(cherry picked from commit 0d57ba1d02c5bde2ab22a71d21a95849b21e9539)

Detect which system the Makefile is running on to compile for

See merge request STJr/SRB2!1123

Use WARNINGMODE by default

See merge request STJr/SRB2!1122

This should work for mingw and linux so far.

(cherry picked from commit ef2bff6383b16385f9874e1c9c6b66c9df794f5b)

Add missing GCC version flags to the Makefile

See merge request STJr/SRB2!1087

Fix the Master Server so it works

See merge request STJr/SRB2!856

CMAKE additions: SDL Mixer X, *.debug adjustments, CPACK adjustments, CCACHE

See merge request STJr/SRB2!992

Instructions:
1. In SQL, create an account called "srb2_ms" @ "localhost" (or your hostname).
2. Grant the account full priviledges to "srb2_ms" (the database).
3. Compile, and run using the sh script provided.
That's all I'm telling you, I don't want this to become rampant.

Automate some of the version numbers nonsense

See merge request STJr/SRB2!1054

I guess GCC isn't always "GCC"

See merge request STJr/SRB2!1057

Merge branch 'i-added-the-branch-name-into-the-version-command-when-outside-of-develop-mode' into 'master'

Adds the branch name into the version command printout when outside of DEVELOP mode.

See merge request STJr/SRB2!981

Detect GCC version in Makefile

See merge request STJr/SRB2!1002

CMake support. Srb2win.rc still needs touchy, whatever.

2.2.6 preparation

See merge request STJr/SRB2!1050

Revert "Fix computation of very high pings"

See merge request !1053

This reverts commit 82dbe95e.

Fix GL y-shearing ignoring a Y-flipped transform

See merge request STJr/SRB2!1051

Marathon Run adjustments

See merge request !1048

Fix models that use sprite textures

See merge request STJr/SRB2!1049

Bruh Core Zone 2

See merge request STJr/SRB2!1047

Introduce a live event backup penalty for non MA_INGAME runs, since the change to saving time causes problems for this.

Hopefully fix the issue, which I can't recreate, of live event backups being created even if they shouldn't.