On 3/26/2012 8:28 AM, Rolf Eike Beer wrote:
The find_library command automatically searches "lib" under each path
in CMAKE_SYSTEM_PREFIX_PATH and CMAKE_PREFIX_PATH. Any path that has
"lib" in it will first be transformed to "lib64" when the above property
is ON. Using "PATH_SUFFIXES lib64 lib" is not necessary to get lib64
to be searched.
Is this also true for everything passed in with PATHS or HINTS?
Yes. The lib->lib64 translation is a special case in the find_library
command. It occurs at the very end, even after PATH_SUFFIXES.
Is same is true for find_path() and include suffix?
There is no automatic translation to "include64". However the command
will search "include" under each prefix as above so one does not need
to write "PATH_SUFFIXES include" to search<prefix>/include with the
find_path command.
The question was just about the automatic appending, not include64 ;) So: does
it add everything in PATH_SUFFIXES (which automatically includes "include") to
paths specified by PATHS and HINTS?
No. Each find command documents an ordered list of steps it follows
to add search paths. A couple of them in find_path take the prefix
paths and add "include" to each entry. Other steps add the HINTS
and PATHS values. The PATH_SUFFIXES are added to all of them.
-Brad
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