[ox/std] Add option for building trace hook in shared library

deps/ox/src/ox/std/CMakeLists.txt

@@ -1,3 +1,15 @@
+if(OX_USE_STDLIB AND OX_ENABLE_TRACEHOOK)
+	add_library(
+		OxTraceHook SHARED
+			tracehook.cpp
+	)
+else()
+	add_library(
+		OxTraceHook
+			tracehook.cpp
+	)
+endif()
+
 add_library(
 	OxStd
 		assert.cpp
@@ -26,7 +38,7 @@ if(NOT OX_BARE_METAL)
 	)
 endif()
 
-if(${OX_USE_STDLIB})
+if(OX_USE_STDLIB)
 	target_compile_definitions(
 		OxStd PUBLIC
 			OX_USE_STDLIB
@@ -36,6 +48,7 @@ endif()
 target_link_libraries(
 	OxStd PUBLIC
 		$<$<CXX_COMPILER_ID:GNU>:gcc>
+		OxTraceHook
 )
 
 install(
@@ -70,7 +83,7 @@ install(
 		include/ox/std
 )
 
-install(TARGETS OxStd
+install(TARGETS OxStd OxTraceHook
         LIBRARY DESTINATION lib/ox
         ARCHIVE DESTINATION lib/ox
 )

deps/ox/src/ox/std/trace.cpp

@@ -14,9 +14,7 @@
 #include "trace.hpp"
 
 extern "C"
-void oxTraceHook([[maybe_unused]] const char *file, [[maybe_unused]] int line,
-                 [[maybe_unused]] const char *ch, [[maybe_unused]] const char *msg) {
-}
+void oxTraceHook(const char *file, int line, const char *ch, const char *msg); 
 
 namespace ox::trace {
 

deps/ox/src/ox/std/tracehook.cpp

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2015 - 2021 gary@drinkingtea.net
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+extern "C"
+void oxTraceHook([[maybe_unused]] const char *file, [[maybe_unused]] int line,
+                 [[maybe_unused]] const char *ch, [[maybe_unused]] const char *msg) {
+}
+