Simplify if() conditions on check result variables to fix CMP0054 warnin... #67
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Remove use of an old hack that takes advantage of the auto-dereference
behavior of the if() command to detect if a variable is defined. The
hack has the form:
if("${VAR} MATCHES "^${VAR}$")
where "${VAR}" is a macro argument reference. Use if(NOT DEFINED) instead.
This also avoids warnings for CMake Policy CMP0054.
lassoan
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May 3, 2017
EHN: This merge fix the ISSUE openigtlink#62 , also fix a potential bug in vtkIGTLToMRMLImage.
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...g
Remove use of an old hack that takes advantage of the auto-dereference
behavior of the if() command to detect if a variable is defined. The
hack has the form:
if("${VAR} MATCHES "^${VAR}$")
where "${VAR}" is a macro argument reference. Use if(NOT DEFINED) instead.
This also avoids warnings for CMake Policy CMP0054.