# $NetBSD: bdb.buildlink3.mk,v 1.12 2004/11/15 17:54:49 jlam Exp $
#
# This Makefile fragment is meant to be included by packages that
# require a Berkeley DB implementation.  bdb.buildlink3.mk will:
#
#       * set BDBBASE to the base directory of the Berkeley DB files;
#	* set BDB_LIBS to the library option needed to link against
#	  the Berkeley DB library;
#       * set BDB_TYPE to the Berkeley DB implementation used.
#
# There are two variables that can be used to tweak the selection of
# the Berkeley DB implementation:
#
# BDB_DEFAULT is a user-settable variable whose value is the default
#       Berkeley DB implementation to use.
#
# BDB_ACCEPTED is a package-settable list of Berkeley DB implementations
#       that may be used by the package.

BDB_BUILDLINK3_MK:=	${BDB_BUILDLINK3_MK}+

.include "../../mk/bsd.prefs.mk"

.if !empty(BDB_BUILDLINK3_MK:M+)

# If we've specified a list of acceptable Berkeley DB packages and it
# doesn't include db1, then don't set USE_DB185 to yes.  The package's
# configure process should know how to probe for the libraries and
# headers on its own.
#
.  if defined(BDB_ACCEPTED) && empty(BDB_ACCEPTED:Mdb1)
USE_DB185?=	no
.  else
USE_DB185?=	yes
.  endif

BDB_DEFAULT?=	# empty
BDB_ACCEPTED?=	${_BDB_PKGS}

# _BDB_PKGS is an exhaustive list of all of the Berkeley DB
# implementations that may be used with bdb.buildlink3.mk, in order
# of precedence.
#
.  if !empty(USE_DB185:M[yY][eE][sS])
CHECK_BUILTIN.db1:=	yes
.    include "../../mk/db1.builtin.mk"
CHECK_BUILTIN.db1:=	no
.    if defined(IS_BUILTIN.db1) && !empty(IS_BUILTIN.db1:M[yY][eE][sS])
# Prefer the builtin db1 support if we requested it
_BDB_PKGS?=	db1 db4 db3 db2
.    else
_BDB_PKGS?=	db4 db3 db2 db1
.    endif
.  else
_BDB_PKGS?=	db4 db3 db2
.  endif

_BDB_PKGBASE.db2=	db
_BDB_PKGSRCDIR.db2=	../../databases/db
.  for _bdb_ in ${_BDB_PKGS}
_BDB_PKGBASE.${_bdb_}?=		${_bdb_}
_BDB_PKGSRCDIR.${_bdb_}?=	../../databases/${_bdb_}
.  endfor

_BDB_DEFAULT=	${BDB_DEFAULT}
_BDB_ACCEPTED=	${BDB_ACCEPTED}

# Mark the acceptable Berkeley DB packages and check which, if any, are
# already installed.
#
.  for _bdb_ in ${_BDB_ACCEPTED}
_BDB_OK.${_bdb_}=	yes
.    if !defined(_BDB_INSTALLED.${_bdb_})
_BDB_INSTALLED.${_bdb_}!=	\
	if ${PKG_INFO} -qe ${_BDB_PKGBASE.${_bdb_}}; then		\
		${ECHO} "yes";						\
	else								\
		${ECHO} "no";						\
	fi
MAKEFLAGS+=	_BDB_INSTALLED.${_bdb_}=${_BDB_INSTALLED.${_bdb_}}
.    endif
.  endfor

.  if defined(USE_BUILTIN.db1)
_BDB_OK.db1=		${USE_BUILTIN.db1}
_BDB_INSTALLED.db1=	${USE_BUILTIN.db1}
.  else
_BDB_OK.db1=		no
_BDB_INSTALLED.db1=	no
.  endif

.  if !defined(_BDB_TYPE)
#
# Prefer the default one if it's accepted,...
#
.    if !empty(_BDB_DEFAULT) && \
	defined(_BDB_OK.${_BDB_DEFAULT}) && \
	!empty(_BDB_OK.${_BDB_DEFAULT}:M[yY][eE][sS])
_BDB_TYPE=	${_BDB_DEFAULT}
.    endif
#
# ...otherwise, use one of the installed Berkeley DB packages,...
#
.    for _bdb_ in ${_BDB_ACCEPTED}
.      if !empty(_BDB_INSTALLED.${_bdb_}:M[yY][eE][sS])
_BDB_TYPE?=	${_bdb_}
.      endif
.    endfor
#
# ...otherwise, just use the first accepted Berkeley DB package.
#
.    for _bdb_ in ${_BDB_ACCEPTED}
_BDB_TYPE?=	${_bdb_}
.    endfor
_BDB_TYPE?=	none
MAKEFLAGS+=	_BDB_TYPE=${_BDB_TYPE}
.  endif

BDB_TYPE=	${_BDB_TYPE}
BUILD_DEFS+=	BDB_TYPE
BUILD_DEFS+=	BDBBASE

# Define some public variables to refer to package-specific variables.
BDBBASE=	${BUILDLINK_PREFIX.${_BDB_PKGBASE.${BDB_TYPE}}}
BDB_LIBS=	${BUILDLINK_LDADD.${_BDB_PKGBASE.${BDB_TYPE}}}

.endif	# BDB_BUILDLINK3_MK

.if ${BDB_TYPE} == "none"
PKG_FAIL_REASON=	"No acceptable Berkeley DB implementation found."
.elif ${BDB_TYPE} == "db1"
BUILDLINK_PACKAGES:=		${BUILDLINK_PACKAGES:Ndb1}
BUILDLINK_PACKAGES+=		db1
BUILDLINK_BUILTIN_MK.db1=	../../mk/db1.builtin.mk
.else
.  include "${_BDB_PKGSRCDIR.${BDB_TYPE}}/buildlink3.mk"
.endif