* ext/tk: merge tcltklib for Ruby/Tk installation control

* ext/tcltklib: remove


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7826 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 343 insertions, 3 deletions

diff --git a/ext/tk/extconf.rb b/ext/tk/extconf.rb
index 8b10353d1a..48c777e0d5 100644
--- a/ext/tk/extconf.rb
+++ b/ext/tk/extconf.rb
@@ -1,4 +1,344 @@
+# extconf.rb for tcltklib
+
 require 'mkmf'
-$preload = ["tcltklib"]
-($INSTALLFILES||=[]) << ["lib/tkextlib/SUPPORT_STATUS", "$(RUBYLIBDIR)", "lib"]
-create_makefile("tkutil")
+
+is_win32 = (/mswin32|mingw|cygwin|bccwin32/ =~ RUBY_PLATFORM)
+is_macosx = (/darwin/ =~ RUBY_PLATFORM)
+
+mac_need_framework = 
+  is_macosx &&
+  enable_config("mac-tcltk-framework", false) &&
+  FileTest.directory?("/Library/Frameworks/Tcl.framework/") &&
+  FileTest.directory?("/Library/Frameworks/Tk.framework/")
+
+unless is_win32
+  have_library("nsl", "t_open")
+  have_library("socket", "socket")
+  have_library("dl", "dlopen")
+  have_library("m", "log") 
+end
+
+dir_config("tk")
+dir_config("tcl")
+dir_config("X11")
+
+tklib = with_config("tklib")
+tcllib = with_config("tcllib")
+stubs = enable_config("tcltk_stubs") || with_config("tcltk_stubs")
+
+def find_tcl(tcllib, stubs)
+  paths = ["/usr/local/lib", "/usr/pkg/lib", "/usr/lib"]
+  if stubs
+    func = "Tcl_InitStubs"
+    lib = "tclstub"
+  else
+    func = "Tcl_FindExecutable"
+    lib = "tcl"
+  end
+  if tcllib
+    find_library(tcllib, func, *paths)
+  elsif find_library(lib, func, *paths)
+    true
+  else
+    %w[8.5 8.4 8.3 8.2 8.1 8.0 7.6].find { |ver|
+      find_library("#{lib}#{ver}", func, *paths) or
+        find_library("#{lib}#{ver.delete('.')}", func, *paths) or
+        find_library("tcl#{ver}", func, *paths) or
+        find_library("tcl#{ver.delete('.')}", func, *paths)
+    }
+  end
+end
+
+def find_tk(tklib, stubs)
+  paths = ["/usr/local/lib", "/usr/pkg/lib", "/usr/lib"]
+  if stubs
+    func = "Tk_InitStubs"
+    lib = "tkstub"
+  else
+    func = "Tk_Init"
+    lib = "tk"
+  end
+  if tklib
+    find_library(tklib, func, *paths)
+  elsif find_library(lib, func, *paths)
+    true
+  else
+    %w[8.5 8.4 8.3 8.2 8.1 8.0 4.2].find { |ver|
+      find_library("#{lib}#{ver}", func, *paths) or
+        find_library("#{lib}#{ver.delete('.')}", func, *paths) or
+        find_library("tk#{ver}", func, *paths) or
+        find_library("tk#{ver.delete('.')}", func, *paths)
+    }
+  end
+end
+
+def pthread_check()
+  tcl_major_ver = nil
+  tcl_minor_ver = nil
+
+  # Is tcl-thread given by user ?
+  case enable_config("tcl-thread")
+  when true
+    $CPPFLAGS += ' -DFORCE_TCL_THREAD=1'
+    tcl_enable_thread = true
+  when false
+    $CPPFLAGS += ' -DFORCE_TCL_THREAD=1'
+    tcl_enable_thread = false
+  else
+    tcl_enable_thread = nil
+  end
+
+  if (tclConfig = with_config("tclConfig-file"))
+    if tcl_enable_thread == true
+      puts("Warning: --with-tclConfig-file option is ignored, because --enable-tcl-thread option is given.")
+    elsif tcl_enable_thread == false
+      puts("Warning: --with-tclConfig-file option is ignored, because --disable-tcl-thread option is given.")
+    else
+      # tcl-thread is unknown and tclConfig.sh is given
+      begin
+        open(tclConfig, "r") do |cfg|
+          while line = cfg.gets()
+            if line =~ /^\s*TCL_THREADS=(0|1)/
+              tcl_enable_thread = ($1 == "1")
+              break
+            end
+
+            if line =~ /^\s*TCL_MAJOR_VERSION=("|')(\d+)\1/
+              tcl_major_ver = $2
+              if tcl_major_ver =~ /^[1-7]$/
+                tcl_enable_thread = false
+                break
+              end
+              if tcl_major_ver == "8" && tcl_minor_ver == "0"
+                tcl_enable_thread = false
+                break
+              end
+            end
+
+            if line =~ /^\s*TCL_MINOR_VERSION=("|')(\d+)\1/
+              tcl_minor_ver = $2
+              if tcl_major_ver == "8" && tcl_minor_ver == "0"
+                tcl_enable_thread = false
+                break
+              end
+            end
+          end
+        end
+
+        if tcl_enable_thread == nil
+          # not find definition
+          if tcl_major_ver
+            puts("Warning: '#{tclConfig}' doesn't include TCL_THREADS definition.")
+          else
+            puts("Warning: '#{tclConfig}' may not be a tclConfig file.")
+          end
+          tclConfig = false
+        end
+      rescue Exception
+        puts("Warning: fail to read '#{tclConfig}'!! --> ignore the file")
+        tclConfig = false
+      end
+    end
+  end
+
+  if tcl_enable_thread == nil && !tclConfig
+    # tcl-thread is unknown and tclConfig is unavailable
+    begin
+      try_run_available = try_run("int main() { exit(0); }")
+    rescue Exception
+      # cannot try_run. Is CROSS-COMPILE environment?
+      puts(%Q'\
+*****************************************************************************
+**
+** PTHREAD SUPPORT CHECK WARNING: 
+**
+**   We cannot check the consistency of pthread support between Ruby 
+**   and Tcl/Tk library on your environment (do coss-compile?). If the 
+**   consistency is not kept, some memory troubles (e.g. "Hang-up" or 
+**   "Segmentation Fault") may bother you. We strongly recommend you to  
+**   check the consistency by your own hand.
+**
+*****************************************************************************
+')
+      return true
+    end
+  end
+
+  if tcl_enable_thread == nil
+    # tcl-thread is unknown
+    if try_run(<<EOF)
+#include <tcl.h>
+int main() { 
+   Tcl_Interp *ip;
+   ip = Tcl_CreateInterp();
+   exit((Tcl_Eval(ip, "set tcl_platform(threaded)") == TCL_OK)? 0: 1);
+}
+EOF
+      tcl_enable_thread = true
+    elsif try_run(<<EOF)
+#include <tcl.h>
+static Tcl_ThreadDataKey dataKey;
+int main() { exit((Tcl_GetThreadData(&dataKey, 1) == dataKey)? 1: 0); }
+EOF
+      tcl_enable_thread = true
+    else
+      tcl_enable_thread = false
+    end
+  end
+
+  # check pthread mode
+  if (macro_defined?('HAVE_LIBPTHREAD', '#include "ruby.h"'))
+    # ruby -> enable
+    unless tcl_enable_thread
+      # ruby -> enable && tcl -> disable
+      puts(%Q'\
+*****************************************************************************
+**
+** PTHREAD SUPPORT MODE WARNING: 
+**
+**   Ruby is compiled with --enable-pthread, but your Tcl/Tk libraries
+**   seems to be compiled without "pthread support". Although You can 
+**   create tcltklib library, this combination may cause memory trouble 
+**   (e.g. "Hang-up" or "Segmentation Fault"). If you have no reason you
+**   must have to keep current pthread support status, we recommend you 
+**   to make both or neither libraries to support pthread.
+**
+**   If you want change the status of pthread support, please recompile 
+**   Ruby without "--enable-pthread" configure option or recompile Tcl/Tk 
+**   with "--enable-threads" configure option (if your Tcl/Tk is later 
+**   than  or equal to Tcl/Tk8.1).
+**
+*****************************************************************************
+')
+    end
+
+    # ruby -> enable && tcl -> enable/disable
+    if tcl_enable_thread
+      $CPPFLAGS += ' -DWITH_TCL_ENABLE_THREAD=1'
+    else
+      $CPPFLAGS += ' -DWITH_TCL_ENABLE_THREAD=0'
+    end
+
+    return true
+
+  else
+    # ruby -> disable
+    if tcl_enable_thread
+      # ruby -> disable && tcl -> enable
+      puts(%Q'\
+*****************************************************************************
+**
+** PTHREAD SUPPORT MODE ERRROR: 
+**
+**   Ruby is not compiled with --enable-pthread, but your Tcl/Tk 
+**   libararies seems to be compiled with "pthread support". This 
+**   combination possibly cause "Hang-up" or "Segmentation Fault" 
+**   frequently when Ruby/Tk is working. We NEVER recommend you to 
+**   create the library under such combination of pthread support. 
+**
+**   Please recompile Ruby with "--enable-pthread" configure option 
+**   or recompile Tcl/Tk with "--disable-threads" configure option.
+**
+*****************************************************************************
+')
+      $CPPFLAGS += ' -DWITH_TCL_ENABLE_THREAD=1'
+      return false
+    else
+      # ruby -> disable && tcl -> disable
+      $CPPFLAGS += ' -DWITH_TCL_ENABLE_THREAD=0'
+      return true
+    end
+  end
+end
+
+if mac_need_framework || 
+   (have_header("tcl.h") && have_header("tk.h") &&
+    (is_win32 || find_library("X11", "XOpenDisplay",
+      "/usr/X11/lib", "/usr/lib/X11", "/usr/X11R6/lib", "/usr/openwin/lib")) &&
+    find_tcl(tcllib, stubs) &&
+    find_tk(tklib, stubs))
+  $CPPFLAGS += ' -DUSE_TCL_STUBS -DUSE_TK_STUBS' if stubs
+  $CPPFLAGS += ' -D_WIN32' if /cygwin/ =~ RUBY_PLATFORM
+
+  if mac_need_framework
+    $CPPFLAGS += ' -I/Library/Frameworks/Tcl.framework/headers -I/Library/Frameworks/Tk.framework/Headers'
+    $LDFLAGS += ' -framework Tk -framework Tcl'
+  end
+
+  if stubs or pthread_check
+    # create Makefile
+
+    # backup
+    if $INSTALLFILES
+      installfiles_bup = $INSTALLFILES.dup
+    else
+      installfiles_bup = nil
+      $INSTALLFILES = []
+    end
+
+    cleanings_bup = CLEANINGS.dup
+
+    if $objs
+      objs_bup = $objs.dup
+    else
+      objs_bup = nil
+      $objs = []
+    end
+
+    # for SUPPORT_STATUS
+    $INSTALLFILES << ["lib/tkextlib/SUPPORT_STATUS", "$(RUBYLIBDIR)", "lib"]
+
+    # for tcltklib.so
+    $objs << "stubs.o" << "tcltklib.o"
+
+    # for tkutil.so
+    mk_tkutil = "\n\n"
+    mk_tkutil << "OBJS2 = tkutil.#{$OBJEXT}\n"
+    mk_tkutil << "TARGET2 = tkutil\n"
+    mk_tkutil << "DLLIB2 = $(TARGET2).#{CONFIG['DLEXT']}\n"
+    mk_tkutil << "STATIC_LIB2 = $(TARGET2).#{$LIBEXT}\n"
+    mk_tkutil << "\n"
+    mk_tkutil << 'CLEANLIBS2 = "$(TARGET2).{lib,exp,il?,tds,map}" $(DLLIB2)'
+    mk_tkutil << "\n\n"
+    mk_tkutil << "all:  $(DLLIB2)\n"
+    mk_tkutil << "static:  $(STATIC_LIB2)\n"
+    mk_tkutil << "\n"
+
+    mk_tkutil << CLEANINGS.sub(/\$\(CLEANLIBS\)/, "$(CLEANLIBS) $(CLEANLIBS2)")
+    mk_tkutil << "\n\n"
+
+    mk_tkutil << "$(DLLIB2): $(OBJS2)\n\t"
+    mk_tkutil << "@-$(RM) $@\n\t"
+    mk_tkutil << "@-$(RM) $(TARGET2).lib\n\t" if $mswin
+
+    LINK_SO2 = if CONFIG["DLEXT"] == $OBJEXT
+                 "ld $(DLDFLAGS) -r -o $(DLLIB2) $(OBJS2)\n"
+               else
+                 "$(LDSHARED) $(DLDFLAGS) $(LIBPATH) #{OUTFLAG}$(DLLIB2) " \
+                 "$(OBJS2) $(LOCAL_LIBS) $(LIBS)"
+               end
+    mk_tkutil << LINK_SO2
+
+    mk_tkutil << "\n\n"
+    mk_tkutil << "$(STATIC_LIB2): $(OBJS2)\n\t"
+    mk_tkutil << "$(AR) #{config_string('ARFLAGS') || 'cru '}$@ $(OBJS2)"
+    if ranlib = config_string('RANLIB')
+      mk_tkutil << "\n\t@-#{ranlib} $(DLLIB2) 2> /dev/null || true"
+    end
+    mk_tkutil << "\n\n\n"
+
+    mk_tkutil << "install: $(RUBYARCHDIR)/$(DLLIB2)\n"
+    mk_tkutil << "$(RUBYARCHDIR)/$(DLLIB2): $(DLLIB2) $(RUBYARCHDIR)\n"
+    mk_tkutil << "\t@$(INSTALL_PROG) $(DLLIB2) $(RUBYARCHDIR)\n"
+
+    CLEANINGS.replace(mk_tkutil)
+
+    # create
+    create_makefile("tcltklib")
+
+    # reset
+    $INSTALLFILES = installfiles_bup
+    CLEANINGS.replace(cleanings_bup)
+    $objs = objs_bup
+  end
+end