-U+
Same as the -undefine option.
Syntax
-U+
name
Related information
-convertpaths
-cwd
-D+
-define
-E
-EP
-gccincludes
-I-
-I+
-include
-ir
-P
-precompile
-preprocess
-ppopt
-prefix
-noprecompile
-nosyspath
-stdinc
-undefine