glretrace: Handle GL_ARB_sync properly.
When replaying, glretrace must wait for all fences that were recorded
as signalled in the trace, as subsequent calls might depend upon it.
diff --git a/specs/glapi.py b/specs/glapi.py
index 49cfb23..651f3a1 100644
--- a/specs/glapi.py
+++ b/specs/glapi.py
@@ -1443,7 +1443,7 @@
GlFunction(GLenum, "glClientWaitSync", [(GLsync, "sync"), (GLbitfield_sync_flush, "flags"), (GLuint64, "timeout")]),
GlFunction(Void, "glWaitSync", [(GLsync, "sync"), (GLbitfield, "flags"), (GLuint64, "timeout")]),
GlFunction(Void, "glGetInteger64v", [(GLenum, "pname"), Out(Array(GLint64, "_gl_param_size(pname)"), "params")], sideeffects=False),
- GlFunction(Void, "glGetSynciv", [(GLsync, "sync"), (GLenum, "pname"), (GLsizei, "bufSize"), Out(Pointer(GLsizei), "length"), Out(Array(GLint, "(length ? *length : bufSize)"), "values")], sideeffects=False),
+ GlFunction(Void, "glGetSynciv", [(GLsync, "sync"), (GLenum, "pname"), (GLsizei, "bufSize"), Out(Pointer(GLsizei), "length"), Out(Array(GLint, "(length ? *length : bufSize)"), "values")]),
# GL_ARB_tessellation_shader
GlFunction(Void, "glPatchParameteri", [(GLenum, "pname"), (GLint, "value")]),