V = 0
V0 = $(V:0=)
Q1 = $(V:1=)
Q = $(Q1:0=@)
ECHO1 = $(V:1=@:)
ECHO = $(ECHO1:0=@echo)

<%
srcdir = miniruby = script_args = nil
opt = OptionParser.new do |o|
  o.on('--srcdir=SRCDIR') {|v| srcdir = v}
  o.on('--miniruby=MINIRUBY') {|v| miniruby = v}
  o.on('--script-args=MINIRUBY') {|v| script_args = v}
  o.order!(ARGV)
end
srcdir ||= File.dirname(File.dirname(__FILE__))
exts = {
  exts: [
    "--extstatic $(EXTSTATIC)",
    Dir.glob("ext/**/extconf.rb", base: srcdir).map do |d|
      d[%r[\Aext/[^/]+]]
    end.uniq
  ],
  gems: [
    "--no-extstatic",
    Dir.glob(".bundle/gems/**/extconf.rb", base: srcdir).grep_v(/test/) do |d|
      d[%r[\A\.bundle/gems/[^/]+]]
    end.uniq
  ],
}
%>
MINIRUBY = <%=miniruby%>
SCRIPT_ARGS = <%=script_args.gsub("#", "\\#").gsub(/\A|[\s"']\K--jobserver-auth=[^\s'"]*/, "")%>
EXTMK_ARGS = $(SCRIPT_ARGS) --gnumake=$(gnumake) --extflags="$(EXTLDFLAGS)" \
	   --make-flags="MINIRUBY='$(MINIRUBY)'"

all: exts gems
exts:
gems:

% exts.each do |t, (o, dirs)|
%   dirs.each do |d|
<%=t%>: <%=d%>/exts.mk
<%=d%>/exts.mk: FORCE
	$(Q)$(MINIRUBY) $(srcdir)/ext/extmk.rb --make='$(MAKE)' \
		--command-output=$@ $(EXTMK_ARGS) <%=o%> \
		-- configure $(@D)
%   end
% end

.PHONY: FORCE all exts gems
FORCE: