The following issue has been SUBMITTED.
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http://cmake.org/Bug/view.php?id=13376
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Reported By: Bruce Cartland
Assigned To:
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Project: CMake
Issue ID: 13376
Category: CMake
Reproducibility: always
Severity: minor
Priority: low
Status: new
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Date Submitted: 2012-07-04 22:59 EDT
Last Modified: 2012-07-04 22:59 EDT
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Summary: For unset variables IF(${var}) and IF(NOT ${var})
both return FALSE which fails to work for predefined vars such as CYGWIN
Description:
(I'm a noob so please excuse if this is already report, not formatted correctly,
or invalid :)
See steps to reproduce.
Steps to Reproduce:
message(STATUS "CYGWIN = '${CYGWIN}'")
if(${CYGWIN})
message(STATUS "CYGWIN set")
else()
set(CYGWIN 0) #this "fixes" the problem and results in expected
behaviour
message(STATUS "CYGWIN not set")
endif()
if(NOT ${CYGWIN})
message(STATUS "CYGWIN not set")
else()
message(STATUS "CYGWIN set - or is it?")
endif()
Additional Information:
The script in steps to reproduce results in the following output:
-- CYGWIN = ''
-- CYGWIN not set
-- CYGWIN set - or is it?
Seems to me that FALSE should be defined to include blank as well as NO, etc OR
variables such as CYGWIN should be set to 0 and not left blank.
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Issue History
Date Modified Username Field Change
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2012-07-04 22:59 Bruce Cartland New Issue
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