xref: /freebsd/share/mk/local.sys.env.mk (revision 39ee7a7a6bdd1557b1c3532abf60d139798ac88b)
1# $FreeBSD$
2
3# This makefile is for customizations that should be done early
4
5.if !defined(_TARGETS)
6# some things we do only once
7_TARGETS:= ${.TARGETS}
8.export _TARGETS
9.endif
10
11# some handy macros
12_this = ${.PARSEDIR:tA}/${.PARSEFILE}
13# some useful modifiers
14
15# A useful trick for testing multiple :M's against something
16# :L says to use the variable's name as its value - ie. literal
17# got = ${clean* destroy:${M_ListToMatch:S,V,.TARGETS,}}
18M_ListToMatch = L:@m@$${V:M$$m}@
19# match against our initial targets (see above)
20M_L_TARGETS = ${M_ListToMatch:S,V,_TARGETS,}
21
22# turn a list into a set of :N modifiers
23# NskipFoo = ${Foo:${M_ListToSkip}}
24M_ListToSkip= O:u:ts::S,:,:N,g:S,^,N,
25
26# type should be a builtin in any sh since about 1980,
27# AUTOCONF := ${autoconf:L:${M_whence}}
28M_type = @x@(type $$x 2> /dev/null); echo;@:sh:[0]:N* found*:[@]:C,[()],,g
29M_whence = ${M_type}:M/*:[1]
30
31# convert a path to a valid shell variable
32M_P2V = tu:C,[./-],_,g
33
34# these are handy
35# we can use this for a cheap timestamp at the start of a target's script,
36# but not at the end - since make will expand both at the same time.
37TIME_STAMP_FMT = @ %s [%Y-%m-%d %T]
38TIME_STAMP = ${TIME_STAMP_FMT:localtime}
39# this will produce the same output but as of when date(1) is run.
40TIME_STAMP_DATE = `date '+${TIME_STAMP_FMT}'`
41TIME_STAMP_END?= ${TIME_STAMP_DATE}
42
43.include "src.sys.env.mk"
44