[CMake] Export the CMark targets
This creates a CMarkExports.cmake file that exports the cmark library and executable targets. This can be consumed by Swift so that Swift can depend on CMark's targets without needing to specify the absolute paths to libraries.
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 51dc8a0..6278019 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -130,6 +130,9 @@
DESTINATION include
)
+export(TARGETS ${PROGRAM} ${LIBRARY} ${STATICLIBRARY}
+ FILE ${CMAKE_CURRENT_BINARY_DIR}/CMarkExports.cmake)
+
# Feature tests
include(CheckIncludeFile)
include(CheckCSourceCompiles)
