[program_options] cmake discovery issue

From: Jeanette C. (julien_at_[hidden])
Date: 2020-04-21 19:33:25

Hello,
I can't say when these errors first appeared, certainly not in Boost 1.63 . I 
have a project working with cmake and the following cmmake lines:
set(Boost_USE_MULTITHREADED ON)
find_package(Boost 1.58 REQUIRED COMPONENTS program_options filesystem 
date_time system)
if (Boost_PROGRAM_OPTIONS_FOUND)
   set (INCS ${INCS} ${Boost_INCLUDE_DIRS})
   set (LIBS ${LIBS} ${Boost_PROGRAM_OPTIONS_LIBRARY} ${Boost_SYSTEM_LIBRARY})
endif (Boost_PROGRAM_OPTIONS_FOUND)

Which says that it found the libraries and lower down produces this error:
CMake Error in CMakeLists.txt:
   Imported target "Boost::program_options" includes non-existent path
   "/include"
   in its INTERFACE_INCLUDE_DIRECTORIES.  Possible reasons include:
   * The path was deleted, renamed, or moved to another location.
   * An install or uninstall procedure did not complete successfully.
   * The installation package was faulty and references files it does not provide.
This error appears twice in the output.

My cmake skills are too meagre to trace it to a particular point in the Boost 
Cmake modules.

Could someone please help? Is it perhaps my fault for not updating a call 
somewhere?

Best wishes and TIA,

Jeanette

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