2009/7/1 Marcel Loose <[email protected]>: > Hi all, > > In a number of standard CMake modules I encountered the following line: > > IF("${VARIABLE}" MATCHES "^${VARIABLE}$") > > Can anyone explain the rationale of this conditional to me.
The rational no but .... > To my cluttered mind this seems to be an "always-true" condition. this is definitely not always true. The variable your are testing may contain "un-evaluated" var or some special regex character( *, ?, ...) See attached example, you may test it with $ cmake -P matches.cmake MATCHES -- MYVAR = A good var Look that one = double-dollar = blah / single-dollar = MYVAR2 NO MATCHES ** MYVAR = MYVAR2 $ However I have no such usage currently :-) -- Erk Membre de l'April - « promouvoir et défendre le logiciel libre » - http://www.april.org
matches.cmake
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