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+set_property
+------------
+
+Set a named property in a given scope.
+
+::
+
+  set_property(<GLOBAL                            |
+                DIRECTORY [dir]                   |
+                TARGET    [target1 [target2 ...]] |
+                SOURCE    [src1 [src2 ...]]       |
+                TEST      [test1 [test2 ...]]     |
+                CACHE     [entry1 [entry2 ...]]>
+               [APPEND] [APPEND_STRING]
+               PROPERTY <name> [value1 [value2 ...]])
+
+Set one property on zero or more objects of a scope.  The first
+argument determines the scope in which the property is set.  It must
+be one of the following:
+
+GLOBAL scope is unique and does not accept a name.
+
+DIRECTORY scope defaults to the current directory but another
+directory (already processed by CMake) may be named by full or
+relative path.
+
+TARGET scope may name zero or more existing targets.
+
+SOURCE scope may name zero or more source files.  Note that source
+file properties are visible only to targets added in the same
+directory (CMakeLists.txt).
+
+TEST scope may name zero or more existing tests.
+
+CACHE scope must name zero or more cache existing entries.
+
+The required PROPERTY option is immediately followed by the name of
+the property to set.  Remaining arguments are used to compose the
+property value in the form of a semicolon-separated list.  If the
+APPEND option is given the list is appended to any existing property
+value.If the APPEND_STRING option is given the string is append to any
+existing property value as string, i.e.  it results in a longer string
+and not a list of strings.