Add `host-shared.rb` to create shared mruby library.
ADD
target/host-shared.rb
+MRuby::Build.new do |conf|
+ # load specific toolchain settings
+
+ # Gets set by the VS command prompts.
+ if ENV['VisualStudioVersion'] || ENV['VSINSTALLDIR']
+ toolchain :visualcpp
+ else
+ toolchain :gcc
+ end
+
+ # include the GEM box
+ conf.gembox 'full-core'
+
+ # C compiler settings
+ conf.cc do |cc|
+ cc.flags = '-fPIC'
+ end
+
+ # mrbc settings
+ # conf.mrbc do |mrbc|
+ # mrbc.compile_options = "-g -B%{funcname} -o-" # The -g option is required for line numbers
+ # end
+
+ conf.archiver do |archiver|
+ archiver.command = 'gcc'
+ archiver.archive_options = '-shared -o %{outfile} %{objs}'
+ end
+
+ # Linker settings
+ # conf.linker do |linker|
+ # linker.command = ENV['LD'] || 'gcc'
+ # linker.flags = [ENV['LDFLAGS'] || []]
+ # linker.flags_before_libraries = []
+ # linker.libraries = %w()
+ # linker.flags_after_libraries = []
+ # linker.library_paths = []
+ # linker.option_library = '-l%s'
+ # linker.option_library_path = '-L%s'
+ # linker.link_options = "%{flags} -o "%{outfile}" %{objs} %{libs}"
+ # end
+
+ # Archiver settings
+ # conf.archiver do |archiver|
+ # archiver.command = ENV['AR'] || 'ar'
+ # archiver.archive_options = 'rs "%{outfile}" %{objs}'
+ # end
+
+ # Parser generator settings
+ # conf.yacc do |yacc|
+ # yacc.command = ENV['YACC'] || 'bison'
+ # yacc.compile_options = %q[-o "%{outfile}" "%{infile}"]
+ # end
+
+ # gperf settings
+ # conf.gperf do |gperf|
+ # gperf.command = 'gperf'
+ # gperf.compile_options = %q[-L ANSI-C -C -p -j1 -i 1 -g -o -t -N mrb_reserved_word -k"1,3,$" "%{infile}" > "%{outfile}"]
+ # end
+
+ # file extensions
+ conf.exts do |exts|
+ exts.library = '.so'
+ end
+
+ # file separetor
+ # conf.file_separator = '/'
+
+ # Turn on `enable_debug` for better debugging
+ enable_debug
+ conf.enable_bintest
+ conf.enable_test
+end

Add `host-shared.rb` to create shared mruby library.