I am trying to understand the difference between 'gmake' and 'make'?
On my linux box they are identical:
% gmake --version
GNU Make 3.81
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
% make --version
GNU Make 3.81
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
I am guessing this isn't the same on all platforms? Is there a good reason to use one over the other? Is there some historical significance to why there are the two names?
'gmake' refers specifically to GNU make. 'make' refers to the system's default make implementation; on most Linux distros this is GNU make, but on other unixes, it could refer to some other implementation of make, such as BSD make, or the make implementations of various commercial unixes.
The language accepted by GNU make is a superset of the one supported by the traditional make utility.
By using 'gmake' specifically you can use GNU make extensions without worrying about them being misinterpreted by some other make implementation.
On my system no difference (gmake is soft link to make):
-> ls -l $(which gmake make)
lrwxrwxrwx 1 root root 4 Jun 5 2007 /usr/bin/gmake -> make
-rwxr-xr-x 1 root root 168976 Jul 13 2006 /usr/bin/make
gmake stands for GNU make. There're different implementations of make. On Linux machine most probably make will by GNU and to make user's life isier make is soft linked to gmake.
The usual "opposite" of gmake is BSD make, which will tend to be make on BSD systems, unsurprisingly. If you want to see what BSD make is like, on Debian derivatives it's available as apt-get install pmake.
pmake is unsurprisingly BSD make? >.<
Apparently, GNU make is practically universal now, so there should almost never be a difference.
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gcc -o $@ $<= no input sources with gmake because $< evaluates to an empty string. Worse combinations exist that can result in gcc clobbering files).$^? A variable with that name certainly exists in GNU Make, and as far as I can tell is compatible with legacy Make. Are the semantics in BSD Make different?