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-rw-r--r--ext/io/console/extconf.rb61
1 files changed, 61 insertions, 0 deletions
diff --git a/ext/io/console/extconf.rb b/ext/io/console/extconf.rb
new file mode 100644
index 0000000000..dd3d221ae5
--- /dev/null
+++ b/ext/io/console/extconf.rb
@@ -0,0 +1,61 @@
+# frozen_string_literal: false
+require 'mkmf'
+
+# `--target-rbconfig` compatibility for Ruby 3.3 or earlier
+# See https://bugs.ruby-lang.org/issues/20345
+MakeMakefile::RbConfig ||= ::RbConfig
+
+have_func("rb_syserr_fail_str(0, Qnil)") or
+have_func("rb_syserr_new_str(0, Qnil)") or
+ abort
+
+have_func("rb_interned_str_cstr")
+have_func("rb_io_path", "ruby/io.h")
+have_func("rb_io_descriptor", "ruby/io.h")
+have_func("rb_io_get_write_io", "ruby/io.h")
+have_func("rb_io_closed_p", "ruby/io.h")
+have_func("rb_io_open_descriptor", "ruby/io.h")
+have_func("rb_ractor_local_storage_value_newkey")
+
+is_wasi = /wasi/ =~ MakeMakefile::RbConfig::CONFIG["platform"]
+# `ok` can be `true`, `false`, or `nil`:
+# * `true` : Required headers and functions available, proceed regular build.
+# * `false`: Required headers or functions not available, abort build.
+# * `nil` : Unsupported compilation target, generate dummy Makefile.
+#
+# Skip building io/console on WASI, as it does not support termios.h.
+ok = true if (RUBY_ENGINE == "ruby" && !is_wasi) || RUBY_ENGINE == "truffleruby"
+hdr = nil
+case
+when macro_defined?("_WIN32", "")
+ # rb_w32_map_errno: 1.8.7
+ vk_header = File.exist?("#$srcdir/win32_vk.list") ? "chksum" : "inc"
+ vk_header = "#{'{$(srcdir)}' if $nmake == ?m}win32_vk.#{vk_header}"
+when hdr = %w"termios.h termio.h".find {|h| have_header(h)}
+ have_func("cfmakeraw", hdr)
+when have_header(hdr = "sgtty.h")
+ %w"stty gtty".each {|f| have_func(f, hdr)}
+else
+ ok = false
+end if ok
+case ok
+when true
+ have_header("sys/ioctl.h") if hdr
+ # rb_check_hash_type: 1.9.3
+ # rb_io_get_write_io: 1.9.1
+ # rb_cloexec_open: 2.0.0
+ # rb_funcallv: 2.1.0
+ # RARRAY_CONST_PTR: 2.1.0
+ # rb_sym2str: 2.2.0
+ if have_macro("HAVE_RUBY_FIBER_SCHEDULER_H")
+ $defs << "-D""HAVE_RB_IO_WAIT=1"
+ elsif have_func("rb_scheduler_timeout") # 3.0
+ have_func("rb_io_wait")
+ end
+ have_func("ttyname_r") or have_func("ttyname")
+ create_makefile("io/console") {|conf|
+ conf << "\n""VK_HEADER = #{vk_header}\n"
+ }
+when nil
+ File.write("Makefile", dummy_makefile($srcdir).join(""))
+end