PHP 5.6 Mcrypt x64 and MIT Scheme not compatible?

I have PHP 5.6 PHP (cli) installed currently, on Mint 17.2 x64 (Cinnamon). If I try to install mit-scheme, I get:

sudo apt-get install mit-scheme Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: dbconfig-common libjs-codemirror libjs-jquery-cookie libjs-jquery-event-drag libjs-jquery-metadata libjs-jquery-mousewheel libjs-jquery-tablesorter libjs-jquery-ui php-gettext Use 'apt-get autoremove' to remove them. The following extra packages will be installed: libmcrypt4:i386 libmhash2:i386 libpq5:i386 Suggested packages: libmcrypt-dev:i386 mcrypt:i386 mit-scheme-dbg:i386 The following packages will be REMOVED: libmcrypt-dev libmcrypt4 mcrypt php5-mcrypt phpmyadmin The following NEW packages will be installed: libmcrypt4:i386 libmhash2:i386 libpq5:i386 mit-scheme:i386 0 upgraded, 4 newly installed, 5 to remove and 38 not upgraded. Need to get 6,668 kB of archives. After this operation, 5,040 kB disk space will be freed.

Seems the problem is between libmcrypt4 and libmcrypt4:i386. Is there not an x64 version of Scheme, or a way to keep those two mcrypt versions from interfering with each other? Best (of poor) options looks like installing Scheme in a 32bit virtual machine. Another option is compiling PHP from a 32 bit source, if that is possible on a 64bit machine. Anyone else run into this issue?


I actually ended up building mit-scheme from source outside my package manager on gentoo two years ago and it's still working. I would suggest you install mit-scheme from the source ( or update to jessie, as jessie includes an amd64 version, whereas wheezy does not.

So within wheezy the answer is not. However I know for sure you can compile 9.0.1 and later to a 64-bit target.

file /usr/local/bin/mit-scheme-x86-64
/usr/local/bin/mit-scheme-x86-64: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), dynamically linked, interpreter /lib64/, for GNU/Linux 2.6.9, not stripped

Posted on by WorBlux