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# $FreeBSD$
#
# MAINTAINER: portmgr@FreeBSD.org
#
# Feature:  fam
# Usage:    USES=fam or USES=fam:ARG
# Valid ARG:    gamin, fam
#
# User-specified File Alteration Monitor wish:
# Usage:    WITH_FAM_SYSTEM=ARG
# Valid ARG:    gamin (default), fam
#
# Handle dependency on File Alteration Monitor

.if !defined(_INCLUDE_USES_FAM_MK)
_INCLUDE_USES_FAM_MK=   yes

_fam_DEPENDS=   libfam.so.0:devel/fam
_gamin_DEPENDS= libfam.so.0:devel/gamin

_FAM_SYSTEMS=   fam gamin
_DEFAULT_FAM=   gamin

.if exists(${LOCALBASE}/libexec/gam_server)
_HAVE_FAM=  gamin
.elif exists(${LOCALBASE}/bin/fam)
_HAVE_FAM=  fam
.endif

# Sanity checks
.if defined(WITH_FAM_SYSTEM) && defined(_HAVE_FAM) && ${_HAVE_FAM} != ${WITH_FAM_SYSTEM}
IGNORE= FAM mismatch: ${_HAVE_FAM} is installed, but ${WITH_FAM_SYSTEM} desired
.endif

.if !empty(fam_ARGS)
.for _fam_ARGS in ${fam_ARGS}
.  if ! ${_FAM_SYSTEMS:M${_fam_ARGS}}
IGNORE= Incorrect 'USES+= fam:${fam_ARGS}' usage: argument [${_fam_ARGS}] is not recognized
.  endif
.endfor
.  if defined(_HAVE_FAM) && ${_HAVE_FAM} != ${fam_ARGS}
IGNORE= FAM mismatch: port wants to use ${fam_ARGS} while you have ${_HAVE_FAM}
.  endif
.  if defined(WITH_FAM_SYSTEM) && ${WITH_FAM_SYSTEM} != ${fam_ARGS}
IGNORE= FAM mismatch: port wants to use ${fam_ARGS} while you wish to use ${WITH_FAM_SYSTEM}
.  endif
.endif

# Proceed
.if !empty(fam_ARGS)
_USE_FAM=   ${fam_ARGS}
.elif defined(_HAVE_FAM)
_USE_FAM=   ${_HAVE_FAM}
.elif defined(WITH_FAM_SYSTEM)
_USE_FAM=   ${WITH_FAM_SYSTEM}
.else
_USE_FAM=   ${_DEFAULT_FAM}
.endif

LIB_DEPENDS+=   ${_${_USE_FAM}_DEPENDS}

.endif