Landon Curt Noll
e00d20111d
Due to GitHub not serving nor rendering HTML files whose filename starts with "." (dot), we renamed `.inventory.html` to `inventory.html`. Renamed: `tmp/gen_dot_winner.sh` -> `tmp/gen_winner_json.sh` Fixed URL generation for GitHub links in `inventory.html`. The manifest was updated accordingly. The `tmp/README.md` file was updated accordingly.
To build:
make
To use:
./prog [arg ..]
Try:
make
cp -f prog morgan
./morgan clobber
ls
./morgan all install
ls
./prog love haste waste supernova
ls
make
./prog magic
ls
Judges' remarks:
Think of this as a Maker Faire's make. :-)
It works reasomably well. While not super ultra-featured, it does fair well with the Makefile we supplied. Not only that, it helped uncover a bug we had in our special Makefile rules.
Author's remarks:
Remarks
This program is a tiny make clone.
It is able to parse a subset of the make syntax and will execute rules for
goals given in arguments if they need to (based on timestamp of dependencies
of rule targets).
Supported features
- Variable assignments (only recursive ones). Variable references with recursion.
- Environment variables are available.
- It is possible to specify variables in command line:
name=value. - Variables given in command line will have precedence over variables defined in makefile, which will have precedence over environment variables.
- If no goal given in command line, the first target defined will be used.
- Comments, escaped comments, escaped new lines.
It should be able to build programs of previous years with the provided Makefile
found in previous contest archives. Simply use this program instead of make.
It will recursively use itself for submake (the MAKE= assignment inside
Makefile will be ignored to continue using itself).
Limitations / Known issues
- There is a lot of memory leak (not a single free).
- The opened file is not closed.
- The input file shall be named
Makefile. - No diagnostic message, but the exit status is non zero to indicates failure (failed command in a rule or missing target).
- Only
$<and$@are supported for automatic variables in commands. - No parallel execution (
-joption). - No
:=+=?=syntax for variable assignment. - No built-in function available.
- No pattern targets.
- No pattern substitution variables.
- No built-in rules.
- No built-in variables (except the one from environment).
- No conditional directives.
Compilation warnings
with gcc 4.8.2 on Linux Ubuntu 14.04 64-bit :
- prog.c:22:15: warning: return makes integer from pointer without a cast [enabled by default]
- prog.c:23:72: warning: signed and unsigned type in conditional expression [-Wsign-compare]
- prog.c:12:11: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
Copyright and CC BY-SA 4.0 License:
This file is Copyright (c) 2023 by Landon Curt Noll. All Rights Reserved. You are free to share and adapt this file under the terms of this license:
Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
For more information, see: https://creativecommons.org/licenses/by-sa/4.0/