On 07-11-2011 13:29, Jacob Carlborg wrote:
On 2011-11-07 11:55, Manu wrote:
True-ish, but they're not even slightly the same from a developer
perspective. People often make that mistake, where technologies are
similar, but neglect the fact that you have to do fundamentally
different things on the devices.
They need to be distinguished. If darwin is defined, then it ALSO needs
a OSX/iOS for disambiguation in addition.
That's correct but it also depends on what you're developing. Say if you
develop a library for handling strings (not drawing) they would probably
be exactly the same on Mac OS X and iOS.
Yes, but they need to be declared standard, and listed somewhere. If
they're not reliable, then you'll inevitably be in the same mess as
cross platform C apps where you need a global header that parses and
munges a huge pile of arbitrary defines into useful macros for your app.
This is a list of all predefined version identifiers:
http://d-programming-language.org/version.html#PredefinedVersions
That list is, in fact, very out of date. I have some pending patches in
my fork here:
https://github.com/alexrp/d-programming-language.org/commits/master
I'll send those upstream when the GDC patch is merged.
For any platform/architecture, there should ALWAYS be available at least
identifiers for PLATFORM, OS, and ARCHITECTURE.
An identifier for TOOLCHAIN is often useful too, since different
toolchains for the same system might be slight different, eg. console
game dev in particular... GCC, SN, Codewarrior, proprietary compilers;
all target exactly the same thing, but require some toolchain specific
code.
What is "platform" in this case.
Basically I think if those three (I'd argue for 4) things aren't
present, standardised, and dependable, there will always eventually be
the mess we all love in the top of C header files.
For instance, the OSX example above, I'd suggest something like:
PLATFORM = darwin
OS = OSX/iOS
ARCHITECTURE = X86/PPC/ARM
TOOLCHAIN = [whatever]
Ok, so for linux it could be the following?
platform = linux
os = ubuntu
architecture = x86
tool chain = gcc
- Alex
