all: split "api" into "api" and "logic"

Here, the "logic" module has all the stuff for building one's own
graphical user interface.

The "api" module has stuff used by other trackers.

While at it, each of "api", "logic", and "compat" need their own export
headers. This is because of preprocessor symbol clashes.

This is all because a change in the "gui"-only dependency required a
relink of all the trackers, protocols, and flters. It takes too long
when building in the release configuration. With the split, only the
"gui" module gets rebuilt. Since it has close to no static dependencies,
it's fast enough.

1 files changed, 18 insertions, 0 deletions

diff --git a/opentrack/export.hpp b/opentrack/export.hpp
new file mode 100644
index 00000000..2dab8bef
--- /dev/null
+++ b/opentrack/export.hpp
@@ -0,0 +1,18 @@
+#pragma once
+
+#ifdef BUILD_api
+#   ifdef _WIN32
+#       define OPENTRACK_API_LINKAGE __declspec(dllexport)
+#   else
+#       define OPENTRACK_API_LINKAGE
+#   endif
+
+#   ifndef _MSC_VER
+#       define OPENTRACK_API_EXPORT __attribute__ ((visibility ("default"))) OPENTRACK_API_LINKAGE
+#   else
+#       define OPENTRACK_API_EXPORT OPENTRACK_LINKAGE
+#   endif
+
+#else
+#   include "import.hpp"
+#endif