/DEFINE

    /DEFINE=(identifier[=definition][,...])
    /NODEFINE (D)

 Performs the same function as the #define preprocessor directive.
 That is, /DEFINE defines a token string or macro to be substituted
 for every occurrence of a given identifier in the program.

 DCL converts all input to uppercase unless it is enclosed in
 quotation marks.

 The simplest form of a /DEFINE definition is:

 /DEFINE=true

 This results in a definition like the one that would result from
 the following definition:

 #define TRUE 1

 Macro definitions must be enclosed in quotation marks as shown in
 the following definition:

 /DEFINE="funct(a)=a+sin(a)"

 This definition produces the same results as the following
 definition:

 #define funct(a) a+sin(a)

 When more than one /DEFINE is present on the CC command line or in
 a single compilation unit, only the last /DEFINE is used.

 When both /DEFINE and /UNDEFINE are present in a command line,
 /DEFINE is evaluated before /UNDEFINE.

 The default is /NODEFINE.