197 lines
5.5 KiB
Makefile
197 lines
5.5 KiB
Makefile
# $Id: dpadd.mk,v 1.19 2014/04/05 22:56:54 sjg Exp $
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#
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# @(#) Copyright (c) 2004, 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 !target(__${.PARSEFILE}__)
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__${.PARSEFILE}__:
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# sometimes we play games with .CURDIR etc
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# _* hold the original values of .*
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_OBJDIR?= ${.OBJDIR}
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_CURDIR?= ${.CURDIR}
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# DPLIBS helps us ensure we keep DPADD and LDADD in sync
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DPLIBS+= ${DPLIBS_LAST}
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DPADD+= ${DPLIBS}
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.for __lib in ${DPLIBS:T:R}
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LDADD+= ${LDADD_${__lib}:U${__lib:T:R:S/lib/-l/:C/\.so.*//}}
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.endfor
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# DPADD can contain things other than libs
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__dpadd_libs = ${DPADD:M*/lib*}
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# some libs have dependencies...
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# DPLIBS_* allows bsd.libnames.mk to flag libs which must be included
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# in DPADD for a given library.
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.for __lib in ${__dpadd_libs:@d@${DPLIBS_${d:T:R}}@}
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.if "${DPADD:M${__lib}}" == ""
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DPADD+= ${__lib}
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LDADD+= ${LDADD_${__lib}:U${__lib:T:R:S/lib/-l/:C/\.so.*//}}
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.endif
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.endfor
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# Last of all... for libc and libgcc
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DPADD+= ${DPADD_LAST}
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# Convert DPADD into -I and -L options and add them to CPPFLAGS and LDADD
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# For the -I's convert the path to a relative one. For separate objdirs
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# the DPADD paths will be to the obj tree so we need to subst anyway.
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# If USE_PROFILE is yes, then check for profiled versions of libs
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# and use them.
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USE_PROFILE?=no
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.if defined(LIBDL) && exists(${LIBDL})
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.if defined(PROG) && (make(${PROG}_p) || ${USE_PROFILE} == yes) && \
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defined(LDFLAGS) && ${LDFLAGS:M-export-dynamic}
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# building profiled version of a prog that needs dlopen to work
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DPLIBS+= ${LIBDL}
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.endif
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.endif
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.if defined(LIBDMALLOC) && exists(${LIBDMALLOC})
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.if defined(USE_DMALLOC) && ${USE_DMALLOC} != no
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.if !defined(NO_DMALLOC)
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CPPFLAGS+= -DUSE_DMALLOC
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.endif
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DPLIBS+= ${LIBDMALLOC}
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.endif
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.endif
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# Order -L's to search ours first.
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# Avoids picking up old versions already installed.
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__dpadd_libdirs := ${__dpadd_libs:R:H:S/^/-L/g:O:u:N-L}
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LDADD += ${__dpadd_libdirs:M-L${OBJTOP}/*}
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LDADD += ${__dpadd_libdirs:N-L${OBJTOP}/*}
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.if ${.CURDIR} == ${SRCTOP}
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RELDIR=.
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RELTOP=.
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.else
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RELDIR?= ${.CURDIR:S,${SRCTOP}/,,}
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.if ${RELDIR} == ${.CURDIR}
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RELDIR?= ${.OBJDIR:S,${OBJTOP}/,,}
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.endif
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RELTOP?= ${RELDIR:C,[^/]+,..,g}
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.endif
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RELOBJTOP?= ${OBJTOP}
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RELSRCTOP?= ${SRCTOP}
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.if !make(dpadd)
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.ifdef LIB
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# Each lib is its own src_lib, we want to include it in SRC_LIBS
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# so that the correct INCLUDES_* will be picked up automatically.
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SRC_LIBS+= ${_OBJDIR}/lib${LIB}.a
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.endif
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.endif
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#
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# This little bit of magic, assumes that SRC_libfoo will be
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# set if it cannot be correctly derrived from ${LIBFOO}
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# Note that SRC_libfoo and INCLUDES_libfoo should be named for the
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# actual library name not the variable name that might refer to it.
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# 99% of the time the two are the same, but the DPADD logic
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# only has the library name available, so stick to that.
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#
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SRC_LIBS?=
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__dpadd_libs += ${SRC_LIBS}
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DPMAGIC_LIBS += ${__dpadd_libs} \
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${__dpadd_libs:@d@${DPMAGIC_LIBS_${d:T:R}}@}
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.for __lib in ${DPMAGIC_LIBS:O:u}
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#
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# if SRC_libfoo is not set, then we assume that the srcdir corresponding
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# to where we found the library is correct.
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#
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SRC_${__lib:T:R} ?= ${__lib:H:S,${OBJTOP},${RELSRCTOP},}
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#
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# This is a no-brainer but just to be complete...
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#
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OBJ_${__lib:T:R} ?= ${__lib:H:S,${OBJTOP},${RELOBJTOP},}
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#
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# If INCLUDES_libfoo is not set, then we'll use ${SRC_libfoo}/h if it exists,
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# else just ${SRC_libfoo}.
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#
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INCLUDES_${__lib:T:R}?= -I${exists(${SRC_${__lib:T:R}}/h):?${SRC_${__lib:T:R}}/h:${SRC_${__lib:T:R}}}
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.endfor
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# Now for the bits we actually need
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__dpadd_incs=
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.for __lib in ${__dpadd_libs:u}
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.if (make(${PROG}_p) || defined(NEED_GPROF)) && exists(${__lib:R}_p.a)
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__ldadd=-l${__lib:T:R:S,lib,,}
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LDADD := ${LDADD:S,^${__ldadd}$,${__ldadd}_p,g}
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.endif
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#
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# Some libs generate headers, so we potentially need both
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# the src dir and the obj dir.
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# If ${INCLUDES_libfoo} contains a word ending in /h, we assume that either
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# 1. it does not generate headers or
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# 2. INCLUDES_libfoo will have been set correctly
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# XXX it gets ugly avoiding duplicates...
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# use :? to ensure .for does not prevent correct evaluation
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#
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# We take care of duplicate suppression later.
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__dpadd_incs += ${"${INCLUDES_${__lib:T:R}:M*/h}":? :-I${OBJ_${__lib:T:R}}}
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__dpadd_incs += ${INCLUDES_${__lib:T:R}}
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.endfor
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#
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# eliminate any duplicates - but don't mess with the order
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# force evaluation now - to avoid giving make a headache
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#
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.for t in CFLAGS CXXFLAGS
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# avoid duplicates
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__$t_incs:=${$t:M-I*:O:u}
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.for i in ${__dpadd_incs}
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.if "${__$t_incs:M$i}" == ""
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$t+= $i
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__$t_incs+= $i
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.endif
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.endfor
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.endfor
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# This target is used to gather a list of
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# dir: ${DPADD}
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# entries
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.if make(*dpadd*)
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# allow overrides
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.-include "dpadd++.mk"
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.if !target(dpadd)
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dpadd: .NOTMAIN
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.if defined(DPADD) && ${DPADD} != ""
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@echo "${RELDIR}: ${DPADD:S,${OBJTOP}/,,}"
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.endif
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.endif
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.endif
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.ifdef SRC_PATHADD
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# We don't want to assume that we need to .PATH every element of
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# SRC_LIBS, but the Makefile cannot do
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# .PATH: ${SRC_libfoo}
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# since the value of SRC_libfoo must be available at the time .PATH:
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# is read - and we only just worked it out.
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# Further, they can't wait until after include of {lib,prog}.mk as
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# the .PATH is needed before then.
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# So we let the Makefile do
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# SRC_PATHADD+= ${SRC_libfoo}
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# and we defer the .PATH: until now so that SRC_libfoo will be available.
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.PATH: ${SRC_PATHADD}
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.endif
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.endif
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