Add support for creating prebuilt Android.mk files

Add options to the `install()` and `export()` commands to export the
targets we build into Android.mk files that reference them as prebuilt
libraries with associated usage requirements (compile definitions,
include directories, link libraries).  This will allow CMake-built
projects to be imported into projects using the Android NDK build
system.

Closes: #15562

1 files changed, 1 insertions, 0 deletions

diff --git a/Source/cmExportCommand.h b/Source/cmExportCommand.h
index 0a149af..481d2c5 100644
--- a/Source/cmExportCommand.h
+++ b/Source/cmExportCommand.h
@@ -54,6 +54,7 @@ private:
   cmCAString Namespace;
   cmCAString Filename;
   cmCAEnabler ExportOld;
+  cmCAString AndroidMKFile;
 
   cmExportSet* ExportSet;