Patch to compile Ruby Enterprise Edition 1.8.7 for glibc >= 2.14

ree-1.8.7-glibc+2.14.patch

diff --git a/distro/google-perftools-1.7/src/tcmalloc.cc b/distro/google-perftools-1.7/src/tcmalloc.cc
index 8d94d20..0769425 100644
--- a/distro/google-perftools-1.7/src/tcmalloc.cc
+++ b/distro/google-perftools-1.7/src/tcmalloc.cc
@@ -137,6 +137,13 @@
 # define WIN32_DO_PATCHING 1
 #endif
 
+// GLibc 2.14+ requires the hook functions be declared volatile, based on the value of the
+// define __MALLOC_HOOK_VOLATILE. For compatibility with older/non-GLibc implementations,
+// provide an empty definition.
+#if !defined(__MALLOC_HOOK_VOLATILE)
+#define __MALLOC_HOOK_VOLATILE
+#endif
+
 using STL_NAMESPACE::max;
 using STL_NAMESPACE::numeric_limits;
 using STL_NAMESPACE::vector;
@@ -1669,5 +1676,5 @@ static void *MemalignOverride(size_t align, size_t size, const void *caller)
   MallocHook::InvokeNewHook(result, size);
   return result;
 }
-void *(*__memalign_hook)(size_t, size_t, const void *) = MemalignOverride;
+void *(*__MALLOC_HOOK_VOLATILE __memalign_hook)(size_t, size_t, const void *) = MemalignOverride;
 #endif  // #ifndef TCMALLOC_FOR_DEBUGALLOCATION
diff --git a/ext/dl/depend b/ext/dl/depend
index fba3df7..0830ffa 100644
--- a/ext/dl/depend
+++ b/ext/dl/depend
@@ -32,15 +32,15 @@ handle.o: dl.h
 
 call.func: $(srcdir)/mkcall.rb ./dlconfig.rb
 	@echo "Generating call.func"
-	@$(RUBY) $(srcdir)/mkcall.rb > $@
+	@$(RUBY) $(srcdir)/mkcall.rb | tee $@
 
 callback.func: $(srcdir)/mkcallback.rb ./dlconfig.rb
 	@echo "Generating callback.func"
-	@$(RUBY) $(srcdir)/mkcallback.rb > $@
+	@$(RUBY) $(srcdir)/mkcallback.rb | tee $@
 
 cbtable.func: $(srcdir)/mkcbtable.rb ./dlconfig.rb
 	@echo "Generating cbtable.func"
-	@$(RUBY) $(srcdir)/mkcbtable.rb > $@
+	@$(RUBY) $(srcdir)/mkcbtable.rb | tee $@
 
 debug:
 	$(MAKE) CPPFLAGS="$(CPPFLAGS) -DDEBUG"