-
Brad King authored
This creates variable CMAKE_<LANG>_IMPLICIT_INCLUDE_DIRECTORIES to specify implicit include directories on a per-language basis. This replaces the previous platform-wide variable. It is necessary to avoid explicit specification of -I/usr/include on some compilers (such as HP aCC) because: 1.) It may break ordering among system include directories defined internally by the compiler, thus getting wrong system headers. 2.) It tells the compiler to treat the system include directory as a user include directory, enabling warnings in the headers. See issue #8598.
cb788e8f