Re: Compiling code on different machine?
On Mar 6, 1:30 pm, Jeff Schwab <j...@schwabcenter.com> wrote:
mlt wrote:
Is there someway in C++ to read a machines ID of somekind?
I have some code that should be compiled in a certain way
when it is compiled on a laptop and in another way when its
compiled on a desktop.
Currently I do:
#define DESKTOP 1
in main() {
if(DESKTOP)
{
// do desktop compilation
}
else
{
// do laptop compilation
}
}
I could be nice if there was some system variable that I
could test for that would identify the correct machine.
There's no portable mechanism (AFAIK) guaranteed by the C or
C++ standards, but try gethostbyname(3).
He spoke of compiling, not run time. My makefiles regularly do
this, using $(shell uname -n) to get the host name. This still
doesn't give me any information about the type, however;
basically, I need a different configuration file for every host
I support. On Unix, this is easily handled by means of symbolic
links, but under Windows, I don't know. (And of course, this
supposes standardizing on a common make for all platforms. The
expression I gave above is for GNU make; other makes will likely
have a different syntax, if they support it at all.)
--
James Kanze (GABI Software) email:james.kanze@gmail.com
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