12.1 Environment variables affecting the Mercury compiler

MERCURY_COMPILER

Filename of the Mercury compiler.

MERCURY_MKINIT

Filename of the program to create the *_init.c file.

MERCURY_DEFAULT_GRADE

The default grade to use if no ‘--grade’ option is specified.

MERCURY_STDLIB_DIR

The directory containing the installed Mercury standard library. ‘--mercury-stdlib-dir’ options passed to the ‘mmc’, ‘ml’, ‘mgnuc’ and ‘c2init’ scripts override the setting of the MERCURY_STDLIB_DIR environment variable.

MERCURY_COLOR_SCHEME

The specification of the map from color roles to color shades that the Mercury compiler should use in diagnostics. For the details of the syntax, semantics, and effects of such specifications, please see Color schemes.

MERCURY_ENABLE_COLOR

This environment variable should contain either ‘always’ or ‘1’ to enable the use of color in diagnostics by the Mercury compiler, or either ‘never’ or ‘0’ to disable it. Note however that this effect can be overruled by command line options; for the details, please see Enabling the use of color.

NO_COLOR

This environment variable being set to any nonempty string will disable the use of color in diagnostics by the Mercury compiler. Note however that this effect can be overruled by command line options and by the ‘MERCURY_ENABLE_COLOR’ environment variable; for the details, please see Enabling the use of color.