|
100
|
1 ---
|
|
|
2 layout: post
|
|
|
3 author: Paper
|
|
|
4 title: 'GitHub Actions and ancient toolchains'
|
|
|
5 nowplaying: 'Panchiko - Sodium Chloride'
|
|
|
6 ---
|
|
|
7 <span>
|
|
|
8 CI is wonderful. I use it basically everywhere, and it's nice to get almost immediate
|
|
|
9 feedback for whether a commit I made was bogus or not.
|
|
|
10 </span>
|
|
|
11 <br><br>
|
|
|
12 <span>
|
|
|
13 That being said, it's fun to be able to make builds for weird esoteric platforms no
|
|
|
14 one except me (and maybe
|
|
|
15 <a class="prettylink" href="https://repellantmold.neocities.org/">Jade</a>)
|
|
|
16 care about.
|
|
|
17 </span>
|
|
|
18 <br><br>
|
|
|
19 <h3><strong><u>Building for ancient Windows</u></strong></h3>
|
|
|
20 <span>
|
|
|
21 MinGW-w64 (the new, modern toolchain for Windows) does not support anything below XP
|
|
|
22 or systems without SSE2, which means we have to use an older toolchain. Fortunately,
|
|
|
23 the original MinGW is still very much available, so we can just use its toolchain.
|
|
|
24 </span>
|
|
|
25 <br><br>
|
|
|
26 <span>
|
|
|
27 This poses a problem though, how are we supposed to compile for subsystems that are
|
|
|
28 unavailable in the older toolchain? Well, by making a "franken-toolchain" of course! :)
|
|
|
29 </span>
|
|
|
30 <br><br>
|
|
|
31 <span>
|
|
|
32 What I did was add a configure flag to allow custom CFLAGS during the compilation
|
|
|
33 of files that need these new headers, and added the new MinGW-w64 headers during that
|
|
|
34 step. Et voila, it works, and now Schism can be run on as low as Windows 95 or NT 4!
|
|
|
35 </span>
|
|
|
36 <br><br>
|
|
|
37 <h3><strong><u>Building for ancient Mac OS X</u></strong></h3>
|
|
|
38 <span>
|
|
|
39 Now this is tricky, in particular because I want to support PowerPC, and these systems
|
|
|
40 never had a compiler version released that could target old versions on PowerPC.
|
|
|
41 </span>
|
|
|
42 <br><br>
|
|
|
43 <span>
|
|
|
44 I started by simply targeting Leopard, since it was the easiest. I just bundled together
|
|
|
45 the compilers from mesopotamian-era Xcode, and built Schism with
|
|
|
46 <a class="prettylink" href="https://gist.github.com/miniupnp/a8f474c504eaa3ad9135">
|
|
|
47 a custom version of SDL 2 patched for Leopard</a>. It worked, and I was satisfied, until
|
|
|
48 I had an actual user that wanted to run Schism on Tiger.
|
|
|
49 </span>
|
|
|
50 <br><br>
|
|
|
51 <span>
|
|
|
52 Since the only machine I had on hand was running Panther, I decided to target it instead
|
|
|
53 of Tiger. Because the compiler version was simply too new, I had to specifically link
|
|
|
54 against the Leopard libgcc_s instead of the Panther one, and put the newer one in the
|
|
|
55 application bundle. And <a class="prettylink" href="/media/cheese/macosx-panther-schism.jpg">
|
|
|
56 it worked</a>.
|
|
|
57 </span> |
