Merge pull request OSGeo#12217 from dbaston/cmake-exports

CMake: Export GDAL library targets

Author: rouault

gdal.cmake

@@ -553,6 +553,11 @@ install(
   PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
   FRAMEWORK DESTINATION "${FRAMEWORK_DESTINATION}")
 
+# Generate targets file for importing directly from GDAL build tree
+export(TARGETS ${GDAL_LIB_TARGET_NAME}
+        NAMESPACE GDAL::
+        FILE "GDAL-targets.cmake")
+
 if (NOT GDAL_ENABLE_MACOSX_FRAMEWORK)
   # Generate GdalConfig.cmake and GdalConfigVersion.cmake
   install(