Add `host-f32` config to test `MRB_USE_FLOAT32`; ref
ADD
build_config/host-f32.rb
+MRuby::Build.new do |conf|
+ # load specific toolchain settings
+ toolchain :gcc
+
+ # include the GEM box
+ conf.gembox 'default'
+
+ conf.cc.defines << 'MRB_USE_FLOAT32'
+
+ # Turn on `enable_debug` for better debugging
+ conf.enable_debug
+ conf.enable_test
+ conf.enable_bintest
+end

Add `host-f32` config to test `MRB_USE_FLOAT32`; ref #5329