diff options
Diffstat (limited to 'make.1')
| -rw-r--r-- | make.1 | 35 |
1 files changed, 27 insertions, 8 deletions
@@ -1,4 +1,4 @@ -.\" $NetBSD: make.1,v 1.304 2022/01/29 20:54:58 sjg Exp $ +.\" $NetBSD: make.1,v 1.307 2022/03/26 15:39:58 sjg Exp $ .\" .\" Copyright (c) 1990, 1993 .\" The Regents of the University of California. All rights reserved. @@ -29,7 +29,7 @@ .\" .\" from: @(#)make.1 8.4 (Berkeley) 3/19/94 .\" -.Dd January 28, 2022 +.Dd March 24, 2022 .Dt MAKE 1 .Os .Sh NAME @@ -692,15 +692,15 @@ Variables that are defined specific to a certain target. .El .Pp Local variables can be set on a dependency line, if -.Va .MAKE.TARGET_LOCAL_VARIABLES , +.Va .MAKE.TARGET_LOCAL_VARIABLES is not set to .Ql false . The rest of the line -(which will already have had Global variables expanded), +(which will already have had global variables expanded) is the variable value. For example: .Bd -literal -offset indent -COMPILER_WRAPPERS+= ccache distcc icecc +COMPILER_WRAPPERS= ccache distcc icecc ${OBJS}: .MAKE.META.CMP_FILTER=${COMPILER_WRAPPERS:S,^,N,} .Ed @@ -708,17 +708,17 @@ ${OBJS}: .MAKE.META.CMP_FILTER=${COMPILER_WRAPPERS:S,^,N,} Only the targets .Ql ${OBJS} will be impacted by that filter (in "meta" mode) and -simply enabling/disabling any of the wrappers will not render all +simply enabling/disabling any of the compiler wrappers will not render all of those targets out-of-date. .Pp .Em NOTE : -target local variable assignments behave differently in that; +target-local variable assignments behave differently in that; .Bl -tag -width Ds -offset indent .It Ic \&+= Only appends to a previous local assignment for the same target and variable. .It Ic \&:= -Is redundant with respect to Global variables, +Is redundant with respect to global variables, which have already been expanded. .El .Pp @@ -2290,6 +2290,25 @@ The suffix must have been previously declared with Apply the .Ic .PHONY attribute to any specified sources. +.It Ic .POSIX +This should be the first non-comment line in a Makefile. +It results in the variable +.Va %POSIX +being defined with the value +.Ql 1003.2 . +The first time +.Ic .POSIX +is encountered, the makefile +.Ql posix.mk +will be included if possible, +to provide POSIX compatible default rules. +If +.Nm +is run with the +.Fl r +flag, then only +.Ql posix.mk +will contribute to the default rules. .It Ic .PRECIOUS Apply the .Ic .PRECIOUS |