Colm Aengus Murphy wrote:
I tried using ".SUFFIXES:".
Its a lot better but it still doesn't stop all of the built in rules.
For the simple makefile:
.SUFFIXES:
%.exe : %.c
gcc -o $(@F) $<
I still get:
Considering target file `helloworld.c'.
Looking for an implicit rule for `helloworld.c'.
Right. .SUFFIXES: only kills off the old-style suffix rules, and not
the pattern rules. Hence there are some (quite a few actually, that are
still in effect). If you want to kill the pattern rules then you have
three choices:
1. Specify -r on the command-line
2. Set -r in MAKEFLAGS in the environment before make is run
3. Kill them off one by one in the Makefile.
To do #3 for your example, you need to kill off the following:
%.c: %.w %.ch
%:: RCS/%,v
%:: RCS/%
%:: SCCS/s.%
%:: %,v
%:: s.%
Just writing those lines above in your Makefile will be enough. You can
use make -p to print out a list of the rules that are in effect if you
need to kill others.
John.
--
John Graham-Cumming
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