Dans CMakeLists.txt, je voudrais vérifier que bzlib.h existe:
include(CheckIncludeFiles) check_include_file(bzlib.h HAVE_BZLIB_H) if(NOT HAVE_BZLIB_H) # How can I exit cmake with an error message if bzlib.h does not exists? endif()
C’est assez simple: message( FATAL_ERROR "Your message" )