(Previous commit was made prematurely before I could finish composing

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the log message)

Bring in the WARNS directive from NetBSD, localized in a new bsd.sys.mk
to avoid polluting sys.mk.  This directive controls the addition of
compiler warning flags to CFLAGS in a relatively compiler-neutral manner.

The idea is that WARNS can be set in Makefile.inc or in individual
Makefiles as they become clean, to prevent the introduction of new
warnings in the code (-Werror is added by default when WARNS > 0).

This behaviour can be overridden with the following two knobs:
NO_WARNS disables the checking of WARNS completely
NO_WERROR disables the addition of -Werror to the flags.

Additionally, setting WFORMAT to 1 (in makefiles) and/or defining
FORMAT_AUDIT (by the user) will enable increased checking of format
string arguments.

Obtained from:	NetBSD
Reviewed by:	peter

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This commit is contained in:

Kris Kennaway 2001-05-19 23:24:17 +00:00

parent d510ecb42b

commit 46adf91a3b

Notes: svn2git 2020-12-20 02:59:44 +00:00

svn path=/head/; revision=76862

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