Module: RCEE::Precompiled::ExtConf

Defined in:
ext/precompiled/extconf.rb

Constant Summary collapse

PACKAGE_ROOT_DIR = 
File.expand_path(File.join(File.dirname(__FILE__), "..", ".."))

Class Method Summary collapse

Class Method Details

.configure ⇒ Object 



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# File 'ext/precompiled/extconf.rb', line 10

def configure
  configure_cross_compilers
  configure_packaged_libraries
  create_makefile("rcee/precompiled/precompiled")
end

.configure_cross_compilers ⇒ Object 



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# File 'ext/precompiled/extconf.rb', line 16

def configure_cross_compilers
  RbConfig::CONFIG["CC"] = RbConfig::MAKEFILE_CONFIG["CC"] = ENV["CC"] if ENV["CC"]
  ENV["CC"] = RbConfig::CONFIG["CC"]
end

.configure_packaged_libraries ⇒ Object 



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# File 'ext/precompiled/extconf.rb', line 21

def configure_packaged_libraries
  recipe = libyaml_recipe

  # pass some environment variables to the libyaml configuration for cross-compilation
  if cross_build?
    ENV.to_h.tap do |env|
      # -fPIC is necessary for linking into a shared library
      env["CFLAGS"] = [env["CFLAGS"], "-fPIC"].join(" ")
      env["SUBDIRS"] = "include src" # libyaml: skip tests

      recipe.configure_options += env.map { |key, value| "#{key}=#{value.strip}" }
    end
  end

  # ensure libyaml has already been unpacked, configured, and compiled
  unless File.exist?(File.join(recipe.target, recipe.host, recipe.name, recipe.version))
    recipe.cook
  end

  # use the packaged libyaml
  recipe.activate
  pkg_config(File.join(recipe.path, "lib", "pkgconfig", "yaml-0.1.pc"))

  # assert that we can build against the packaged libyaml
  unless have_library("yaml", "yaml_get_version", "yaml.h")
    abort("\nERROR: *** could not find libyaml development environment ***\n\n")
  end
end

.cross_build? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/precompiled/extconf.rb', line 50

def cross_build?
  enable_config("cross-build")
end

.download ⇒ Object 



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# File 'ext/precompiled/extconf.rb', line 54

def download
  libyaml_recipe.download
end

.libyaml_recipe ⇒ Object 



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# File 'ext/precompiled/extconf.rb', line 58

def libyaml_recipe
  MiniPortile.new("yaml", "0.2.5").tap do |recipe|
    recipe.files = [{
      url: "https://github.com/yaml/libyaml/releases/download/0.2.5/yaml-0.2.5.tar.gz",
      sha256: "c642ae9b75fee120b2d96c712538bd2cf283228d2337df2cf2988e3c02678ef4"
    }]
    recipe.target = File.join(PACKAGE_ROOT_DIR, "ports")
  end
end