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-
- NAME
- make
-
- SYNOPSIS
- make [filename]
-
- DESCRIPTION
- MAKE performs the necessary actions to generate an updated
- version of the specified file when some of the files on which
- it depends have been changed. The dependency relationships and
- the required actions are described in the text file MKFILE,
- as in the following...
-
- #
- # make file using DeSmet compiler
- #
- try.exe: try.o
- bind try exec
-
- try.o: try.c
- c88 try
-
- try.c:
-
- make.exe: make.o
- bind make exec
-
- make.o: make.c
- c88 make
-
- make.c:
-
- All the blank lines are required. Lines starting with '#' are
- comments. Otherwise, MKFILE consists of a series of blocks. Each
- block is a dependency line followed by zero or more action lines
- followed by a blank line. A dependency line has a target file
- name, a colon, and a list of the files on which the target file
- depends. Whitespace (blanks or tabs) can be added for clarity.
- Any line can be continued by ending it with '\'.
-
- MAKE will find the block in MKFILE which has the specified file
- as a target and record its dependencies and actions. It will
- repeat this recursively for each dependent file. It will then
- check the create times and dates of the files. If any
- dependent files is newer than the corresponding target file,
- the actions which follow will be performed. MAKE then updates
- the create times and repeats for the other blocks.
-
- If no filename is specified on the command line, MAKE will make
- the first file in MKFILE.
-
- There are several restrictions not present in the Unix facility
- of the same name. All dependent files must appear somewhere
- else as target files. That's why the null entries for try.c
- and make.c appear above. The blocks must be separated by blank
- lines.
-
- BUGS
- The DeSmet library doesn't include the function system() used by
- Holub, so I wrote the one included here. It uses the PATH just
- like COMMAND.COM. It will find either .COM or .EXE files, but
- can't run .BAT files.
-
- AUTHOR
- Written by Allen I. Holub (published in Dr. Dobb's Journal
- #106, August 1985)
-
- system() and envsearch() added by James R. Van Zandt.
-