<p>A Shader entry can carry defines, spelled like the compiler's -D (NAME is defined to 1, NAME=VALUE to VALUE), and a variant that names its output, so one source compiles into several outputs: ui.comp.glsl with variant sets becomes ui.comp.sets.spv. A configuration in which two entries share an output name is refused with both named, as are a malformed define and a variant with a path separator.</p>
<p>Compiles with a sysroot now use the sysroot's own libc++ headers instead of the bundled toolchain's, which fixes cross builds against a musl sysroot that include a standard header textually and stops glibc sysroot builds from silently compiling against the wrong libc++ release. The project.so stamp hashes every part of the host build, so a changed declaration recompiles it. The vendored json.hpp is gone.</p>
<p>The bundled toolchain is now LLVM 23.1.2. Build outputs are kept per compiler, so the first build after updating recompiles each project into a fresh directory and nothing has to be cleaned by hand.</p>
<p>Cross builds pick the std module source that matches the sysroot's libc++ release. The source for libc++ 22 ships beside the bundled 23 for sysroots that carry libc++ without one, such as Alpine, and a sysroot nothing matches fails with one line naming both releases. crafter-build --version prints the libc++ release in use.</p>
<p>First release distributed as a Flatpak, with a bundled LLVM 22 toolchain and WASI sysroot. Windows host support is removed; crafter-build gains --version and resolves its compiler from one place.</p>
