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/usr/lib/x86_64-linux-gnu/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/x86_64-linux-gnu/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/usr/lib/x86_64-linux-gnu/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=20480, ...}) = 0
open("/lib/tls/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/tls/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/lib/tls/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/tls", 0x7fff2cc8cf60)        = -1 ENOENT (No such file or directory)
open("/lib/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64", 0x7fff2cc8cf60)     = -1 ENOENT (No such file or directory)
open("/lib/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/usr/lib/tls/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/tls/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/usr/lib/tls/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/tls", 0x7fff2cc8cf60)    = -1 ENOENT (No such file or directory)
open("/usr/lib/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/usr/lib/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
munmap(0x7f1f3e188000, 37265)           = 0
write(2, "Failed loading ioncube_loader_li"..., 128Failed loading ioncube_loader_lin_5.4.so:  ioncube_loader_lin_5.4.so: cannot open shared object file: No such file or directory
) = 128
open("/usr/lib/php5/20100525/mysqlnd.so", O_RDONLY) = 6
...

明らかに、最初のサーバーからphpライブラリをロードするのに問題はありません。

$ strace php --version
...
futex(0x7fbf391860c8, FUTEX_WAKE_PRIVATE, 2147483647) = 0
open("/usr/lib/php5/20131226/ioncube_loader_lin_5.6.so", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220o\2\0\0\0\0\0"..., 832) = 832
...

configureこれは内部でzend拡張を検索できないようにするいくつかのオプションに関連していますか/usr/lib/php5/20100525？見つける方法はありますか？私は何から作られましたか？