C51: Support for -I and -D Makefile Commands

Information in this article applies to:

• C51

QUESTION

We wish to call the compiler from a makefile and use the -l and -d options to specify include directories and define names. Can this be done?

ANSWER

The compiler does not support -l and -d, but it does have directives that achieve the same result.

To specify include directories, use the INCDIR directive. For example:

INCDIR (C:\UTILS\H, C:\FOO)

To specify define names, use the DEFINE directive. For example:

DEFINE(_MSDOS = "1", BAR = "BAZ")

MORE INFORMATION

• Refer to DEFINE in the Cx51 User's Guide.
• Refer to INCDIR in the Cx51 User's Guide.

SEE ALSO

• C51: Unable to Find Include Files Using Long Directory Names
• C51: Specifying Header Paths from the Command Line

Last Reviewed: Thursday, February 25, 2021