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|
#!/usr/bin/env ruby
if !defined?(RUBY_ENGINE) || RUBY_ENGINE == 'ruby' || RUBY_ENGINE == 'rbx'
require 'mkmf'
require 'rbconfig'
def system_libffi_usable?
# We need pkg_config or ffi.h
libffi_ok = pkg_config("libffi") ||
have_header("ffi.h") ||
find_header("ffi.h", "/usr/local/include", "/usr/include/ffi")
# Ensure we can link to ffi_call
libffi_ok &&= have_library("ffi", "ffi_call", [ "ffi.h" ]) ||
have_library("libffi", "ffi_call", [ "ffi.h" ])
# And we need a libffi version recent enough to provide ffi_closure_alloc
libffi_ok &&= have_func("ffi_closure_alloc")
end
dir_config("ffi_c")
# recent versions of ruby add restrictive ansi and warning flags on a whim - kill them all
$warnflags = ''
$CFLAGS.gsub!(/[\s+]-ansi/, '')
$CFLAGS.gsub!(/[\s+]-std=[^\s]+/, '')
# solaris 10 needs -c99 for <stdbool.h>
$CFLAGS << " -std=c99" if RbConfig::CONFIG['host_os'] =~ /solaris(!?2\.11)/
# Check whether we use system libffi
system_libffi = enable_config('system-libffi', :try)
if system_libffi == :try
system_libffi = ENV['RUBY_CC_VERSION'].nil? && system_libffi_usable?
elsif system_libffi
abort "system libffi is not usable" unless system_libffi_usable?
end
have_header('shlwapi.h')
have_func('rb_thread_call_without_gvl') || abort("Ruby C-API function `rb_thread_call_without_gvl` is missing")
have_func('ruby_native_thread_p')
if RUBY_VERSION >= "2.3.0"
# On OSX and Linux ruby_thread_has_gvl_p() is detected but fails at runtime for ruby < 2.3.0
have_func('ruby_thread_has_gvl_p')
end
if system_libffi
have_func('ffi_prep_cif_var')
$defs << "-DHAVE_RAW_API" if have_func("ffi_raw_call") && have_func("ffi_prep_raw_closure")
else
$defs << "-DHAVE_FFI_PREP_CIF_VAR"
$defs << "-DUSE_INTERNAL_LIBFFI"
end
$defs << "-DHAVE_EXTCONF_H" if $defs.empty? # needed so create_header works
$defs << "-DFFI_BUILDING" if RbConfig::CONFIG['host_os'] =~ /mswin/ # for compatibility with newer libffi
create_header
$LOCAL_LIBS << " ./libffi/.libs/libffi_convenience.lib" if !system_libffi && RbConfig::CONFIG['host_os'] =~ /mswin/
create_makefile("ffi_c")
unless system_libffi
File.open("Makefile", "a") do |mf|
mf.puts "LIBFFI_HOST=--host=#{RbConfig::CONFIG['host_alias']}" if RbConfig::CONFIG.has_key?("host_alias")
if RbConfig::CONFIG['host_os'].downcase =~ /darwin/
mf.puts "include ${srcdir}/libffi.darwin.mk"
elsif RbConfig::CONFIG['host_os'].downcase =~ /bsd/
mf.puts '.include "${srcdir}/libffi.bsd.mk"'
elsif RbConfig::CONFIG['host_os'].downcase =~ /mswin64/
mf.puts '!include $(srcdir)/libffi.vc64.mk'
elsif RbConfig::CONFIG['host_os'].downcase =~ /mswin32/
mf.puts '!include $(srcdir)/libffi.vc.mk'
else
mf.puts "include ${srcdir}/libffi.mk"
end
end
end
else
File.open("Makefile", "w") do |mf|
mf.puts "# Dummy makefile for non-mri rubies"
mf.puts "all install::\n"
end
end
|
