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# $NetBSD: buildlink.mk,v 1.5 2001/07/27 13:33:18 jlam Exp $
#
# This Makefile fragment is included by packages that use bzip2.
#
# To use this Makefile fragment, simply:
#
# (1) Optionally define BUILDLINK_DEPENDS.bzip2 to the dependency pattern
# for the version of bzip2 desired.
# (2) Include this Makefile fragment in the package Makefile,
# (3) Add ${BUILDLINK_DIR}/include to the front of the C preprocessor's header
# search path, and
# (4) Add ${BUILDLINK_DIR}/lib to the front of the linker's library search
# path.
.if !defined(BZIP2_BUILDLINK_MK)
BZIP2_BUILDLINK_MK= # defined
.include "../../mk/bsd.buildlink.mk"
BUILDLINK_DEPENDS.bzip2?= bzip2>=1.0.1
.include "../../mk/bsd.prefs.mk"
.if exists(/usr/include/bzlib.h)
#
# Recent versions of the libbz2 API prefix all functions with "BZ2_".
#
_BUILTIN_BZIP2!= ${EGREP} -c "BZ2_" /usr/include/bzlib.h || ${TRUE}
.else
_BUILTIN_BZIP2!= 0
.endif
.if ${_BUILTIN_BZIP2} == "0"
_NEED_BZIP2= YES
.else
_NEED_BZIP2= NO
.endif
.if ${_NEED_BZIP2} == "YES"
DEPENDS+= ${BUILDLINK_DEPENDS.bzip2}:../../archivers/bzip2
EVAL_PREFIX+= BUILDLINK_PREFIX.bzip2=bzip2
BUILDLINK_PREFIX.bzip2_DEFAULT= ${LOCALBASE}
.else
BUILDLINK_PREFIX.bzip2= /usr
.endif
BUILDLINK_FILES.bzip2= include/bzlib.h
BUILDLINK_FILES.bzip2+= lib/libbz2.*
BUILDLINK_TARGETS.bzip2= bzip2-buildlink
BUILDLINK_TARGETS+= ${BUILDLINK_TARGETS.bzip2}
pre-configure: ${BUILDLINK_TARGETS.bzip2}
bzip2-buildlink: _BUILDLINK_USE
.endif # BZIP2_BUILDLINK_MK
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