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743ab0187f
A sub-make, such as in 'make buildworld', may want to override MAKEOBJDIRPREFIX but is unable to do so if src-env.conf is forcing it to another value. Without using '?=' the sub-make may use the wrong .OBJDIR. Reported by: eadler Sponsored by: Dell EMC
89 lines
2.6 KiB
Makefile
89 lines
2.6 KiB
Makefile
# $FreeBSD$
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# early setup only see also src.sys.mk
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# bmake-20170301 started taking '-C' "as is" for some cases, notably absolute
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# paths. Some later comparisons will assume .CURDIR is resolved and matches
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# what we would get with 'cd'. So just force resolve it now if it is an
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# absolute path.
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.if ${MAKE_VERSION} >= 20170301 && !empty(.CURDIR:M/*)
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.CURDIR:= ${.CURDIR:tA}
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.endif
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# make sure this is defined in a consistent manner
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SRCTOP:= ${.PARSEDIR:tA:H:H}
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.if ${.CURDIR} == ${SRCTOP}
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RELDIR= .
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RELTOP= .
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.elif ${.CURDIR:M${SRCTOP}/*}
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RELDIR:= ${.CURDIR:S,${SRCTOP}/,,}
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.endif
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RELTOP?= ${RELDIR:C,[^/]+,..,g}
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RELOBJTOP?= ${RELTOP}
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RELSRCTOP?= ${RELTOP}
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# site customizations that do not depend on anything!
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# Save MAKEOBJDIRPREFIX and don't let src-env.conf modify it.
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# MAKEOBJDIRPREFIX is only needed in MAKELEVEL=0. In sub-makes it will
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# either be read from environment or OBJDIR/MAKEOBJDIR according to
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# src.sys.obj.mk.
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.if !(${.MAKE.LEVEL} == 0 || empty(OBJROOT))
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.if defined(MAKEOBJDIRPREFIX)
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_saveMAKEOBJDIRPREFIX:= ${MAKEOBJDIRPREFIX}
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.else
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_undefMAKEOBJDIRPREFIX= t
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.endif
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.endif
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SRC_ENV_CONF?= /etc/src-env.conf
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.if !empty(SRC_ENV_CONF) && !target(_src_env_conf_included_)
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.-include "${SRC_ENV_CONF}"
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_src_env_conf_included_: .NOTMAIN
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.endif
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.if defined(_saveMAKEOBJDIRPREFIX) || defined(_undefMAKEOBJDIRPREFIX)
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.if defined(MAKEOBJDIRPREFIX) && ((defined(_saveMAKEOBJDIRPREFIX) && \
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${_saveMAKEOBJDIRPREFIX} != ${MAKEOBJDIRPREFIX}) || \
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defined(_undefMAKEOBJDIRPREFIX))
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.warning ${SRC_ENV_CONF}: Ignoring MAKEOBJDIRPREFIX entry in sub-make. Use '?=' to avoid this warning.
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.endif
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.if defined(_saveMAKEOBJDIRPREFIX)
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MAKEOBJDIRPREFIX:= ${_saveMAKEOBJDIRPREFIX}
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.undef _saveMAKEOBJDIRPREFIX
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.elif defined(_undefMAKEOBJDIRPREFIX)
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.undef MAKEOBJDIRPREFIX
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.undef _undefMAKEOBJDIRPREFIX
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.endif
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.endif
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.include <bsd.mkopt.mk>
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# Top-level installs should not use meta mode as it may prevent installing
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# based on cookies.
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.if make(*install*) && ${.MAKE.LEVEL} == 0
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META_MODE= normal
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MK_META_MODE= no
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.export MK_META_MODE
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.endif
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# If we were found via .../share/mk we need to replace that
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# with ${.PARSEDIR:tA} so that we can be found by
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# sub-makes launched from objdir.
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.if ${.MAKEFLAGS:M.../share/mk} != ""
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.MAKEFLAGS:= ${.MAKEFLAGS:S,.../share/mk,${.PARSEDIR:tA},}
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.endif
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.if ${MAKESYSPATH:Uno:M*.../*} != ""
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MAKESYSPATH:= ${MAKESYSPATH:S,.../share/mk,${.PARSEDIR:tA},}
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.export MAKESYSPATH
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.elif empty(MAKESYSPATH)
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MAKESYSPATH:= ${.PARSEDIR:tA}
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.export MAKESYSPATH
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.endif
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.if ${RELDIR:U} == "." && ${.MAKE.LEVEL} == 0
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.sinclude "${.CURDIR}/Makefile.sys.inc"
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.endif
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.include <src.sys.obj.mk>
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