Alter the way pkgsrc handles dependencies on pthreads. We now bless the
hard-syscall version of GNU pth as the official pthread replacement package for those platforms that don't have a native pthread library. USE_PTHREAD is now deprecated in favor of directly include pthread.buildlink.mk, but the behaviour may be tweaked by setting PTHREAD_OPTS to contain any of "native" and "require". More complete documentation may be found in the first half of this file.
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jlam
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1 changed files with 122 additions and 69 deletions
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# $NetBSD: pthread.buildlink.mk,v 1.5 2002/05/29 08:19:55 skrll Exp $
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# $NetBSD: pthread.buildlink.mk,v 1.6 2002/08/01 05:40:29 jlam Exp $
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#
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# This Makefile fragment is included by packages that use pthreads.
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# This Makefile fragment is also included directly by bsd.prefs.mk.
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# The pthreads strategy for pkgsrc is to "bless" a particular pthread
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# package as the Official Pthread Replacement (OPR). A package that uses
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# pthreads may do one of the following:
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#
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# To use this Makefile fragment, simply:
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# (1) Simply include pthread.buildlink.mk. This will make the package
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# use the native pthread library if it's available, or else the OPR
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# package. The value of PTHREAD_TYPE may be checked to be either
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# "native", or the name of the OPR package, or "none", e.g.
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#
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# (1) Define USE_PTHREAD _before_ including bsd.prefs.mk in the package
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# Makefile,
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# (2) Optionally set PTHREAD_TYPE to force the use of a specific pthread
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# implementation,
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# (3) Include bsd.prefs.mk in the package Makefile,
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# (4) And include this Makefile fragment in the package Makefile.
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# #
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# # package Makefile stuff...
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# #
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# .include "../../mk/pthread.buildlink.mk"
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#
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# The value of ${PTHREAD_TYPE} may be used after the inclusion of
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# bsd.prefs.mk, which indirectly sets this value by including this file.
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# E.g.,
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# .if defined(PTHREAD_TYPE) && (${PTHREAD_TYPE} == "none")
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# CONFIGURE_ARGS+= --without-pthreads
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# .endif
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#
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# USE_PTHREAD= native
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# .include "../../mk/bsd.prefs.mk"
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# .include "../../mk/bsd.pkg.mk"
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#
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# .if defined(PTHREAD_TYPE) && ${PTHREAD_TYPE} == "none"
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# CONFIGURE_ARGS+= --without-pthreads
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# .endif
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# Note that it's only safe to check and use the value of PTHREAD_TYPE
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# after all other buildlink.mk files have been included.
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#
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# (2) Add "native" to PTHREAD_OPTS prior to including
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# pthread.buildlink.mk. This is like case (1), but we only check for
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# the native pthread library, e.g.,
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#
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# PTHREAD_OPTS+= native
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# #
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# # package Makefile stuff...
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# #
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# .include "../../mk/pthread.buildlink.mk"
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#
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# .if defined(PTHREAD_TYPE) && (${PTHREAD_TYPE} == "none")
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# CONFIGURE_ARGS+= --without-pthreads
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# .endif
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#
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# .include "../../mk/bsd.pkg.mk"
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#
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# (3) Add "require" to PTHREAD_OPTS prior to including
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# pthread.buildlink.mk. This will make the package use the native
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# pthread library or else use the OPR package, and will otherwise set
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# IGNORE if neither can be used, e.g.,
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#
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# PTHREAD_OPTS+= require
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# #
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# # package Makefile stuff...
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# #
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# .include "../../mk/pthread.buildlink.mk"
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# .include "../../mk/bsd.pkg.mk"
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#
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# (4) Add both "require" and "native" to PTHREAD_OPTS prior to including
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# pthread.buildlink.mk. This is like case (3), but we only check for
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# the native pthread library, e.g.,
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#
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# PTHREAD_OPTS+= require native
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# #
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# # more package Makefile stuff...
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# #
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# .include "../../mk/pthread.buildlink.mk"
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# .include "../../mk/bsd.pkg.mk"
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#
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#
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# The case where a package must use either the native pthread library or
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# some pthread package aside from the OPR is a special case of (2), e.g.,
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# if the required pthread package is "ptl2", then:
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#
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# PTHREAD_OPTS+= native
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# #
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# # more package Makefile stuff...
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# #
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# .include "../../mk/pthread.buildlink.mk"
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#
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# .if defined(PTHREAD_TYPE) && (${PTHREAD_TYPE} == "none")
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# . include "../../devel/ptl2/buildlink.mk"
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# .endif
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#
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# .include "../../mk/bsd.pkg.mk"
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#
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###########################################################################
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#
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# USE_PTHREAD is a list of pthread implementations that may be used, and is
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# set in a package Makefile. Its values are either "native" or any
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# of the package pthread implementations listed in ${_PKG_PTHREADS},
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# e.g. "USE_PTHREAD = native pth".
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# PTHREAD_OPTS represents whether this package requires pthreads, and also
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# whether it needs to be native. It may include the word "require"
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# to denote that a pthreads implementation is required, and may also
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# include the word "native" to denote that only native pthreads are
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# acceptable.
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#
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# _PKG_PTHREADS is the list of package pthread implementations recognized by
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# pthread.buildlink.mk
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# _PKG_PTHREAD is the fall-back package pthread implementation use by
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# pthread.buildlink.mk.
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#
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.if defined(USE_PTHREAD)
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_PKG_PTHREADS?= pth pth-syscall ptl2 mit-pthreads unproven-pthreads
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# _PKG_PTHREAD_COMPAT_PATTERNS matches the ONLY_FOR_PLATFORMS from the
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# Makefile for ${_PKG_PTHREAD}. It's used to see if ${_PKG_PTHREADS}
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# can actually be used to replace a native pthreads.
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#
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_PKG_PTHREAD?= pth
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_PKG_PTHREAD_PKGSRCDIR?= ../../devel/${_PKG_PTHREAD}
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_PKG_PTHREAD_BUILDLINK_MK?= ${_PKG_PTHREAD_PKGSRCDIR}/buildlink.mk
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_PKG_PTHREAD_COMPAT_PATTERNS= *-*-*
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.for __valid_pthread__ in ${USE_PTHREAD}
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. if !empty(_PKG_PTHREADS:M${__valid_pthread__})
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_PKG_PTHREAD_TYPE?= ${__valid_pthread__}
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. endif
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.endfor
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_PKG_PTHREAD_TYPE?= none
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.include "../../mk/bsd.prefs.mk"
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# We check for a native pthread implementation by checking for the presence
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PTHREAD_OPTS?= # empty
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# We check for a native pthreads implementation by checking for the presence
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# of /usr/include/pthread.h (we might want to make this check stricter).
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#
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.if !empty(USE_PTHREAD:Mnative)
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. if exists(/usr/include/pthread.h)
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PTHREAD_TYPE?= native
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.undef PTHREAD_TYPE
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PREFER_NATIVE_PTHREADS?= YES
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.if exists(/usr/include/pthread.h) && (${PREFER_NATIVE_PTHREADS} == "YES")
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PTHREAD_TYPE= native
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.else
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. if !empty(PTHREAD_OPTS:Mnative)
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PTHREAD_TYPE= none
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. if !empty(PTHREAD_OPTS:Mrequire)
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IGNORE= "${PKGNAME} requires a native pthreads implementation."
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. endif
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. else
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PTHREAD_TYPE?= ${_PKG_PTHREAD_TYPE}
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PTHREAD_TYPE= none
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. for _pattern_ in ${_PKG_PTHREAD_COMPAT_PATTERNS}
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. if !empty(MACHINE_PLATFORM:M${_pattern_})
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PTHREAD_TYPE= ${_PKG_PTHREAD}
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. endif
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. endfor
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. if (${PTHREAD_TYPE} == "none") && !empty(PTHREAD_OPTS:Mrequire)
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IGNORE= "${PKGNAME} requires a working pthreads implementation."
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. endif
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. endif
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.endif
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.endif # USE_PTHREAD
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#
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###########################################################################
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#
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# Only allow the following section to be seen if this file isn't included
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# from bsd.prefs.mk. This allows this file to be included by bsd.prefs.mk
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# and also to be included in a package Makefile as is done normally, and
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# allows us to consolidate the pthread Makefile logic in one place. We
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# want this, as we'd like for PTHREAD_TYPE to be available to package
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# Makefiles after they pull in bsd.prefs.mk.
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#
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.if !defined(BSD_PREFS_MK)
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.if !defined(PTHREAD_BUILDLINK_MK)
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PTHREAD_BUILDLINK_MK= # defined
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.if ${PTHREAD_TYPE} == "native"
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#
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# Link the native pthread libraries and headers into ${BUILDLINK_DIR}.
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# Link the native pthread libraries and headers into ${BUILDLINK_DIR}.
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#
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. include "../../mk/bsd.buildlink.mk"
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BUILDLINK_PREFIX.pthread= /usr
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BUILDLINK_FILES.pthread= include/pthread.h
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BUILDLINK_FILES.pthread+= lib/libpthread.*
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BUILDLINK_TARGETS.pthread= pthread-buildlink
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BUILDLINK_TARGETS+= ${BUILDLINK_TARGETS.pthread}
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BUILDLINK_TARGETS+= pthread-buildlink
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pre-configure: ${BUILDLINK_TARGETS.pthread}
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pre-configure: pthread-buildlink
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pthread-buildlink: _BUILDLINK_USE
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.elif ${PTHREAD_TYPE} == "pth"
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. include "../../devel/pth/buildlink.mk"
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.elif ${PTHREAD_TYPE} == "pth-syscall"
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. include "../../devel/pth-syscall/buildlink.mk"
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#
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# XXX The remaining pthread packages here need to have sensible buildlink.mk
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# XXX created that may all be used more-or-less interchangeably. This is
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# XXX slightly challenging, so please beware in the implementation.
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#
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.elif ${PTHREAD_TYPE} == "ptl2"
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. include "../../devel/ptl2/buildlink.mk"
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.elif ${PTHREAD_TYPE} == "mit-pthreads"
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DEPENDS+= mit-pthreads-1.60b6:../../devel/mit-pthreads
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.elif ${PTHREAD_TYPE} == "unproven-pthreads"
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. include "../../devel/unproven-pthreads/buildlink.mk"
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.elif ${PTHREAD_TYPE} == "${_PKG_PTHREAD}"
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. if exists(${_PKG_PTHREAD_BUILDLINK_MK})
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. include "${_PKG_PTHREAD_BUILDLINK_MK}"
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. else
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IGNORE= "${PKGNAME} needs pthreads, but ${_PKG_PTHREAD_BUILDLINK_MK} is missing."
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. endif
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.endif
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.endif # PTHREAD_BUILDLINK_MK
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.endif # BSD_PREFS_MK
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