[CMake] set(a b); set(b c); if(a STREQUAL b OR a STREQUAL c) ...

[Clark Wang]

Hi,

I don't understand why the following code would not print "true" (tested
with cmake-3.0):

  set(a b)
  set(b c)
  if(a STREQUAL b OR a STREQUAL c)
    message("true")
  endif()

>From my understanding, no matter how magic the if command interprets its
arguments, one of the expressions (a STREQUAL b) and (a STREQUAL c) must be
true but I'm wrong. Anyone has a reasonable explanation?

Thanks.

-clark
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