* common.mk (encs): new target to compile external encodings.

* enc/Makefile.in: became a serb template.

* enc/make_encmake.rb: creates enc.mk from enc/Makefile.in using serb.

* lib/mkmf.rb (relative_from): moved from ext/extmk.rb.

* lib/mkmf.rb ($extmk): true if under to top source directory, not
  only ext.

* lib/mkmf.rb (depend_rules): extracted from create_makefile.

* tool/serb.rb (serb): splitted from tool/compile_prelude.rb.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14267 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 23 insertions, 0 deletions

diff --git a/enc/make_encmake.rb b/enc/make_encmake.rb
new file mode 100644
index 0000000000..fe75b2778d
--- /dev/null
+++ b/enc/make_encmake.rb
@@ -0,0 +1,23 @@
+#! ./miniruby
+
+dir = File.expand_path("../..", __FILE__)
+$:.unshift(File.join(dir, "lib"))
+$:.unshift(dir)
+File.directory?("enc") || File.mkdir("enc")
+$:.unshift(".")
+require 'mkmf'
+require 'tool/serb'
+
+encdir = File.join($top_srcdir, "enc")
+
+encs = Dir.open(encdir) {|d| d.grep(/.+\.c\z/)}
+encs -= CONFIG["BUILTIN_ENCS"].split
+encs.each {|e| e.chomp!(".c")}
+mkin = File.read(File.join(encdir, "Makefile.in"))
+mkin.gsub!(/^\#!\# ?/, '')
+mkin.gsub!(/@(#{RbConfig::MAKEFILE_CONFIG.keys.join('|')})@/) {CONFIG[$1]}
+tmp = ''
+eval(serb(mkin, 'tmp'))
+open(ARGV[0], 'w') {|f|
+  f.puts tmp
+}