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# $NetBSD: pthread.buildlink.mk,v 1.4 2002/03/23 01:24:44 dmcmahill Exp $
#
# This Makefile fragment is included by packages that use pthreads.
# This Makefile fragment is also included directly by bsd.prefs.mk.
#
# To use this Makefile fragment, simply:
#
# (1) Define USE_PTHREAD _before_ including bsd.prefs.mk in the package
# Makefile,
# (2) Optionally set PTHREAD_TYPE to force the use of a specific pthread
# implementation,
# (3) Include bsd.prefs.mk in the package Makefile,
# (4) And include this Makefile fragment in the package Makefile.
#
# The value of ${PTHREAD_TYPE} may be used after the inclusion of
# bsd.prefs.mk, which indirectly sets this value by including this file.
# E.g.,
#
# USE_PTHREAD= native
# .include "../../mk/bsd.prefs.mk"
#
# .if defined(PTHREAD_TYPE) && ${PTHREAD_TYPE} == "none"
# CONFIGURE_ARGS+= --without-pthreads
# .endif
#
###########################################################################
#
# USE_PTHREAD is a list of pthread implementations that may be used, and is
# set in a package Makefile. Its values are either "native" or any
# of the package pthread implementations listed in ${_PKG_PTHREADS},
# e.g. "USE_PTHREAD = native pth".
#
# _PKG_PTHREADS is the list of package pthread implementations recognized by
# pthread.buildlink.mk
#
.if defined(USE_PTHREAD)
_PKG_PTHREADS?= pth ptl2 mit-pthreads unproven-pthreads
.for __valid_pthread__ in ${USE_PTHREAD}
. if !empty(_PKG_PTHREADS:M${__valid_pthread__})
_PKG_PTHREAD_TYPE?= ${__valid_pthread__}
. endif
.endfor
_PKG_PTHREAD_TYPE?= none
# We check for a native pthread implementation by checking for the presence
# of /usr/include/pthread.h (we might want to make this check stricter).
#
.if !empty(USE_PTHREAD:Mnative)
. if exists(/usr/include/pthread.h)
PTHREAD_TYPE?= native
. else
PTHREAD_TYPE?= ${_PKG_PTHREAD_TYPE}
. endif
.endif
.endif # USE_PTHREAD
#
###########################################################################
#
# Only allow the following section to be seen if this file isn't included
# from bsd.prefs.mk. This allows this file to be included by bsd.prefs.mk
# and also to be included in a package Makefile as is done normally, and
# allows us to consolidate the pthread Makefile logic in one place. We
# want this, as we'd like for PTHREAD_TYPE to be available to package
# Makefiles after they pull in bsd.prefs.mk.
#
.if !defined(BSD_PREFS_MK)
.if !defined(PTHREAD_BUILDLINK_MK)
PTHREAD_BUILDLINK_MK= # defined
.if ${PTHREAD_TYPE} == "native"
#
# Link the native pthread libraries and headers into ${BUILDLINK_DIR}.
#
. include "../../mk/bsd.buildlink.mk"
BUILDLINK_PREFIX.pthread= /usr
BUILDLINK_FILES.pthread= include/pthread.h
BUILDLINK_FILES.pthread+= lib/libpthread.*
BUILDLINK_TARGETS.pthread= pthread-buildlink
BUILDLINK_TARGETS+= ${BUILDLINK_TARGETS.pthread}
pre-configure: ${BUILDLINK_TARGETS.pthread}
pthread-buildlink: _BUILDLINK_USE
.elif ${PTHREAD_TYPE} == "pth"
. include "../../devel/pth/buildlink.mk"
#
# XXX The remaining pthread packages here need to have sensible buildlink.mk
# XXX created that may all be used more-or-less interchangeably. This is
# XXX slightly challenging, so please beware in the implementation.
#
.elif ${PTHREAD_TYPE} == "ptl2"
. include "../../devel/ptl2/buildlink.mk"
.elif ${PTHREAD_TYPE} == "mit-pthreads"
DEPENDS+= mit-pthreads-1.60b6:../../devel/mit-pthreads
.elif ${PTHREAD_TYPE} == "unproven-pthreads"
. include "../../devel/unproven-pthreads/buildlink.mk"
.endif
.endif # PTHREAD_BUILDLINK_MK
.endif # BSD_PREFS_MK
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