Imports Ruby's port to NativeClient (a.k.a NaCl).

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

* configure.in (RUBY_NACL): New M4 func to configure variables for
  NaCl.
  (RUBY_NACL_CHECK_PEPPER_TYPES): New M4 func to check the old names
  of Pepper interface types.
  (BTESTRUBY): New variable to specify which ruby should be run on
  "make btest". NaCl can run the built binary by sel_ldr, but it need
  rbconfig.rb. So this variable is distinguished from $MINIRUBY.
  
* thread_pthread.c: Disabled some features on NaCl.

* io.c: ditto.

* process.c: ditto.

* signal.c: ditto.

* file.c: ditto.

* missing/flock.c: ditto.

* nacl/pepper_main.c: An example implementation of Pepper application
  that embeds Ruby.

* nacl/example.html: An example of web page that uses the Pepper
  application.

* nacl/nacl-config.rb: Detects variants of NaCl SDK.

* nacl/GNUmakefile.in: Makefile template for NaCl specific build
  process.

* nacl/package.rb: script for packaging a NaCl-Ruby embedding
  application. 

* nacl/reate_nmf.rb: Wrapper script of create_nmf.py

* dln.c (dln_load): Added a hack to call on NaCl.

* util.c (ruby_getcwd): Path to the current directort is not available
  on NaCl.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35672 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 1 deletions

diff --git a/thread.c b/thread.c
index 27504e5e2e..ccf350eee6 100644
--- a/thread.c
+++ b/thread.c
@@ -2420,6 +2420,11 @@ rb_fd_dup(rb_fdset_t *dst, const rb_fdset_t *src)
     memcpy(dst->fdset, src->fdset, size);
 }
 
+#ifdef __native_client__
+int select(int nfds, fd_set *readfds, fd_set *writefds,
+           fd_set *exceptfds, struct timeval *timeout);
+#endif
+
 int
 rb_fd_select(int n, rb_fdset_t *readfds, rb_fdset_t *writefds, rb_fdset_t *exceptfds, struct timeval *timeout)
 {
@@ -3298,7 +3303,9 @@ mutex_free(void *ptr)
 	    if (err) rb_bug("%s", err);
 	}
 	native_mutex_destroy(&mutex->lock);
+#ifdef HAVE_PTHREAD_COND_INITIALIZE
 	native_cond_destroy(&mutex->cond);
+#endif
     }
     ruby_xfree(ptr);
 }
@@ -3333,7 +3340,9 @@ mutex_alloc(VALUE klass)
 
     obj = TypedData_Make_Struct(klass, rb_mutex_t, &mutex_data_type, mutex);
     native_mutex_initialize(&mutex->lock);
+#ifdef HAVE_PTHREAD_COND_INITIALIZE
     native_cond_initialize(&mutex->cond, RB_CONDATTR_CLOCK_MONOTONIC);
+#endif
     return obj;
 }
 
@@ -4781,4 +4790,3 @@ rb_reset_coverages(void)
     GET_VM()->coverages = Qfalse;
     rb_remove_event_hook(update_coverage);
 }
-