* ext/fiddle/handle.c: Make Fiddle independent of DL, copy DL::Handle

  to Fiddle::Handle.
* ext/fiddle/pointer.c: Make Fiddle independent of DL, copy
  DL::Pointer to Fiddle::Pointer.
* test/fiddle/test_func.rb: relevent tests
* test/fiddle/test_handle.rb: ditto
* test/fiddle/test_pointer.rb: ditto
* ext/dl/lib/dl/struct.rb: use Fiddle::Pointer if available
* ext/fiddle/extconf.rb: check for dlfcn.h
* ext/fiddle/fiddle.c: add constants for sizeof() things
* ext/fiddle/fiddle.h: include dlfcn.h
* ext/fiddle/function.c: expose a C function for creating new
  Fiddle::Function objects.
* ext/fiddle/lib/fiddle.rb: include constants for dl backwards compat
* ext/fiddle/lib/fiddle/function.rb: read the pointer from the
  function for dl backwards compat.
* test/dl/test_callback.rb: check the addresses of the pointers rather
  than their types.
* test/fiddle/helper.rb: remove dependency on dl
* test/fiddle/test_closure.rb: ditto
* test/fiddle/test_fiddle.rb: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37907 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 14 insertions, 0 deletions

diff --git a/ext/fiddle/extconf.rb b/ext/fiddle/extconf.rb
index a9cdcc251f..9b9803f65b 100644
--- a/ext/fiddle/extconf.rb
+++ b/ext/fiddle/extconf.rb
@@ -19,6 +19,20 @@ end
 
 have_header 'sys/mman.h'
 
+if have_header "dlfcn.h"
+  have_library "dl"
+
+  %w{ dlopen dlclose dlsym }.each do |func|
+    abort "missing function #{func}" unless have_func(func)
+  end
+
+  have_func "dlerror"
+elsif have_header "windows.h"
+  %w{ LoadLibrary FreeLibrary GetProcAddress }.each do |func|
+    abort "missing function #{func}" unless have_func(func)
+  end
+end
+
 config = File.read(RbConfig.expand(File.join($arch_hdrdir, "ruby/config.h")))
 types = {"SIZE_T"=>"SSIZE_T", "PTRDIFF_T"=>nil, "INTPTR_T"=>nil}
 types.each do |type, signed|