Same bug on Redhat 9.0,
with custom compiled apache 1.3.33 and php 4.3.11 in /usr/local

Error message is :
PHP Warning:  Unknown(): Unable to load dynamic library '/usr/local/php/lib/php/extensions/no-debug-non-zts-20020429/apd.so' - /usr/local/php/lib/php/extensions/no-debug-non-zts-20020429/apd.so: undefined symbol: OnUpdateLong in Unknown on line 0
Syntax OK

Same thing's happening to me on OS X.  Tried the 0.9.2 release as well as 1.0.1, on both PHP4, then PHP5.  No luck.  0.9.2 compiled and installed under PHP5 but crashed httpd on startup.

PHP6 + OS X =  


gcc -I. -I/tmp/apd-1.0.1 -DPHP_ATOM_INC -I/tmp/apd-1.0.1/include -I/tmp/apd-1.0.1/main -I/tmp/apd-1.0.1 -I/usr/include/php -I/usr/include/php/main -I/usr/include/php/TSRM -I/usr/include/php/Zend -DHAVE_CONFIG_H -g -O2 -c /tmp/apd-1.0.1/php_apd.c  -fno-common -DPIC -o .libs/php_apd.o
/tmp/apd-1.0.1/php_apd.c: In function 'apd_get_active_function_name':
/tmp/apd-1.0.1/php_apd.c:305: error: used struct type value where scalar is required
/tmp/apd-1.0.1/php_apd.c:306: error: invalid type argument of 'unary *'
/tmp/apd-1.0.1/php_apd.c:312: error: 'struct <anonymous>' has no member named 'scope'
/tmp/apd-1.0.1/php_apd.c:313: error: 'struct <anonymous>' has no member named 'scope'
/tmp/apd-1.0.1/php_apd.c: At top level:
/tmp/apd-1.0.1/php_apd.c:470: error: 'OnUpdateLong' undeclared here (not in a function)
make: *** [php_apd.lo] Error 1

0.9.2 on OSX Panther Intel

I'm getting this response when starting apache.

dyld: NSLinkModule() error
dyld: Symbol not found: _OnUpdateInt
  Referenced from: /usr/lib/php/extensions/no-debug-non-zts-20020429/apd.so
  Expected in: flat namespace

Mac OS 10.5 on Intel
PEAR Version: 1.6.2
PHP Version: 5.2.4
Zend Engine Version: 2.2.0
Running on: Darwin Walden.local 9.1.0 Darwin Kernel Version 9.1.0: Wed Oct 31 17:46:22 PDT 2007; root:xnu-1228.0.2~1/RELEASE_I386 i386


dyld: NSLinkModule() error
dyld: Symbol not found: _OnUpdateLong
  Referenced from: /usr/lib/php/extensions/no-debug-non-zts-20060613/memcache.so
  Expected in: flat namespace

Trace/BPT trap

Just wanted to add that I get the following error when trying to start Apache with pecl_http:


dyld: NSLinkModule() error
dyld: Symbol not found: _OnUpdateInt
  Referenced from: /usr/local/php5/lib/php/extensions/no-debug-non-zts-20060613/http.so
  Expected in: flat namespace

I thought I might add that my OSX specs are much more modern that the previous OSX mentioned here, so this issue still hasn't been resolved at this date:

OSX 10.4.11
Apache/1.3.33 (Darwin) PHP/5.2.0

Cheers!

You see the undefined symbol error because you're trying to load PHP4 extension with PHP5.
OnUpdateInt is present only in PHP4, PHP5 uses OnUpdateLong instead.
When you compile extensions with PHP4 headers, they use OnUpdateInt, so loading them with PHP5 fails on this early stage.

APD hasn't had a release in 10 years, this means it's source code is way out of sync with modern PHP.

I'm going to mark this bug as suspended, the report can still be found if a maintainer for APD comes forward.

Sorry about the wait.