I have a PHP extension written in C++ which I use for parsing and
building WbXml documents. I have tested building and using it on a 32
bit x86 system running the following:
PHP 4.3.10
GCC 3.3.5
Gentoo Linux 2.6.10-r4
Everything works fine on this configuration. I do however need the
extension to run on a x86 64 bits machine using the following configuration:
PHP 4.4.0
GCC 3.2.3
RedHat Enterprise Linux 3 2.4.21-15
Everything compiles fine, no errors. When PHP tries to load the module
however, I get the following error:
PHP Warning: Unknown(): Unable to load dynamic library
'/usr/local/php4/extensions/php_wbxml.so' -
/usr/local/php4/extensions/php_wbxml.so: undefined symbol:
__gxx_personality_v0 in Unknown on line 0
The name of the module is, obviously, php_wbxml.so. What does this error
mean? I have tried to explicitly link against libsupc++ (which, from
what I can gather, should include the __gxx_personality_v0 symbol) but
the same error remains.
I have moved other modules without problems between the two systems but
this one doesn't seem to work.
Here's the config.m4 I am using:
PHP_ARG_ENABLE(php_wbxml, whether to enable WbXml support,
[--enable-php_wbxml Enable WbXml support])
if test "$PHP_PHP_WBXML" = "yes"; then
PHP_REQUIRE_CXX()
PHP_ADD_LIBRARY(stdc++, 1, PHP_WBXML_SHARED_LIBADD)
AC_DEFINE(HAVE_PHP_WBXML, 1, [whether you have WbXml])
PHP_NEW_EXTENSION(php_wbxml, php_wbxml.cpp TextXmlDocument.cpp
tinystr.cpp tinyxml.cpp tinyxmlerror.cpp tinyxmlparser.cpp
WbXmlDocument.cpp XmlAttribute.cpp XmlDocument.cpp XmlElement.cpp
XmlHandle.cpp XmlNode.cpp XmlText.cpp, $ext_shared)
fi
VERY grateful for any tips on how to proceed.
Best regards
David Olsson
