linux 启动apache libltdl.so.3: cannot open shared object file: No such file or directory异常

启动

[root@localhost ZendOptimizer-3.3.0-linux-glibc21-i386]# /opt/local/apache2/bin/apachectl stop

httpd: Syntax error on line 64 of /opt/local/apache2/conf/httpd.conf: Cannot load /opt/local/apache2/modules/libphp5.so into server: libltdl.so.3: cannot open shared object file: No such file or directory

[root@localhost ZendOptimizer-3.3.0-linux-glibc21-i386]# find / -name libltdl*

/usr/local/lib/libltdl.so

/usr/local/lib/libltdl.so.3

/usr/local/lib/libltdl.a

/usr/local/lib/libltdl.la

/usr/local/lib/libltdl.so.3.1.0

/opt/soft/libmcrypt-2.5.8/libltdl

/opt/soft/libmcrypt-2.5.8/libltdl/.libs/libltdl.so

/opt/soft/libmcrypt-2.5.8/libltdl/.libs/libltdl.lai

/opt/soft/libmcrypt-2.5.8/libltdl/.libs/libltdl.so.3

/opt/soft/libmcrypt-2.5.8/libltdl/.libs/libltdl.a

/opt/soft/libmcrypt-2.5.8/libltdl/.libs/libltdl.la

/opt/soft/libmcrypt-2.5.8/libltdl/.libs/libltdl.so.3.1.0

/opt/soft/libmcrypt-2.5.8/libltdl/libltdl.la

[root@localhost ZendOptimizer-3.3.0-linux-glibc21-i386]# ldd /opt/local/apache2/modules/libphp5.so

linux-gate.so.1 => (0x00dfd000)

libcrypt.so.1 => /lib/libcrypt.so.1 (0x00110000)

librt.so.1 => /lib/i686/nosegneg/librt.so.1 (0x00142000)

libmysqlclient.so.15 => /opt/local/mysql/lib/libmysqlclient.so.15 (0x00a7d000)

libmcrypt.so.4 => /opt/local/libmcrypt/lib/libmcrypt.so.4 (0x0014b000)

libltdl.so.3 => not found

libgd.so.2 => /opt/local/gd2/lib/libgd.so.2 (0x001bb000)

libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x00c66000)

libpng12.so.0 => /usr/lib/libpng12.so.0 (0x0020b000)

libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x0017a000)

libcurl.so.3 => /usr/lib/libcurl.so.3 (0x00eb9000)

libbz2.so.1 => /usr/lib/libbz2.so.1 (0x00231000)

libresolv.so.2 => /lib/libresolv.so.2 (0x00242000)

libm.so.6 => /lib/i686/nosegneg/libm.so.6 (0x00ce6000)

libdl.so.2 => /lib/libdl.so.2 (0x00255000)

libnsl.so.1 => /lib/libnsl.so.1 (0x00d68000)

libgssapi_krb5.so.2 => /usr/lib/libgssapi_krb5.so.2 (0x00d0d000)

libkrb5.so.3 => /usr/lib/libkrb5.so.3 (0x00dfe000)

libk5crypto.so.3 => /usr/lib/libk5crypto.so.3 (0x00d3b000)

libcom_err.so.2 => /lib/libcom_err.so.2 (0x0019c000)

libidn.so.11 => /usr/lib/libidn.so.11 (0x00d7f000)

libxml2.so.2 => /opt/local/libxml2/lib/libxml2.so.2 (0x00ef5000)

libc.so.6 => /lib/i686/nosegneg/libc.so.6 (0x05a1e000)

libpthread.so.0 => /lib/i686/nosegneg/libpthread.so.0 (0x00259000)

/lib/ld-linux.so.2 (0x0019f000)

libz.so.1 => /usr/lib/libz.so.1 (0x00db0000)

libssl.so.6 => /lib/libssl.so.6 (0x069e5000)

libcrypto.so.6 => /lib/libcrypto.so.6 (0x06f3c000)

libkrb5support.so.0 => /usr/lib/libkrb5support.so.0 (0x00dc3000)

libkeyutils.so.1 => /lib/libkeyutils.so.1 (0x00271000)

libselinux.so.1 => /lib/libselinux.so.1 (0x00dcc000)

libsepol.so.1 => /lib/libsepol.so.1 (0x03f26000)

执行[root@localhost ~]# ln -s /usr/local/lib/libltdl.so.3 /usr/lib/libltdl.so.3 即可