svn commit: r287006 - head/share/mk

[Warner Losh]

Author: imp
Date: Fri Aug 21 19:51:19 2015
New Revision: 287006
URL: https://svnweb.freebsd.org/changeset/base/287006

Log:
  Document CFLAGS_NO_SIMD.

Modified:
  head/share/mk/bsd.README

Modified: head/share/mk/bsd.README
==============================================================================
--- head/share/mk/bsd.README	Fri Aug 21 18:42:57 2015	(r287005)
+++ head/share/mk/bsd.README	Fri Aug 21 19:51:19 2015	(r287006)
@@ -17,7 +17,7 @@ files.  In most cases it is only interes
 bsd.lib.mk.
 
 bsd.arch.inc.mk		- includes arch-specific Makefile.$arch
-bsd.cpu.mk		- sets CPU/arch-related variables
+bsd.cpu.mk		- sets CPU/arch-related variables (included from sys.mk)
 bsd.dep.mk		- handle Makefile dependencies
 bsd.doc.mk		- building troff system documents
 bsd.files.mk		- install of general purpose files
@@ -114,6 +114,14 @@ object.
 
 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 
+The following variables are common:
+
+CFLAGS_NO_SIMD	Add this to CFLAGS for programs that don't want any SIMD
+		instructions generated. It is setup in bsd.cpu.mk to an
+		appropriate value for the compiler and target.
+
+=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+
 The include file <sys.mk> has the default rules for all makes, in the BSD
 environment or otherwise.  You probably don't want to touch this file.