17.2.4.500-1

• Updated Mesa3D to 17.2.4.
• Built LLVM and Mesa3D with Visual Studio 2017 v15.4.1.
• Built S3TC with Mingw-w64 standalone GCC 7.2.0.

Build script

• Fix Mesa version detection logic epic fail with release candidates.
• Dead variables clean-up.
• Load Visual Studio environment only when building LLVM with Ninja.
• S3TC build: If both MSYS2 and standalone Mingw-W64 are installed let the user pick which to use.
• S3TC MSYS2 build: prefer 64-bit MSYS2 over 32-bit if both installed.

Build script documentation

• S3TC build with standalone Mingw-w64 is no longer deprecated. GCC 7.2 update finally took place.
• You are now asked which flavor of Mingw-W64 to use when building S3TC if both MSYS2 and standalone are installed.

17.2.3.500-1

• Updated Mesa3D to 17.2.3.
• Built S3TC with MSYS2 Mingw-w64 GCC 7.2.0.
• Built LLVM 5.0 and Mesa with Visual Studio 2017 v15.4.0.

Deployment utility

• Made easy to swap osmesa variants.
• Check before attempting to create symbolic links. Avoid harmless errors which may be confusing.

Build script

• Drop S3TC build if Mesa master source code is detected. S3TC is now built-in. Texture cache enabling patch is still needed though.
• Python modules updating: use both pip install -U explicitly and pip freeze in a hybrid approach for most optimal behavior.
• Improved PATH cleanning.
• Support building S3TC with MSYS2 Mingw-W64 GCC by default. They fixed their problem with 32-bit binaries when they upgraded to GCC 7.2.0 (Alexpux/MINGW-packages#2271).
• Drop suport for Visual Studio 2015 completely. It survived so long due to Scons 3.0.0 issues.
• Mesa build without git workaround: git_sha1.h was generated in an incorrect location during 64-bit builds.
• Drop Scons 3.0.0 compatibility patch. It landed in Mesa 17.2.3.
• Allow building Mesa without git since Scons 3.0.0 compatibility patch landed in Mesa stable.

Build script documentation

• MSYS2 Mingw-w64 is now the preferred method to build S3TC.
• Visual Studio 2017 is now required to build LLVM and Mesa3D.

17.2.2.500-1

• Updated Mesa3D to 17.2.2.
• Built with Scons 3.0.0. Made use of a compatibility patch.
• Built LLVM 5.0 and Mesa3D with Visual Studio 2017 v15.3.5.

Build script

• Fixed python modules update check. Always check if mako not found, ask otherwise.
• Made build script aware of Mesa branches, helps with patches applicability narrowing.
• Add Scons 3.0.0 compatibility patch to Mesa3D Git-powered auto-patches.
  Only apply it to Mesa stable, patch is upstream now.
• Determine Mesa branch even if it is not built. Preparation for S3TC merger.
• Ensure auto-patching is done once and only once.
• Look for Git before trying to patch. It is pointless if it is not found.
• This script won't find Scons if it isn't in a certain relative location to it.
  Addressed this by fixing scons locating when Python it's in PATH right from the beginning.
• Added Scons to python update checking and auto-install. Depends on wheel.
  1 less dependency requiring manual installation.
• Halt execution if Mesa is missing and it can't be acquired or its acquiring is refused by user.
• Drop LLVM 5.0 compatibility patch. Patch is upstream in all active branches.

Build script documentation

• There is a compatibility fix for Scons 3.0.0.
• Scons can now be acquired by build script automatically. Depends on wheel.
• Git version control is now mandatory due to compatibility with latest Scons needing a patch.
• Updated questions list asked by this script.

Known issues

• Mesa build: Scons 3.0.0 always uses target architecture compiler when using cross-compiling environment. This may impact compilation performance when making 32-bit builds.

17.2.1.500-1

• Updated Mesa3D to 17.2.1;
• Added OpenSWR support to deployment utility;
• Built Mesa3D with LLVM 5.0 using a patch which adds support for it;
• Built LLVM with Visual Studio 2017 v15.3.4;
• Mesa3D build: updated Python to 2.7.14;
• Build script: Always use a compiler that matches host architecture; previously CMake with MsBuild was always using 32-bit compiler throwing a warning in the process; ninja and Scons were using the compiler matching the build target architecture;
• Build script: Support downloading Mesa code using Git, apply LLVM 5.0 support and S3TC texture cache enabling patches automatically using Git when possible;
• Deployment utility and build script: 32-bit OpenSWR is unsupported;
• Build script: Attempted restore of Visual Studio 2015 support; Visual Studio 2015 compatibility toolset for VS2017 should work fine; Visual Studio 2015 default toolset is untested;
• Build script documentation: switch Mesa download link to HTTPS, info about LLVM 5.0 support auto-patch, S3TC texture cache auto-patching, unsupported 32-bit OpenSWR and build script wizard updates.

17.2.0.401-1

• Updated Mesa3D to 17.2.0;
• Rebuilt LLVM 4.0.1 with Visual Studio 2017 v15.3.3;
• Build script - show in title bar if building for x86 or x64;
• Build script dependency cleanup - Visual Studio C/C++ standard library modules are not needed.

17.1.8.401-1

• Updated Mesa3D to 17.1.8;
• Improve build script startup performance when no Internet connection is available. Regression from 7626fdb.

17.1.7.401-1

• Buildscript - Visual Studio 2017 v15.3.2 compatibility fix and other improvements;
• Rebuilt LLVM 4.0.1 with Visual Studio 2017 v15.3.2.
• Updated Mesa3D to 17.1.7

17.1.6.401-1

• Updated Mesa3D to 17.1.6
• Re-built LLVM 4.0.1 with Visual Studio 2017 v15.2.26430.16.

17.1.5.401-1

Updated Mesa3D to 17.1.5.

17.1.4.401-1

• Rebuilt Mesa 17.1.4 with LLVM 4.0.1
• Built Mesa and LLVM with Visual Studio 2017 v15.2.26430.15.