Alan W. Irwin wrote:
On 2006-11-01 16:39-0500 Tristan Carel wrote:
On 11/1/06, Tristan Carel <[EMAIL PROTECTED]> wrote:
On 11/1/06, Brad King <[EMAIL PROTECTED]> wrote:
> SET(MYLIB)
> FIND_LIBRARY(MYLIB ...)
It doesn't seem to work, the cache value is not updated.
Ok it works if I set
SET(PYTHON_LIBRARIES PYTHON_LIBRARIES-NOTFOUND)
which is logic!
Thanks to Brad & Alan
Brad, would it be easier to treat all FALSE values the same way (as you
assumed above)?
What I mean by FALSE is the same things the IF(NOT variable) considers to
be TRUE. According to the documentation that is
"IF(NOT variable)
True if the variable's value is empty, 0, N, NO, OFF, FALSE,
NOTFOUND,
or <variable>-NOTFOUND."
As you found out, it can be confusing if FIND_XXX makes distinctions
between
these various kinds of FALSE values. Whatever the final decision on this
issue, please make sure the documentation reflects that decision.
The NOTFOUND has to remain special for the FIND_XXX. It is in the
current CVS docs for
the command. The reason is you may want to set the variable to a FALSE
value that will stop the
FIND_XXX from looking for some reason. For example, I am running a
dashboard and I know there
is a bad version of some software on that machine, and for some reason I
can not fix that software.
I can preload the cache with the variable set to FALSE, and this will
keep the FIND_XXX stuff from
finding the bad software on the machine when cmake is run.
-Bill
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