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-rw-r--r--Source/cmIfCommand.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/Source/cmIfCommand.h b/Source/cmIfCommand.h
index fa1df27..9e55762 100644
--- a/Source/cmIfCommand.h
+++ b/Source/cmIfCommand.h
@@ -113,9 +113,11 @@ public:
"will be evaluated. Then NOT operators and finally AND, OR operators "
"will be evaluated. Possible expressions are:\n"
" IF(variable)\n"
- "True if the variable's value is not empty, 0, FALSE, OFF, or NOTFOUND.\n"
+ "True if the variable's value is not empty, 0, N, NO, OFF, FALSE, "
+ "NOTFOUND, or <variable>-NOTFOUND.\n"
" IF(NOT variable)\n"
- "True if the variable's value is empty, 0, FALSE, OFF, or NOTFOUND.\n"
+ "True if the variable's value is empty, 0, N, NO, OFF, FALSE, "
+ "NOTFOUND, or <variable>-NOTFOUND.\n"
" IF(variable1 AND variable2)\n"
"True if both variables would be considered true individually.\n"
" IF(variable1 OR variable2)\n"