26.4.6 Supporting Building with a Cross Compiler

If you want to make it possible to build a program which you are developing using a cross compiler, you must take some care when writing your `configure.in' and make rules. Simple cases will normally work correctly. However, it is not hard to write configure tests which will fail when building with a cross compiler, so some care is required to avoid this.

You should write your `configure' scripts to support building with a cross compiler if you can, because that will permit others to build your program on a fast compilation server.