Re: [CAD_CAM_EDM_DRO] Hoping EMC-BDI is my friend....

Vince Negrete wrote:

>----- Original Message -----
>From: "Jon Elson" <elson@...>
>
>
>>In general, you do not directly give compile commands to compile a large
>>package. There is a very sophisticated command language that is part of
>>
>>
>the
>
>
>>make utility. The Makefile gives instructions to make to figure out
>>which files need to be compiled, or linked, due to changes in the source,
>>or follows directives to remove all derived files (ie. object, executable
>>and libraries) and remake them from scratch. There is another tool called
>>configure, that figures out where libraries are stored on your machine,
>>what compiler to use in what circumstances, what order include files and
>>libraries should be used in, and so on. It is an attempt to make
>>compilation
>>and linking adapt to the various versions of Unix, Linux and other posix-
>>compliant system environments.
>>
>>When I am compiling any package that consists of more than about 3
>>C source files, I create a make file for it, and let make do the work.
>>
>>
>
>Thanks Jon for the info. I'm assuming most of the configs would come with
>the Tarball and create a standard tree to work within and be able to output
>to the proper directories like /boot for the kernel, etc. But I've been
>looking for a Master set of docs to read up on How To Do it, and examples of
>it being done... Havent found any.
>Is the 2meg EMC PDF file the only one out there that has any info on
>compiling EMC? I have to look at a sample Make file to see what your
>talking about.
>

Yes, I think so. Look in /usr/local/emc/Makefile for the master
makefile, and
then every directory in the source tree has a Makefile for what is in that
directory.

>Also hoping that this doesnt go too far over my head... Honestly...
>
>
>

Makefiles are arcane, VERY arcane! there are all sorts of tricky
interactions.
But, they are also VERY powerful, making it possible to compile the same
program on many flavors of Unix, Linux, even Windows with Cygwin.

Jon