Here's how I installed php4.1.1 with mysql and imap support for apache 1.3.19. I hope it help you. I used: ./configure --with-apxs=/usr/local/apache/bin/apxs --with-mysql --with-imap --with-kerberos --with-imap-ssl and it worked fine but i got this error during make: /usr/bin/ld: cannot find -lgssapi_krb5 collect2: ld returned 1 exit status make[1]: *** [libphp4.la] Error 1 make[1]: Leaving directory `/root/tars/php-4.1.1' make: *** [all-recursive] Error 1 When exporting env vars (export LDFLAGS="-L/usr/kerberos/lib -lkrb5 -lgssapi_krb5 -lpam") i get: checking whether the C compiler (gcc -L/usr/kerberos/lib -lkrb5 -lgssapi_krb5 -lpam) works... no configure: error: installation or configuration problem: C compiler cannot create executables. Obviously, this didn't work, I simply installed krb5-devel and reinstalled without exporting the env var. This allowed me to compile successfully, but when I started apache I got Cannot load /usr/local/apache/libexec/libphp4.so into server: undefined symbol:pam_end I checked to make sure the libraries were linked properly: The cause for this was not having libpam_devel installed. Make sure that if you clear config.cache and run make clean after configure. Install krb5-devel Install libpam -devel ldconfig ./configure --with-apxs=/usr/local/apache/bin/apxs --with-mysql --with-imap --with-kerberos --with-imap-ssl make clean make make install if you come into any other errors, try installing the devel packages and recompiling don't forget to remove config.cache before each compile attempt.
