Description:
------------
If PHP 4.3.3 is compiled with --oci8 switch against Oracle 9.0.1, when Apache 2.0.47 attempts to load the module it fails as per below:

Starting httpd: Syntax error on line 57 of /usr/local/apache2/conf/httpd.conf:
Cannot load /usr/local/apache2/modules/libphp4.so into server: /usr/local/oracle/product/9.0.1/lib/libclntsh.so.9.0: undefined symbol: __cmpdi2

=== Why Use Oracle Client 9.0.1?

In order to connect to legacy Oracle 7.2/7.3 instances. Versions of Oracle after this do not support these databases.

=== Building PHP

glibc has to be downgraded in order to compile PHP 4.3.3 successfully. Compile failure:

CONFIGURE:   './configure' '--with-mysql=/usr/local/mysql' '--with-apxs2=/usr/local/apache2/bin/apxs' '--with-openssl=/usr/local/ssl' '--with-oci8' '--enable-sigchild'
CC:         gcc
CFLAGS:     -g -O2
CPPFLAGS:
CXX:
CXXFLAGS:
INCLUDES:    -I$(top_builddir)/Zend -I/usr/local/ssl/include -I/usr/local/mysql/include -I/usr/local/oracle/product/9.0.1/rdbms/public -I/usr/local/oracle/product/9.0.1/rdbms/demo -I/usr/local/oracle/product/9.0.1/plsql/public
LDFLAGS:     -Wl,-rpath,/usr/local/ssl/lib -L/usr/local/ssl/lib -Wl,-rpath,/usr/local/mysql/lib -L/usr/local/mysql/lib -Wl,-rpath,/usr/local/oracle/product/9.0.1/lib -L/usr/local/oracle/product/9.0.1/lib
LIBS:       -lmysqlclient -lz -lssl -lcrypto -lresolv -lm -ldl -lnsl  -ldl -lm -lclntsh
DLIBS:
SAPI:       apache2handler
PHP_RPATHS:  /usr/local/ssl/lib /usr/local/mysql/lib /usr/local/oracle/product/9.0.1/lib
uname -a:   Linux staging.int.inpho.com.au 2.4.20-19.9 #1 Tue Jul 15 17:18:13 EDT 2003 i686 i686 i386 GNU/Linux

gcc -o conftest -g -O2   -Wl,-rpath,/usr/local/ssl/lib -L/usr/local/ssl/lib -Wl,-rpath,/usr/local/mysql/lib -L/usr/local/mysql/lib -Wl,-rpath,/usr/local/oracle/product/9.0.1/lib -L/usr/local/oracle/product/9.0.1/lib conftest.c -lmysqlclient -lz -lssl -lcrypto -lresolv -lm -ldl -lnsl  -ldl -lm -lclntsh 1>&5
/usr/local/oracle/product/9.0.1/lib/libclntsh.so: undefined reference to `__ctype_b'
/usr/local/oracle/product/9.0.1/lib/libclntsh.so: undefined reference to `__ctype_toupper'
/usr/local/oracle/product/9.0.1/lib/libclntsh.so: undefined reference to `__ctype_tolower'
collect2: ld returned 1 exit status

=== Downgrading glibc

As per instructions here:

http://www.puschitz.com/InstallingOracle9i.shtml

rpm -Uvh --force glibc-2.3.2-5.i686.rpm glibc-common-2.3.2-5.i386.rpm glibc-devel-2.3.2-5.i386.rpm 

configure/make now succeeds.

=== Installation of PHP 4.3.3

Installing PHP CLI binary:        /usr/local/bin/
Installing PHP CLI man page:      /usr/local/man/man1/
Installing PHP SAPI module:       apache2handler
/usr/local/apache2/build/instdso.sh SH_LIBTOOL='/usr/local/apache2/build/libtool' libphp4.la /usr/local/apache2/modules
/usr/local/apache2/build/libtool --mode=install cp libphp4.la /usr/local/apache2/modules/
cp .libs/libphp4.so /usr/local/apache2/modules/libphp4.so
cp .libs/libphp4.lai /usr/local/apache2/modules/libphp4.la
libtool: install: warning: remember to run `libtool --finish /home/distrib/software/php-4.3.3/libs'
chmod 755 /usr/local/apache2/modules/libphp4.so
[activating module `php4' in /usr/local/apache2/conf/httpd.conf]
Installing shared extensions:     /usr/local/lib/php/extensions/no-debug-non-zts-20020429/
Installing PEAR environment:      /usr/local/lib/php/
[PEAR] Archive_Tar    - already installed: 1.1
[PEAR] Console_Getopt - already installed: 1.0
[PEAR] PEAR           - already installed: 1.2.1
Wrote PEAR system config file at: /usr/local/etc/pear.conf
You may want to add: /usr/local/lib/php to your php.ini include_path
[PEAR] DB             - already installed: 1.5.0RC1
[PEAR] HTTP           - already installed: 1.2.1
[PEAR] Mail           - already installed: 1.1.1
[PEAR] Net_SMTP       - already installed: 1.2.3
[PEAR] Net_Socket     - already installed: 1.0.1
[PEAR] XML_Parser     - already installed: 1.0.1
[PEAR] XML_RPC        - already installed: 1.0.4
Installing build environment:     /usr/local/lib/php/build/
Installing header files:          /usr/local/include/php/
Installing helper programs:       /usr/local/bin/
  program: phpize
  program: php-config
  program: phpextdist

=== Starting Apache 2.0.47

Starting httpd: Syntax error on line 57 of /usr/local/apache2/conf/httpd.conf:
Cannot load /usr/local/apache2/modules/libphp4.so into server: /usr/local/oracle/product/9.0.1/lib/libclntsh.so.9.0: undefined symbol: __cmpdi2

=== ldd libphp4.so

ldd libphp4.so
        libcrypt.so.1 => /lib/libcrypt.so.1 (0x40251000)
        libz.so.1 => /usr/lib/libz.so.1 (0x4027e000)
        libresolv.so.2 => /lib/libresolv.so.2 (0x4028d000)
        libm.so.6 => /lib/i686/libm.so.6 (0x4029f000)
        libdl.so.2 => /lib/libdl.so.2 (0x402c1000)
        libnsl.so.1 => /lib/libnsl.so.1 (0x402c5000)
        libclntsh.so.9.0 => /usr/local/oracle/product/9.0.1/lib/libclntsh.so.9.0 (0x402da000)
        libc.so.6 => /lib/i686/libc.so.6 (0x40a31000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x80000000)
        libwtc9.so => /usr/local/oracle/product/9.0.1/lib/libwtc9.so (0x40b6a000)
        libpthread.so.0 => /lib/i686/libpthread.so.0 (0x40b6d000)

=== Other Notes

I also tried with the --enable-libgcc to no avail