Hi there,

I feel like I might be missing something obvious here; apologies in advance if that's the case :)

This is for PHP 5.3.3, on CentOS 6.2, output of uname -a is:

Linux tomdev 2.6.32-220.el6.x86_64 #1 SMP Tue Dec 6 19:48:22 GMT 2011 x86_64 x86_64 x86_64 GNU/Linux

Everything compiles fine, but when trying to use the module - either configuring it in php.ini or via make test - I get an error: undefined symbol, shm_open.

Any ideas where I could be going wrong? I've included a few more bits of debugging below:

Thanks!,
Tom.

Not sure if these lines are relevant from configure:

checking for mmap() using MAP_ANON shared memory support... yes
checking for mmap() using /dev/zero shared memory support... yes
checking for mmap() using shm_open() shared memory support... no
checking for mmap() using regular file shared memory support... yes

Here's the full output from make test:

Warning: PHP Startup: Unable to load dynamic library '/tmp/zop/3/ZendOptimizerPlus/modules/ZendOptimizerPlus.so' - /tmp/zop/3/ZendOptimizerPlus/modules/ZendOptimizerPlus.so: undefined symbol: shm_open in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library '/tmp/zop/3/ZendOptimizerPlus/modules/ZendOptimizerPlus.so' - /tmp/zop/3/ZendOptimizerPlus/modules/ZendOptimizerPlus.so: undefined symbol: shm_open in Unknown on line 0

PHP : /usr/bin/php
PHP_SAPI : cli
PHP_VERSION : 5.3.3
ZEND_VERSION: 2.3.0
PHP_OS : Linux - Linux tomdev 2.6.32-220.el6.x86_64 #1 SMP Tue Dec 6 19:48:22 GMT 2011 x86_64
INI actual : /tmp/zop/3/ZendOptimizerPlus/tmp-php.ini
More .INIs :
CWD : /tmp/zop/3/ZendOptimizerPlus
Extra dirs :

VALGRIND : Not used

TIME START 2013-02-13 18:28:17

No tests were run.

Output of php -i | grep configure:

Configure Command => './configure' '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' '--target=x86_64-redhat-linux-gnu' '--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64' '--libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/var/lib' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--cache-file=../config.cache' '--with-libdir=lib64' '--with-config-file-path=/etc' '--with-config-file-scan-dir=/etc/php.d' '--disable-debug' '--with-pic' '--disable-rpath' '--without-pear' '--with-bz2' '--with-exec-dir=/usr/bin' '--with-freetype-dir=/usr' '--with-png-dir=/usr' '--with-xpm-dir=/usr' '--enable-gd-native-ttf' '--without-gdbm' '--with-gettext' '--with-gmp' '--with-iconv' '--with-jpeg-dir=/usr' '--with-openssl' '--with-pcre-regex=/usr' '--with-zlib' '--with-layout=GNU' '--enable-exif' '--enable-ftp' '--enable-magic-quotes' '--enable-sockets' '--enable-sysvsem' '--enable-sysvshm' '--enable-sysvmsg' '--with-kerberos' '--enable-ucd-snmp-hack' '--enable-shmop' '--enable-calendar' '--without-sqlite' '--with-libxml-dir=/usr' '--enable-xml' '--with-system-tzdata' '--enable-force-cgi-redirect' '--enable-pcntl' '--with-imap=shared' '--with-imap-ssl' '--enable-mbstring=shared' '--enable-mbregex' '--with-gd=shared' '--enable-bcmath=shared' '--enable-dba=shared' '--with-db4=/usr' '--with-xmlrpc=shared' '--with-ldap=shared' '--with-ldap-sasl' '--with-mysql=shared,/usr' '--with-mysqli=shared,/usr/lib64/mysql/mysql_config' '--enable-dom=shared' '--with-pgsql=shared' '--enable-wddx=shared' '--with-snmp=shared,/usr' '--enable-soap=shared' '--with-xsl=shared,/usr' '--enable-xmlreader=shared' '--enable-xmlwriter=shared' '--with-curl=shared,/usr' '--enable-fastcgi' '--enable-pdo=shared' '--with-pdo-odbc=shared,unixODBC,/usr' '--with-pdo-mysql=shared,/usr/lib64/mysql/mysql_config' '--with-pdo-pgsql=shared,/usr' '--with-pdo-sqlite=shared,/usr' '--with-sqlite3=shared,/usr' '--enable-json=shared' '--enable-zip=shared' '--without-readline' '--with-libedit' '--with-pspell=shared' '--enable-phar=shared' '--with-tidy=shared,/usr' '--enable-sysvmsg=shared' '--enable-sysvshm=shared' '--enable-sysvsem=shared' '--enable-posix=shared' '--with-unixODBC=shared,/usr' '--enable-fileinfo=shared' '--enable-intl=shared' '--with-icu-dir=/usr' '--with-enchant=shared,/usr' '--with-recode=shared,/usr'