Added function is_running_on_haiku(), which returns at runtime whether we're running under Haiku.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10783 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/app/AppMisc.h

@@ -41,6 +41,8 @@ status_t get_app_ref(entry_ref *ref, bool traverse = true);
 team_id current_team();
 thread_id main_thread_for(team_id team);
 
+bool is_running_on_haiku();
+
 } // namespace BPrivate
 
 // _get_object_token_

src/kits/app/AppMisc.cpp

@@ -25,6 +25,7 @@
 //------------------------------------------------------------------------------
 
 #include <string.h>
+#include <sys/utsname.h>
 
 #include <AppMisc.h>
 #include <Entry.h>
@@ -128,5 +129,22 @@ main_thread_for(team_id team)
 	return thread;
 }
 
+// is_running_on_haiku
+/*!	Returns whether we're running under Haiku natively.
+
+	This is a runtime check for components compiled only once for both
+	BeOS and Haiku and nevertheless need to behave differently on the two
+	systems, like the registrar, which uses another MIME database directory
+	under BeOS.
+
+	\return \c true, if we're running under Haiku, \c false otherwise.
+*/
+bool
+is_running_on_haiku()
+{
+	struct utsname info;
+	return (uname(&info) == 0 && strcmp(info.sysname, "Haiku") == 0);
+}
+
 } // namespace BPrivate