#42106 [Opn->Fbk]: Build fails due to duplicate symbols (missing externs)

From: Date: Thu, 26 Jul 2007 17:27:46 +0000
Subject: #42106 [Opn->Fbk]: Build fails due to duplicate symbols (missing externs)
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-115477@lists.php.net to get a copy of this message 
 ID:               42106
 Updated by:       jani@php.net
 Reported By:      chris at improbable dot org
-Status:           Open
+Status:           Feedback
 Bug Type:         Compile Failure
 Operating System: Mac OS X
 PHP Version:      5.2.3
 New Comment:

What compiler (and version) are you using?
Does this happen if you don't set the CFLAGS?


Previous Comments:
------------------------------------------------------------------------

[2007-07-26 00:18:03] chris at improbable dot org

5.2-latest fails in exactly the same fashion:

ld64-74.4 failed: duplicate symbol _php_bz2_filter_factory in 
ext/bz2/bz2_filter.o and ext/bz2/bz2.o

The fix is identical.

------------------------------------------------------------------------

[2007-07-25 21:30:55] chris at improbable dot org

Description:
------------
The build failed with a duplicate symbol error:

ld64-74.4 failed: duplicate symbol _php_bz2_filter_factory in 
ext/bz2/bz2_filter.o and ext/bz2/bz2.o 

This was solved by adding extern to the php_bz2_filter_factory 
declaration in ext/bz2/php_bz2.h

An identical problem happened with Zend/zend_ini_scanner.c with the 
yytext declaration on line 478 (there is an earlier declaration in the

same file which is already declared extern).





Reproduce code:
---------------
CFLAGS=-fast ./configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --disable-dependency-tracking
--with-apxs2=/usr/sbin/apxs --with-ldap=/usr --enable-cli
--with-zlib-dir=/usr --with-xml --enable-exif --enable-mbstring
--enable-mbregex --enable-sockets --with-curl=/usr
--with-config-file-path=/etc --sysconfdir=/private/etc
--with-mysql-sock=/tmp/mysql --with-mysql=shared,/usr/local/mysql
--with-mysqli=shared,which mysql_config --with-pdo-mysql=shared,`which
mysql_config` --with-openssl --with-xmlrpc --with-xsl=/usr
--with-pear=/Library/PHP --with-bz2 --enable-bcmath --disable-cgi
--enable-zip --enable-memory-limit --enable-pcntl --with-zlib=/usr
--with-zlib-dir=/usr --with-ldap --enable-memcache 




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