diff --git a/aegisub/libaegisub/include/libaegisub/log.h b/aegisub/libaegisub/include/libaegisub/log.h
index 7e22747fb..7c579b752 100644
--- a/aegisub/libaegisub/include/libaegisub/log.h
+++ b/aegisub/libaegisub/include/libaegisub/log.h
@@ -39,7 +39,7 @@
 
 // These macros below aren't a perm solution, it will depend on how annoying they are through
 // actual usage, and also depends on msvc support.
-#define LOG_SINK(section, severity) agi::log::Message::Message(section, severity, __FILE__, __FUNCTION__, __LINE__).stream()
+#define LOG_SINK(section, severity) agi::log::Message(section, severity, __FILE__, __FUNCTION__, __LINE__).stream()
 #define LOG_E(section) LOG_SINK(section, agi::log::Exception)
 #define LOG_A(section) LOG_SINK(section, agi::log::Assert)
 #define LOG_W(section) LOG_SINK(section, agi::log::Warning)
diff --git a/aegisub/src/gl_wrap.h b/aegisub/src/gl_wrap.h
index 72eddfea1..a358e0a80 100644
--- a/aegisub/src/gl_wrap.h
+++ b/aegisub/src/gl_wrap.h
@@ -65,7 +65,7 @@ typedef GLuint GLhandleARB;
 #define GL_EXT(type, name) \
 	static type name = reinterpret_cast<type>(glGetProc(#name)); \
 	if (!name) { \
-		name = & name ## Fallback; \
+		name = reinterpret_cast<type>(& name ## Fallback); \
 	}
 #endif
 
diff --git a/aegisub/src/visual_tool_vector_clip.cpp b/aegisub/src/visual_tool_vector_clip.cpp
index b11030049..2831609ab 100644
--- a/aegisub/src/visual_tool_vector_clip.cpp
+++ b/aegisub/src/visual_tool_vector_clip.cpp
@@ -119,7 +119,7 @@ void VisualToolVectorClip::SetMode(int newMode) {
 // Substitute for glMultiDrawArrays for sub-1.4 OpenGL
 // Not required on OS X.
 #ifndef __APPLE__
-static void APIENTRY glMultiDrawArraysFallback(GLenum mode, GLint *first, GLsizei *count, GLsizei primcount) {
+static void APIENTRY glMultiDrawArraysFallback(GLenum mode, const GLint *first, const GLsizei *count, GLsizei primcount) {
 	for (int i = 0; i < primcount; ++i) {
 		glDrawArrays(mode, *first++, *count++);
 	}