Yesterday evening, a friend of mine had some issues with installing DBD::mysql, and asked if I had encountered the same issue. The problem, as the output from "make test" showed, was that certain symbols was missing:# Tried to use 'DBD::mysql'.# Error: Can't load '/Users/westerlund/src/perl/DBD-mysql-4.008/blib/arch/auto/DBD/mysql/mysql.bundle' for module DBD::mysql: dlopen(/Users/westerlund/src/perl/DBD-mysql-4.008/blib/arch/auto/DBD/mysql/mysql.bundle, 2): Symbol not found: _is_prefixFair enough, this is related to a 64-bit issue with MySQL---at least with my Perl version, which is now: Summary of my perl5 (revision 5 version 10 subversion 0) configuration: Platform: osname=darwin, osvers=9.5.0, archname=darwin-thread-multi-64int-2levelIf you try to link to a x86_64 version of MySQL, then you get the above mentioned error. So, I downloaded an x86 version of MySQL and tried again. The output from "perl Makefile.PL": cflags (mysql_config) = -I/Users/westerlund/src/perl/mysql-5.1.28-rc-osx10.5-x86/include -g -Os -arch i386 -fno-common -D_P1003_1B_VISIBLE -DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -DIGNORE_SIGHUP_SIGQUIT -DDONT_DECLARE_CXA_PURE_VIRTUAL embedded (mysql_config) = libs (mysql_config) = -L/Users/westerlund/src/perl/mysql-5.1.28-rc-osx10.5-x86/lib -lmysqlclient -lz -lm -lmygcc mysql_config (Users choice) = /Users/westerlund/src/perl/mysql-5.1.28-rc-osx10.5-x86/bin/mysql_configThat looks all good and nice, the right paths, versions and everything. So I compiled it OK, but when running "make test" again: