source_subfolder/src/closures.c: In function 'dlmmap_locked':
source_subfolder/src/closures.c:488:7: warning: ignoring return value of 'ftruncate', declared with attribute warn_unused_result [-Wunused-result]
       ftruncate (execfd, offset);
       ^
source_subfolder/src/closures.c:500:7: warning: ignoring return value of 'ftruncate', declared with attribute warn_unused_result [-Wunused-result]
       ftruncate (execfd, offset);
       ^
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY