/usr/lib/ruby/vendor_ruby/mkmf-gnome2.rb is in ruby-gnome2-dev 3.2.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# mkmf-gnome2.rb
#
# Extended mkmf for Ruby-GNOME2 and Ruby/GLib based libraries.
#
# Copyright(C) 2003-2015 Ruby-GNOME2 Project.
#
# This program is licenced under the same
# license of Ruby-GNOME2.
#
require 'English'
require 'mkmf'
require 'pkg-config'
require 'glib-mkenums'
$CFLAGS += " #{ENV['CFLAGS']}" if ENV['CFLAGS']
def gcc?
CONFIG["GCC"] == "yes"
end
def disable_optimization_build_flag(flags)
if gcc?
flags.gsub(/(^|\s)?-O\d(\s|$)?/, '\\1-O0\\2')
else
flags
end
end
def enable_debug_build_flag(flags)
if gcc?
debug_option_pattern = /(^|\s)-g\d?(\s|$)/
if debug_option_pattern =~ flags
flags.gsub(debug_option_pattern, '\\1-g3\\2')
else
flags + " -g3"
end
else
flags
end
end
checking_for(checking_message("--enable-debug-build option")) do
enable_debug_build = enable_config("debug-build", false)
if enable_debug_build
$CFLAGS = disable_optimization_build_flag($CFLAGS)
$CFLAGS = enable_debug_build_flag($CFLAGS)
$CXXFLAGS = disable_optimization_build_flag($CXXFLAGS)
$CXXFLAGS = enable_debug_build_flag($CXXFLAGS)
end
enable_debug_build
end
def try_compiler_option(opt, &block)
checking_for "#{opt} option to compiler" do
if try_compile '', opt + " -Werror", &block
$CFLAGS += " #{opt}"
true
else
false
end
end
end
try_compiler_option '-Wall'
try_compiler_option '-Waggregate-return'
try_compiler_option '-Wcast-align'
# NOTE: Generates way too many false positives.
# try_compiler_option '-Wconversion'
try_compiler_option '-Wextra'
try_compiler_option '-Wformat=2'
try_compiler_option '-Winit-self'
# NOTE: This generates warnings for functions defined in ruby.h.
# try_compiler_option '-Winline'
try_compiler_option '-Wlarger-than-65500'
try_compiler_option '-Wmissing-declarations'
try_compiler_option '-Wmissing-format-attribute'
try_compiler_option '-Wmissing-include-dirs'
try_compiler_option '-Wmissing-noreturn'
try_compiler_option '-Wmissing-prototypes'
try_compiler_option '-Wnested-externs'
try_compiler_option '-Wold-style-definition'
try_compiler_option '-Wpacked'
try_compiler_option '-Wp,-D_FORTIFY_SOURCE=2'
try_compiler_option '-Wpointer-arith'
# NOTE: ruby.h and intern.h have too many of these.
# try_compiler_option '-Wredundant-decls'
# NOTE: Complains about index, for example.
# try_compiler_option '-Wshadow'
try_compiler_option '-Wswitch-default'
try_compiler_option '-Wswitch-enum'
try_compiler_option '-Wundef'
# NOTE: Incredible amounts of false positives.
#try_compiler_option '-Wunreachable-code'
try_compiler_option '-Wout-of-line-declaration'
try_compiler_option '-Wunsafe-loop-optimizations'
try_compiler_option '-Wwrite-strings'
if /-Wl,--no-undefined/ =~ $LDFLAGS.to_s
$LDFLAGS.gsub!(/-Wl,--no-undefined/, '')
end
include_path = nil
if ENV['GTK_BASEPATH'] and /cygwin/ !~ RUBY_PLATFORM
include_path = (ENV['GTK_BASEPATH'] + "\\INCLUDE").gsub("\\", "/")
# $hdrdir += " -I#{include_path} "
$INCFLAGS += " -I#{include_path} "
end
def windows_platform?
/cygwin|mingw|mswin/ === RUBY_PLATFORM
end
def setup_windows(target_name, base_dir=nil)
checking_for(checking_message("Windows")) do
if windows_platform?
import_library_name = "libruby-#{target_name}.a"
$DLDFLAGS << " -Wl,--out-implib=#{import_library_name}"
$cleanfiles << import_library_name
base_dir ||= Pathname($0).dirname.parent.parent.expand_path
base_dir = Pathname(base_dir) if base_dir.is_a?(String)
binary_base_dir = base_dir + "vendor" + "local"
if binary_base_dir.exist?
$INCFLAGS += " -I#{binary_base_dir}/include"
pkg_config_dir = binary_base_dir + "lib" + "pkgconfig"
PKGConfig.add_path(pkg_config_dir.to_s)
end
true
else
false
end
end
end
# For backward compatibility
def setup_win32(*args, &block)
setup_windows(*args, &block)
end
def find_gem_spec(package)
begin
Gem::Specification.find_by_name(package)
rescue LoadError
nil
end
end
def setup_homebrew_libffi
platform = NativePackageInstaller::Platform.detect
return unless platform.is_a?(NativePackageInstaller::Platform::Homebrew)
libffi_prefix = `brew --prefix libffi`.chomp
PKGConfig.add_path("#{libffi_prefix}/lib/pkgconfig")
end
#add_depend_package("glib2", "ext/glib2", "/...../ruby-gnome2")
def add_depend_package(target_name, target_srcdir, top_srcdir, options={})
gem_spec = find_gem_spec(target_name)
if gem_spec
target_source_dir = File.join(gem_spec.full_gem_path, "ext/#{target_name}")
target_build_dir = target_source_dir
add_depend_package_path(target_name,
target_source_dir,
target_build_dir)
end
[top_srcdir,
File.join(top_srcdir, target_name),
$configure_args['--topdir'],
File.join($configure_args['--topdir'], target_name)].each do |topdir|
topdir = File.expand_path(topdir)
target_source_dir_full_path = File.join(topdir, target_srcdir)
top_build_dir = options[:top_build_dir] || topdir
target_build_dir = options[:target_build_dir] || target_srcdir
target_build_dir_full_path = File.join(top_build_dir, target_build_dir)
unless File.exist?(target_build_dir_full_path)
target_build_dir_full_path = File.join(top_build_dir, target_srcdir)
end
unless File.exist?(target_build_dir_full_path)
target_build_dir_full_path = File.join(topdir, target_build_dir)
end
unless File.exist?(target_build_dir_full_path)
target_build_dir_full_path = File.join(topdir, target_srcdir)
end
add_depend_package_path(target_name,
target_source_dir_full_path,
target_build_dir_full_path)
end
end
def add_depend_package_path(target_name, target_source_dir, target_build_dir)
if File.exist?(target_source_dir)
$INCFLAGS = "-I#{target_source_dir} #{$INCFLAGS}"
end
if windows_platform?
target_base_dir = Pathname.new(target_source_dir).parent.parent
target_binary_base_dir = target_base_dir + "vendor" + "local"
if target_binary_base_dir.exist?
$INCFLAGS = "-I#{target_binary_base_dir}/include #{$INCFLAGS}"
target_pkg_config_dir = target_binary_base_dir + "lib" + "pkgconfig"
PKGConfig.add_path(target_pkg_config_dir.to_s)
end
end
return unless File.exist?(target_build_dir)
if target_source_dir != target_build_dir
$INCFLAGS = "-I#{target_build_dir} #{$INCFLAGS}"
end
if windows_platform?
library_base_name = "ruby-#{target_name.gsub(/-/, '_')}"
case RUBY_PLATFORM
when /cygwin|mingw/
$LDFLAGS << " -L#{target_build_dir}"
$libs << " -l#{library_base_name}"
when /mswin/
$DLDFLAGS << " /libpath:#{target_build_dir}"
$libs << " lib#{library_base_name}.lib"
end
end
end
def add_distcleanfile(file)
$distcleanfiles ||= []
$distcleanfiles << file
end
def create_pkg_config_file(package_name, c_package,
version=nil, pc_file_name=nil)
pc_file_name ||= "#{package_name.downcase.sub(/\//, '-')}.pc"
version ||= ruby_gnome2_version || PKGConfig.modversion(c_package)
puts "creating #{pc_file_name}"
File.open(pc_file_name, 'w') do |pc_file|
if package_name.nil?
c_module_name = PKGConfig.name(c_package)
package_name = "Ruby/#{c_module_name}" if c_module_name
end
pc_file.puts("Name: #{package_name}") if package_name
description = PKGConfig.description(c_package)
pc_file.puts("Description: Ruby bindings for #{description}") if description
pc_file.printf("Version: #{version}")
end
add_distcleanfile(pc_file_name)
end
def ruby_gnome2_version(glib_source_directory=nil)
glib_source_directory ||= File.join(File.dirname(__FILE__), "..",
"ext", "glib2")
rbglib_h = File.join(glib_source_directory, "rbglib.h")
return nil unless File.exist?(rbglib_h)
version = nil
File.open(rbglib_h) do |h_file|
version_info = {}
h_file.each_line do |line|
case line
when /\A#define RBGLIB_(MAJOR|MINOR|MICRO)_VERSION\s+(\d+)/
version_info[$1] = $2
end
end
version_info = [version_info["MAJOR"],
version_info["MINOR"],
version_info["MICRO"]].compact
version = version_info.join(".") if version_info.size == 3
end
version
end
def ensure_objs
return unless $objs.nil?
source_dir = '$(srcdir)'
RbConfig.expand(source_dir)
pattern = "*.{#{SRC_EXT.join(',')}}"
srcs = Dir[File.join(source_dir, pattern)]
srcs |= Dir[File.join(".", pattern)]
$objs = srcs.collect do |f|
File.basename(f, ".*") + ".o"
end.uniq
end
def create_makefile_at_srcdir(pkg_name, srcdir, defs = nil)
base_dir = File.basename(Dir.pwd)
last_common_index = srcdir.rindex(base_dir)
if last_common_index
builddir = srcdir[(last_common_index + base_dir.size + 1)..-1]
end
builddir ||= "."
FileUtils.mkdir_p(builddir)
Dir.chdir(builddir) do
yield if block_given?
$defs << defs if defs
ensure_objs
create_makefile(pkg_name, srcdir)
end
end
def run_make_in_sub_dirs_command(command, sub_dirs)
if /mswin/ =~ RUBY_PLATFORM
sub_dirs.collect do |dir|
<<-EOM.chmop
@cd #{dir}
@nmake -nologo DESTDIR=$(DESTDIR) #{command}
@cd ..
EOM
end.join("\n")
else
sub_dirs.collect do |dir|
"\t@cd #{dir}; $(MAKE) #{command}"
end.join("\n")
end
end
def create_top_makefile(sub_dirs=["src"])
File.open("Makefile", "w") do |makefile|
makefile.print(<<-EOM)
all:
#{run_make_in_sub_dirs_command("all", sub_dirs)}
install:
#{run_make_in_sub_dirs_command("install", sub_dirs)}
site-install:
#{run_make_in_sub_dirs_command("site-install", sub_dirs)}
clean:
#{run_make_in_sub_dirs_command("clean", sub_dirs)}
EOM
if /mswin/ =~ RUBY_PLATFORM
makefile.print(<<-EOM)
@if exist extconf.h del extconf.h
@if exist conftest.* del conftest.*
@if exist *.lib del *.lib
@if exist *~ del *~
@if exist mkmf.log del mkmf.log
EOM
else
makefile.print(<<-EOM)
distclean: clean
#{run_make_in_sub_dirs_command("distclean", sub_dirs)}
@rm -f Makefile extconf.h conftest.*
@rm -f core *~ mkmf.log
EOM
end
end
end
# This is used for the library which doesn't support version info.
def make_version_header(app_name, pkgname, dir = "src")
version = PKGConfig.modversion(pkgname).split(/\./)
(0..2).each do |v|
version[v] = "0" unless version[v]
if /\A(\d+)/ =~ version[v]
number = $1
tag = $POSTMATCH
unless tag.empty?
version[v] = number
version[3] = tag
end
end
end
filename = "rb#{app_name.downcase}version.h"
puts "creating #{filename}"
add_distcleanfile(filename)
FileUtils.mkdir_p(dir)
out = File.open(File.join(dir, filename), "w")
version_definitions = []
["MAJOR", "MINOR", "MICRO", "TAG"].each_with_index do |type, i|
_version = version[i]
next if _version.nil?
version_definitions << "#define #{app_name}_#{type}_VERSION (#{_version})"
end
out.print %Q[/* -*- c-file-style: "ruby"; indent-tabs-mode: nil -*- */
/************************************************
#{filename} -
This file was generated by mkmf-gnome2.rb.
************************************************/
#ifndef __RB#{app_name}_VERSION_H__
#define __RB#{app_name}_VERSION_H__
#{version_definitions.join("\n")}
#define #{app_name}_CHECK_VERSION(major,minor,micro) \\
(#{app_name}_MAJOR_VERSION > (major) || \\
(#{app_name}_MAJOR_VERSION == (major) && #{app_name}_MINOR_VERSION > (minor)) || \\
(#{app_name}_MAJOR_VERSION == (major) && #{app_name}_MINOR_VERSION == (minor) && \\
#{app_name}_MICRO_VERSION >= (micro)))
#endif /* __RB#{app_name}_VERSION_H__ */
]
out.close
end
def add_obj(name)
ensure_objs
$objs << name unless $objs.index(name)
end
def glib_mkenums(prefix, files, g_type_prefix, include_files, options={})
add_distcleanfile(prefix + ".h")
add_distcleanfile(prefix + ".c")
GLib::MkEnums.create(prefix, files, g_type_prefix, include_files, options)
add_obj("#{prefix}.o")
end
def check_cairo(options={})
rcairo_source_dir = options[:rcairo_source_dir]
if rcairo_source_dir.nil?
rcairo_source_base_dir = "rcairo"
top_dir = options[:top_dir]
if top_dir
rcairo_source_dir = File.join(top_dir, "..", rcairo_source_base_dir)
end
end
if rcairo_source_dir and !File.exist?(rcairo_source_dir)
rcairo_source_dir = nil
end
if rcairo_source_dir.nil?
cairo_gem_spec = find_gem_spec("cairo")
rcairo_source_dir = cairo_gem_spec.full_gem_path if cairo_gem_spec
end
unless rcairo_source_dir.nil?
if windows_platform?
options = {}
build_dir = "tmp/#{RUBY_PLATFORM}/cairo/#{RUBY_VERSION}"
if File.exist?(File.join(rcairo_source_dir, build_dir))
options[:target_build_dir] = build_dir
end
add_depend_package("cairo", "ext/cairo", rcairo_source_dir, options)
$defs << "-DRUBY_CAIRO_PLATFORM_WIN32"
end
$INCFLAGS += " -I#{rcairo_source_dir}/ext/cairo"
end
PKGConfig.have_package('cairo') and have_header('rb_cairo.h')
end
def install_missing_native_package(native_package_info)
NativePackageInstaller.install(native_package_info)
end
def required_pkg_config_package(package_info, native_package_info=nil)
if package_info.is_a?(Array)
required_package_info = package_info
else
required_package_info = [package_info]
end
return true if PKGConfig.have_package(*required_package_info)
native_package_info ||= {}
return false unless install_missing_native_package(native_package_info)
PKGConfig.have_package(*required_package_info)
end
add_include_path = Proc.new do |dir_variable|
value = RbConfig::CONFIG[dir_variable]
if value and File.exist?(value)
$INCFLAGS << " -I$(#{dir_variable}) "
end
end
add_include_path.call("sitearchdir")
add_include_path.call("vendorarchdir")
if /mingw/ =~ RUBY_PLATFORM
$ruby.gsub!('\\', '/')
end
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