CODEWITHSUNDEEP
c++cmakefile
Poptart
Poptart

Reputation: 341

Make -- Changing system-wide implicit rules

Say I have a file foo.c and there is no Makefile, when I call make foo the implicit rules of make conveniently kick in and compile foo.c. Is there an easy way to add a couple flags such as -g and -Wall into the implicit rules?

I've seen that I could use pattern rules in a Makefile, but I'd rather have these flags in the implicit rules apply across the entirety of my local machine (mac OS).

Upvotes: 1

Views: 149

Answers (2)

FreeStyle4
FreeStyle4

Reputation: 282

I think I found an article for what you're looking for:

http://seshbot.com/blog/2014/06/16/make-with-no-makefile-for-c-plus-plus-playgrounds/

Basically, it tells you to set the environment variables to the flags you always want to be passed by default

Upvotes: 0

Brian Sidebotham
Brian Sidebotham

Reputation: 1906

You can prepend CFLAGS to the command line:

CFLAGS='-g -Wall' make foo

Upvotes: 3

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