From 27c9edd889c746e818dc3aa55971d9cd6d8595a7 Mon Sep 17 00:00:00 2001
From: mwturvey <michael.w.turvey@intel.com>
Date: Thu, 16 Mar 2017 10:32:18 -0700
Subject: Manual registration on Windows

---
 include/libsurvive/survive.h | 46 ++++----------------------------------------
 src/survive.c                | 22 ++++++++++-----------
 2 files changed, 15 insertions(+), 53 deletions(-)

diff --git a/include/libsurvive/survive.h b/include/libsurvive/survive.h
index deb91c4..3bc3b33 100644
--- a/include/libsurvive/survive.h
+++ b/include/libsurvive/survive.h
@@ -136,50 +136,12 @@ void survive_default_angle_process( SurviveObject * so, int sensor_id, int acode
 
 ////////////////////// Survive Drivers ////////////////////////////
 
-// The following macros were taken from StackOverflow here: 
-// http://stackoverflow.com/questions/1113409/attribute-constructor-equivalent-in-vc
-// The author, Joe Lowe explicitly released this code into the public domain as part of his post.
-#ifdef __cplusplus
-#define INITIALIZER(f) \
-        static void f(void); \
-        struct f##_t_ { f##_t_(void) { f(); } }; static f##_t_ f##_; \
-        static void f(void)
-#elif defined(_MSC_VER)
-#pragma section(".CRT$XCU",read)
-#define INITIALIZER2_(f,p) \
-        __declspec(dllexport)  void f(void); \
-        __declspec(allocate(".CRT$XCU")) void (*f##_)(void) = f; \
-		volatile static void * LTRegistrationPinnerFor##f = &##f; \
-        __pragma(comment(linker,"/include:" p #f "_")) \
-         void f(void)
-#ifdef _WIN64
-#define INITIALIZER(f) INITIALIZER2_(f,"")
-#else
-#define INITIALIZER(f) INITIALIZER2_(f,"_")
-#endif
+#ifdef _WIN32
+#define REGISTER_LINKTIME( func )
 #else
-#define INITIALIZER(f) \
-        static void f(void) __attribute__((constructor)); \
-        static void f(void)
-#endif
-// End macros from StackOverflow.
-
-//static void foo(void)
-//{
-//	int a=0;
-//}
-//
-//INITIALIZER(foo);
-
-
-void   RegisterDriver( const char * name, void * data );
-
 #define REGISTER_LINKTIME( func ) \
-	__declspec(dllexport) void LTRegister##func() { RegisterDriver( #func, &func ); } \
-	INITIALIZER(LTRegister##func) 
-	
-
-	//void __attribute__((constructor)) LTRegister##func() { RegisterDriver(#func, &func); }
+	void __attribute__((constructor)) LTRegister##func() { RegisterDriver(#func, &func); }
+#endif
 
 
 
diff --git a/src/survive.c b/src/survive.c
index c2b2940..d7aa691 100755
--- a/src/survive.c
+++ b/src/survive.c
@@ -47,17 +47,17 @@ SurviveContext * survive_init( int headless )
 		did_runtime_symnum = 1;
 	}
 #endif
-//#ifdef MANUAL_REGISTRATION
-//	// note: this manual registration is currently only in use on builds using Visual Studio.
-//
-//#define MANUAL_DRIVER_REGISTRATION(func) int func( SurviveObject * so, PoserData * pd ); RegisterDriver( #func, &func);
-//
-//	MANUAL_DRIVER_REGISTRATION(PoserCharlesSlow)
-//	MANUAL_DRIVER_REGISTRATION(PoserDaveOrtho)
-//	MANUAL_DRIVER_REGISTRATION(PoserDummy)
-//	MANUAL_DRIVER_REGISTRATION(DriverRegHTCVive)
-//
-//#endif
+#ifdef MANUAL_REGISTRATION
+	// note: this manual registration is currently only in use on builds using Visual Studio.
+
+#define MANUAL_DRIVER_REGISTRATION(func) int func( SurviveObject * so, PoserData * pd ); RegisterDriver( #func, &func);
+
+	MANUAL_DRIVER_REGISTRATION(PoserCharlesSlow)
+	MANUAL_DRIVER_REGISTRATION(PoserDaveOrtho)
+	MANUAL_DRIVER_REGISTRATION(PoserDummy)
+	MANUAL_DRIVER_REGISTRATION(DriverRegHTCVive)
+
+#endif
 
 	int r = 0;
 	int i = 0;
-- 
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