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# mruby build configuration for raylib-jamstack.
#
# Produces vendor/mruby/build/host/lib/libmruby.a containing the default gembox
# plus our raylib + rmlui bindings mrbgems. The final link (raylib + RmlUi +
# system GL) is done by build.zig.
#
# build.zig invokes rake with JAMSTACK_ROOT set to the project root.
STACK_ROOT = ENV['JAMSTACK_ROOT'] || File.expand_path('..', __dir__)
MRuby::Build.new do |conf|
toolchain :gcc
conf.enable_debug
# Disable preallocated symbols: lets us add new binding method names without
# regenerating the presym table (avoids stale-symbol build errors on rebuild).
conf.disable_presym
# Force 64-bit mrb_int on ALL targets. flecs entity ids (ecs_entity_t) carry a
# generation in the high 32 bits; with the default 32-bit mrb_int (wasm32), the
# generation is truncated across the mruby boundary and recycled entities leak
# (ecs_is_alive/ecs_delete see a stale generation). See .agents/knowledge/flecs-binding.md.
conf.cc.defines << 'MRB_INT64'
conf.cxx.defines << 'MRB_INT64'
conf.gembox 'default'
# Our raylib bindings (C + mrblib Ruby sugar).
conf.gem File.join(STACK_ROOT, 'mrbgems', 'raylib')
# Our RmlUi bindings (C++ + mrblib Ruby sugar).
conf.gem File.join(STACK_ROOT, 'mrbgems', 'rmlui')
# Our flecs (ECS) bindings (C + mrblib Ruby sugar).
conf.gem File.join(STACK_ROOT, 'mrbgems', 'flecs')
# Our Jolt (3D physics) bindings (C over the joltc C API + mrblib Ruby sugar).
conf.gem File.join(STACK_ROOT, 'mrbgems', 'jolt')
# Study-audio native helper: extracts raw float samples from audio files
# via raylib's Wave API for the pure-Ruby silence detector.
conf.gem File.join(STACK_ROOT, 'mrbgems', 'study_audio')
conf.enable_test if ENV['JAMSTACK_TEST']
end
# Web (Emscripten/WASM) cross build. Defined only when JAMSTACK_WEB is set so the
# desktop build doesn't require emcc. Produces build/web/lib/libmruby.a (wasm),
# linked by build_web.sh with the wasm raylib + RmlUi.
if ENV['JAMSTACK_WEB']
MRuby::CrossBuild.new('web') do |conf|
toolchain :clang
conf.cc.command = 'emcc'
conf.cxx.command = 'em++'
conf.linker.command = 'emcc'
conf.archiver.command = 'emar'
# C++ exceptions: mruby is built with MRB_USE_CXX_EXCEPTION (a C++ mrbgem is
# present), and RmlUi uses exceptions; enable them for the wasm target.
conf.cc.flags << '-fexceptions'
conf.cxx.flags << '-fexceptions'
conf.enable_debug
conf.disable_presym
conf.cc.defines << 'MRB_INT64'
conf.cxx.defines << 'MRB_INT64'
conf.gembox 'default'
conf.gem File.join(STACK_ROOT, 'mrbgems', 'raylib')
conf.gem File.join(STACK_ROOT, 'mrbgems', 'rmlui')
conf.gem File.join(STACK_ROOT, 'mrbgems', 'flecs')
conf.gem File.join(STACK_ROOT, 'mrbgems', 'jolt')
conf.gem File.join(STACK_ROOT, 'mrbgems', 'study_audio')
end
end
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