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69 lines
2 KiB
Makefile
69 lines
2 KiB
Makefile
# SPDX-License-Identifier: BSD-2-Clause
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#
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# $Id: cc-wrap.mk,v 1.7 2024/02/17 17:26:57 sjg Exp $
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#
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# @(#) Copyright (c) 2022, Simon J. Gerraty
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#
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# This file is provided in the hope that it will
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# be of use. There is absolutely NO WARRANTY.
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# Permission to copy, redistribute or otherwise
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# use this file is hereby granted provided that
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# the above copyright notice and this notice are
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# left intact.
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#
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# Please send copies of changes and bug-fixes to:
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# sjg@crufty.net
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#
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.if ${MAKE_VERSION} >= 20220126
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# which targets are we interested in?
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CC_WRAP_TARGETS ?= ${OBJS:U} ${POBJS:U} ${SOBJS:U}
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.if !empty(CC_WRAP_TARGETS)
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# cleanup
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# all the target assignments below are effectively := anyway
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# so we might as well do this once
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CC_WRAP_TARGETS := ${CC_WRAP_TARGETS:O:u}
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# what do we wrap?
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CC_WRAP_LIST += CC CXX
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CC_WRAP_LIST := ${CC_WRAP_LIST:O:u}
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# what might we wrap them with?
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CC_WRAPPERS += ccache distcc icecc
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CC_WRAPPERS := ${CC_WRAPPERS:O:u}
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# $W can be as simple or complicated as you like (default is just $w)
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# eg.
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# CCACHE ?= ${CCACHE_ENV_VARS:@v@$v='${$v}'@} ${CCACHE_CMD} ${CCACHE_FLAGS}
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# or if you want global vars to be used modifiable after this include:
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# CCACHE ?= $${CCACHE_ENV_VARS:@v@$$v='$${$$v}'@} $${CCACHE_CMD} $${CCACHE_FLAGS}
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.for w in ${CC_WRAPPERS}
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${w:tu} ?= $w
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.endfor
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# we do not want to make all these targets out-of-date
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# just because one of the above wrappers are enabled/disabled
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${CC_WRAP_TARGETS}: .MAKE.META.CMP_FILTER = ${CC_WRAPPERS:tu:@W@${$W}@:S,^,N,}
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# some object src types we should not wrap
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CC_WRAP_SKIP_EXTS += s
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# We add the sequence we care about - excluding CC_WRAP_SKIP_EXTS
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# but prior filters can apply to full value of .IMPSRC
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CC_WRAP_FILTER += E:tl:${CC_WRAP_SKIP_EXTS:${M_ListToSkip}}
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CC_WRAP_FILTER := ${CC_WRAP_FILTER:ts:}
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# last one enabled wins!
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.for W in ${CC_WRAPPERS:tu}
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.if ${MK_$W:U} == "yes"
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.for C in ${CC_WRAP_LIST}
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# we have to protect the check of .IMPSRC from Global expansion
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${CC_WRAP_TARGETS}: $C = $${"$${.IMPSRC:${CC_WRAP_FILTER}}":?${$W}:} ${$C}
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.endfor
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.endif
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.endfor
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.endif
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.endif
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