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Old 10-30-2007, 12:41 PM   #1
Registered: Mar 2005
Location: India
Distribution: RHEL 3/4, Solaris 8/9/10, Fedora 4/8, Redhat Linux 9
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plesk + php 4.3.2 upgrade error - "undefined symbol: ap_signal"

Hello all,

My current Configuration :
Redhat 9
Plesk 7.5.2
Apache 2.0
php 4.3.2
mysql 3.23.58

Due to absence of some functionality, I need to upgrade php4.3.2 to php 4.4.7.

1. Downloaded php-4.4.7.tar.gz from
2. ./configure --with-apxs=/usr/local/psa/admin/bin/apxs --with-mysql
3. make
4. make install
5. Overwrite following files :

Questions :
1. While starting Apache I am getting following error :
undefined symbol: ap_signal
And Apache is not able to start.

2. My Apache version is 2.0. But while running configure script with --with-apxs2=/usr/local/psa/admin/bin/apxs, it gives error that my apache version is 1.3 so please complile using --with-apxs.
Why My APXS binary is giving wrong apache version ?

Notes :

1. I have checked path of loadble httpd modules.
2. httpd -v shows apache version 2
3. php -v shows php version 4.4.7 after overwriting files
4. Please remember I am using plesk.
5. Output of ldd
[root@u15166250 php-4.4.7]# ldd -r /usr/local/psa/admin/libexec/ => /lib/ (0x40180000) => /usr/lib/ (0x401ae000) => /lib/ (0x401bc000) => /lib/i686/ (0x401ce000) => /lib/ (0x401f0000) => /lib/ (0x401f4000) => /lib/i686/ (0x40209000)
/lib/ => /lib/ (0x80000000)
undefined symbol: ap_rwrite (/usr/local/psa/admin/libexec/
undefined symbol: ap_rflush (/usr/local/psa/admin/libexec/
undefined symbol: ap_should_client_block (/usr/local/psa/admin/libexec/
undefined symbol: ap_signal (/usr/local/psa/admin/libexec/
undefined symbol: ap_hard_timeout (/usr/local/psa/admin/libexec/
undefined symbol: ap_get_client_block (/usr/local/psa/admin/libexec/
undefined symbol: ap_reset_timeout (/usr/local/psa/admin/libexec/

and lot more undefined symbols.

Please help me to resolve the issue.
Thanks in advance.


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