Subject: ImageMagick being build without threads
To: None <>
From: Idar Tollefsen <>
List: tech-pkg
Date: 04/09/2005 14:09:16

What's the reasoning behind --without-threads in 

It was introduced in version 1.59 of the Makefile before the split to 
Makefile.common. The comment for v1.59 says it's the update to 
ImageMagick 5.2.2 and the change log describes improvements in 
thread-safety and how that version was thread-safe when used with POSIX 
threads. It also says it was not completely thread-safe under Mac or 
Windows. Is that why --without-threads was introduced? If so, is this 
still necessary?

I have been using ImageMagick on OS X, built with threads, in my own 
multithreaded programs for a little over a year and have not seen any 
indications that it isn't thread safe.

- IT