189 lines
6.2 KiB
Makefile
189 lines
6.2 KiB
Makefile
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# $NetBSD: pthread.buildlink3.mk,v 1.1 2004/01/03 23:06:44 jlam Exp $
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#
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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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# (1) Simply include pthread.buildlink3.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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# #
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# # package Makefile stuff...
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# #
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# .include "../../mk/pthread.buildlink3.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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# Note that it's only safe to check and use the value of PTHREAD_TYPE
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# after all other buildlink3.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.buildlink3.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.buildlink3.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.buildlink3.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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# PKG_SKIP_REASON 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.buildlink3.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.buildlink3.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.buildlink3.mk"
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# .include "../../mk/bsd.pkg.mk"
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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.buildlink3.mk"
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#
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# .if defined(PTHREAD_TYPE) && ${PTHREAD_TYPE} == "none"
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# . include "../../devel/ptl2/buildlink3.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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# A package Makefile may add the word "optional" to PTHREAD_OPTS, which
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# will override the effects of any instance of the word "require". This
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# should _only_ be used by those packages that can be built with or
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# without pthreads _independently_ of whether any of its dependencies need
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# pthreads. Currently, this only only www/mozilla, which uses its own
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# threading library if native pthreads is unavailable, despite that it
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# uses GTK+, which _does_ need pthreads.
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#
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###########################################################################
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#
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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_PTHREAD is the fall-back package pthread implementation use by
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# pthread.buildlink3.mk.
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#
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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 ${_PKG_PTHREADS}
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# can actually be used to replace a native pthreads.
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#
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_PKG_PTHREAD?= pth
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_PKG_PTHREAD_DEPENDS?= pth>=2.0.0
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_PKG_PTHREAD_PKGSRCDIR?= ../../devel/${_PKG_PTHREAD}
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_PKG_PTHREAD_BUILDLINK3_MK?= ${_PKG_PTHREAD_PKGSRCDIR}/buildlink3.mk
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_PKG_PTHREAD_COMPAT_PATTERNS= *-*-*
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.include "../../mk/bsd.prefs.mk"
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PTHREAD_OPTS?= # empty
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#
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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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.undef PTHREAD_TYPE
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PREFER_NATIVE_PTHREADS?= YES
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.if exists(/usr/include/pthread.h) && ${PREFER_NATIVE_PTHREADS} == "YES"
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PTHREAD_TYPE= native
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.else
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. if !empty(PTHREAD_OPTS:Mnative)
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PTHREAD_TYPE= none
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. if !empty(PTHREAD_OPTS:Mrequire) && empty(PTHREAD_OPTS:Moptional)
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PKG_SKIP_REASON= "${PKGNAME} requires a native pthreads implementation."
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. endif
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. else
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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 ${PTHREAD_TYPE} == "none" && \
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!empty(PTHREAD_OPTS:Mrequire) && empty(PTHREAD_OPTS:Moptional)
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PKG_SKIP_REASON= "${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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.if !defined(PTHREAD_BUILDLINK3_MK)
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PTHREAD_BUILDLINK3_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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#
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BUILDLINK_PREFIX.pthread= /usr
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BUILDLINK_CFLAGS.pthread= -pthread
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BUILDLINK_LDFLAGS.pthread= # empty
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#
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# Handle systems which have pthreads functions in libc_r such as
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# FreeBSD 5.x, or fall back to libc if we don't find libc_r.
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#
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. if exists(/usr/lib/libpthread.so) || exists(/lib/libpthread.so)
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BUILDLINK_LDADD.pthread= -lpthread
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. elif exists(/usr/lib/libc_r.so)
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BUILDLINK_LDADD.pthread= -lc_r
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. else
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BUILDLINK_LDADD.pthread= # empty
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. endif
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.elif ${PTHREAD_TYPE} == "${_PKG_PTHREAD}"
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. if exists(${_PKG_PTHREAD_BUILDLINK3_MK})
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. if !empty(_PKG_PTHREAD_DEPENDS)
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BUILDLINK_DEPENDS.${_PKG_PTHREAD}= ${_PKG_PTHREAD_DEPENDS}
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. endif
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BUILDLINK_PREFIX.pthread= ${BUILDLINK_PREFIX.${_PKG_PTHREAD}}
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BUILDLINK_CFLAGS.pthread= ${BUILDLINK_CFLAGS.${_PKG_PTHREAD}}
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BUILDLINK_LDFLAGS.pthread= ${BUILDLINK_LDFLAGS.${_PKG_PTHREAD}}
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BUILDLINK_LDADD.pthread= -lpthread
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. include "${_PKG_PTHREAD_BUILDLINK3_MK}"
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. else
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PKG_SKIP_REASON= "${PKGNAME} needs pthreads, but ${_PKG_PTHREAD_BUILDLINK3_MK} is missing."
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. endif
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.endif
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# Define user-visible PTHREAD_CFLAGS and PTHREAD_LDFLAGS as compiler
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# options used to compile/link pthreaded code.
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#
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PTHREAD_CFLAGS= ${BUILDLINK_CFLAGS.pthread}
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PTHREAD_LDFLAGS= ${BUILDLINK_LDFLAGS.pthread} ${BUILDLINK_LDADD.pthread}
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PTHREADBASE= ${BUILDLINK_PREFIX.pthread}
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CONFIGURE_ENV+= PTHREADBASE=${PTHREADBASE}
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MAKE_ENV+= PTHREADBASE=${PTHREADBASE}
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.endif # PTHREAD_BUILDLINK3_MK
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