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dc2d963989
This commit introduces two visible changes: 1. Keep command line variable assignments in MAKEFLAGS at all times, even while parsing makefiles. 2. Define makeflags immediately when a makefile modifies MAKEFLAGS. The new MAKEFLAGS and MAKEOVERRIDES initialization procedure: 1. decode_switches (argc, argv, o_command) is called to parse command line variable assignments. 2. Command line variable assignments go through quote_for_env. Initialize -*-command-variables-*- to the quoted values. 3. MAKEOVERRIDES is initialized to refer to -*-command-variables-*- with origin o_env to keep the definitions in the database intact. 4. define_makeflags() is called which adds MAKEOVERRIDES to MAKEFLAGS. 5. Makefiles are parsed. If a makefile modifies MAKEFLAGS, the new value of MAKEFLAGS is defined right away. 6. Env switches are decoded again as o_env. The definitions set by decode_switches at step 1 stay intact, as o_command beats o_env. We must preserve the original intact definitions in order to detect failure cases; for example: $ cat makefile all:; $(hello) $ make hello='$(world' makefile:1: *** unterminated variable reference. Stop. * src/makeint.h: Declare enum variable_origin, struct variable and define_makeflags(). Add parameter origin to decode_env_switches(). * src/main.c (define_makeflags): Remove "all". If a variable is assigned on the command line then append MAKEOVERRIDES to MAKEFLAGS. (decode_env_switches): Replace parameter env with origin. (decode_switches): Replace parameter env with origin. Treat origin == o_command as env == 0. (handle_non_switch_argument): Replace parameter env with origin. Treat origin == o_command as env == 0. (main): Call decode_switches() with origin==o_command before parsing makefiles. Call decode_switches() with origin==o_env after parsing makefiles. * src/variable.c (set_special_var): Define makeflags at parse time, each time a makefile modifies MAKEFLAGS. (do_variable_definition): Strip command line variable assignments from MAKEFLAGS before appending extra flags. set_special_var() adds them back. * tests/scripts/variables/MAKEFLAGS: Add tests. |
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| .. | ||
| automatic | ||
| CURDIR | ||
| DEFAULT_GOAL | ||
| define | ||
| EXTRA_PREREQS | ||
| flavors | ||
| GNUMAKEFLAGS | ||
| INCLUDE_DIRS | ||
| LIBPATTERNS | ||
| MAKE | ||
| MAKE_RESTARTS | ||
| MAKECMDGOALS | ||
| MAKEFILES | ||
| MAKEFLAGS | ||
| MAKELEVEL | ||
| MFILE_LIST | ||
| negative | ||
| private | ||
| SHELL | ||
| special | ||
| undefine | ||