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Diffstat (limited to 'devel/bmake/files/mk/sys.vars.mk')
| -rw-r--r-- | devel/bmake/files/mk/sys.vars.mk | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/devel/bmake/files/mk/sys.vars.mk b/devel/bmake/files/mk/sys.vars.mk new file mode 100644 index 00000000000..797b1fc5e69 --- /dev/null +++ b/devel/bmake/files/mk/sys.vars.mk @@ -0,0 +1,85 @@ +# $Id: sys.vars.mk,v 1.1.1.1 2020/05/24 05:35:53 nia Exp $ +# +# @(#) Copyright (c) 2003-2009, Simon J. Gerraty +# +# This file is provided in the hope that it will +# be of use. There is absolutely NO WARRANTY. +# Permission to copy, redistribute or otherwise +# use this file is hereby granted provided that +# the above copyright notice and this notice are +# left intact. +# +# Please send copies of changes and bug-fixes to: +# sjg@crufty.net +# + +# We use the following paradigm for preventing multiple inclusion. +# It relies on the fact that conditionals and dependencies are resolved +# at the time they are read. +# +# _this ?= ${.PARSEFILE} +# .if !target(__${_this}__) +# __${_this}__: +# +.if ${MAKE_VERSION:U0} > 20100408 +_this = ${.PARSEDIR:tA}/${.PARSEFILE} +.else +_this = ${.PARSEDIR}/${.PARSEFILE} +.endif + +# if this is an ancient version of bmake +MAKE_VERSION ?= 0 +.if ${MAKE_VERSION:M*make-*} +# turn it into what we want - just the date +MAKE_VERSION := ${MAKE_VERSION:[1]:C,.*-,,} +.endif + +# some useful modifiers + +# A useful trick for testing multiple :M's against something +# :L says to use the variable's name as its value - ie. literal +# got = ${clean* destroy:${M_ListToMatch:S,V,.TARGETS,}} +M_ListToMatch = L:@m@$${V:M$$m}@ +# match against our initial targets (see above) +M_L_TARGETS = ${M_ListToMatch:S,V,_TARGETS,} + +# turn a list into a set of :N modifiers +# NskipFoo = ${Foo:${M_ListToSkip}} +M_ListToSkip= O:u:S,^,N,:ts: + +# type should be a builtin in any sh since about 1980, +# but sadly there are exceptions! +.if ${.MAKE.OS:Unknown:NBSD/OS} == "" +_type_sh = which +.endif + +# AUTOCONF := ${autoconf:L:${M_whence}} +M_type = @x@(${_type_sh:Utype} $$x) 2> /dev/null; echo;@:sh:[0]:N* found*:[@]:C,[()],,g +M_whence = ${M_type}:M/*:[1] + +# convert a path to a valid shell variable +M_P2V = tu:C,[./-],_,g + +# convert path to absolute +.if ${MAKE_VERSION:U0} > 20100408 +M_tA = tA +.else +M_tA = C,.*,('cd' & \&\& 'pwd') 2> /dev/null || echo &,:sh +.endif + +.if ${MAKE_VERSION:U0} >= 20170130 +# M_cmpv allows comparing dotted versions like 3.1.2 +# ${3.1.2:L:${M_cmpv}} -> 3001002 +# we use big jumps to handle 3 digits per dot: +# ${123.456.789:L:${M_cmpv}} -> 123456789 +M_cmpv.units = 1 1000 1000000 +M_cmpv = S,., ,g:_:range:@i@+ $${_:[-$$i]} \* $${M_cmpv.units:[$$i]}@:S,^,expr 0 ,1:sh +.endif + +# absoulte path to what we are reading. +_PARSEDIR = ${.PARSEDIR:${M_tA}} + +# many projects use MAJOR MINOR PATCH versioning +# ${OPENSSL:${M_M.M.P_VERSION}} is equivalent to +# ${OPENSSL_MAJOR_VERSION}.${OPENSSL_MINOR_VERSION}.${OPENSSL_PATCH_VERSION} +M_M.M.P_VERSION = L:@v@$${MAJOR MINOR PATCH:L:@t@$${$$v_$$t_VERSION:U0}@}@:ts. |