Supports static linking of extensions and encodings again.

Fixes --with-static-linked-ext.

Patch by Google Inc. [ruby-core:45073].

* Makefile.in (ENCOBJS, EXTOBJS): New variables to specify static
  linked libraries. Also reintroduces extinit.o, introduces encinit.o
  introduces encinit.o

* common.mk: Builds static libraries rather than shared objects if
  specified.

* configure.in (LD): new substitution. 
  Avoids PIE if s

* enc/depend: Supports static linked libraries
  (libencs, libenc, libtrans): New target.

* enc/encinit.c.erb: new template to generate the initialization of
  statically linked encodings.

* enc/make_encmake.rb (--module): new flag to specify whether static
  or dynamic.

* transcode_data.h (TRANS_INIT): New macro to get rid of the name
  collision of encoding initializers and transcoder initializers.

* ext/extmk.rb: Fixes the behavior on $extstatic is true.

* lib/mkmf.rb (clean-static): new target to clean up static linked
  libraries.

* ruby.c (process_options): New initializes statically linked
  encodings here.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35662 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 62 insertions, 0 deletions

diff --git a/enc/make_encmake.rb b/enc/make_encmake.rb
index ed3680313f..291774e60c 100755
--- a/enc/make_encmake.rb
+++ b/enc/make_encmake.rb
@@ -15,6 +15,7 @@ BUILTIN_ENCS = []
 BUILTIN_TRANSES = []
 ENC_PATTERNS = []
 NOENC_PATTERNS = []
+module_type = :dynamic
 
 until ARGV.empty?
   case ARGV[0]
@@ -30,11 +31,57 @@ until ARGV.empty?
   when /\A--no-encs=/
     NOENC_PATTERNS.concat $'.split
     ARGV.shift
+  when /\A--module$/
+    ARGV.shift
+  when /\A--modulestatic$/
+    module_type = :static
+    ARGV.shift
   else
     break
   end
 end
 
+ALPHANUMERIC_ORDER = proc {|e| e.scan(/(\d+)|(\D+)/).map {|n,a| a||[n.size,n.to_i]}.flatten}
+def target_encodings
+  encs = Dir.open($srcdir) {|d| d.grep(/.+\.c\z/)} - BUILTIN_ENCS - ["mktable.c"]
+  encs.each {|e| e.chomp!(".c")}
+  encs.reject! {|e| !ENC_PATTERNS.any? {|p| File.fnmatch?(p, e)}} if !ENC_PATTERNS.empty?
+  encs.reject! {|e| NOENC_PATTERNS.any? {|p| File.fnmatch?(p, e)}}
+  encs = encs.sort_by(&ALPHANUMERIC_ORDER)
+  encs.unshift(encs.delete("encdb"))
+  return encs
+end
+
+def target_transcoders
+  atrans = []
+  trans = Dir.open($srcdir+"/trans") {|d|
+    d.select {|e|
+      if e.chomp!('.trans')
+        atrans << e
+        true
+      elsif e.chomp!('.c')
+        true
+      end
+    }
+  }
+  trans -= BUILTIN_TRANSES
+  atrans -= BUILTIN_TRANSES
+  trans.uniq!
+  atrans = atrans.sort_by(&ALPHANUMERIC_ORDER)
+  trans = trans.sort_by(&ALPHANUMERIC_ORDER)
+  trans.unshift(trans.delete("transdb"))
+  trans.compact!
+  trans |= atrans
+  trans.map! {|e| "trans/#{e}"}
+
+  return atrans, trans
+end
+
+# Constants that "depend" needs.
+MODULE_TYPE = module_type
+ENCS = target_encodings
+ATRANS, TRANS = target_transcoders
+
 if File.exist?(depend = File.join($srcdir, "depend"))
   erb = ERB.new(File.read(depend), nil, '%')
   erb.filename = depend
@@ -48,3 +95,18 @@ mkin.gsub!(/@(#{CONFIG.keys.join('|')})@/) {CONFIG[$1]}
 open(ARGV[0], 'wb') {|f|
   f.puts mkin, dep
 }
+if MODULE_TYPE == :static
+  erb = ERB.new(File.read(File.join($srcdir, "encinit.c.erb")), nil, '%-')
+  erb.filename = "enc/encinit.c.cerb"
+  tmp = erb.result(binding)
+  begin
+    Dir.mkdir 'enc'
+  rescue Errno::EEXIST
+  end
+  File.open("enc/encinit.c", "w") {|f|
+    f.puts "/* Automatically generated from enc/encinit.c.erb"
+    f.puts " * Do not edit."
+    f.puts " */"
+    f.puts tmp
+  }
+end