2019-02-18 16:39:39 +00:00
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Following is a repost of the public domain 'make' that I posted
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to net.sources a couple of months ago. I have fixed a few bugs, and
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added some more features, and the resulting changes amounted to
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about as much text as the whole program (hence the repost).
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For those that missed the net.sources posting, this is a public domain
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re-implementation of the UNIX make program. There is no manual included;
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for documentation, refer to a UNIX manual, or the source.
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Here is a list of the changes made:
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i) If '-' (ignore) or '@' (silent) where used at the start
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of a command, their effect was not turned off for the following
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commands.
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ii) A special target (.SUFFIXES, .PRECIOUS) or a rule (.c.o, .a.o),
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if first in the file would be taken as the default target.
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This resulted in error messages like "Don't know how to
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make .c", because things like .SUFFIXES were being made.
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This was further complicated by ---
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iii) Special target lines with no dependents (ie. .SUFFIXES:\n)
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were not clearing out the existing dependents like
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they should.
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iv) Default rules could not be redefined because of the error
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checking for commands being defined twice. Now you are
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allowed to define a target beinging with '.', having
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no dependents with commands.
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v) The -q option didn't do the time comparison correctly,
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or clear the variable used to keep track of this. Thus
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it didn't work very well.
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vi) The syntax ${..} for macro's supported by UNIX make was
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not supported.
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vii) There wuz a couple of spelling errors.
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viii) When make checked for implicit rules on targets without
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a suffix, there were problems. (Note: The ~ feature of
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UNIX make wasn't and still isn't supported)
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ix) The -n option did not print @ lines like it was supposed to.
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x) :: added. (See UNIX manual)
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xi) $? added. (see UNIX manual)
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Hacked further by Ceriel Jacobs to make it work better. Use this "make" to
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install ACK under Microsoft Xenix V3.2. Some of the makefiles are just too
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big for the Xenix "make". Strange, they work on a PDP-11 ...
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Made it almost ISO C90 and POSIX portable by Carl Eric Codere, and
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also made it safer by using correct datatypes on some library calls.
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