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# $NetBSD: bsd.options.mk,v 1.21 2005/05/14 02:17:43 rillig Exp $
#
# This Makefile fragment provides boilerplate code for standard naming
# conventions for handling per-package build options.
#
# Before including this file, the following variables can be defined:
#
# PKG_SUPPORTED_OPTIONS (must be defined)
# This is a list of build options supported by the package.
# This variable should be set in a package Makefile. E.g.,
#
# PKG_SUPPORTED_OPTIONS= kerberos ldap ssl
#
# PKG_OPTION_VAR (must be defined)
# The variable the user can set to enable or disable
# options specifically for this package.
#
# PKG_SUGGESTED_OPTIONS (defaults to empty)
# This is a list of build options which are enabled by default.
#
# PKG_OPTION_LEGACY_VARS
# This is a list of USE_VARIABLE:option pairs that
# map legacy /etc/mk.conf variables to their option
# counterparts.
#
#
# Optionally, the user may define the following variables in /etc/mk.conf:
#
# PKG_DEFAULT_OPTIONS
# This variable can be used to override default
# options for every package. Options listed in this
# variable will be enabled in every package that
# supports them. If you prefix an option with `-',
# it will be disabled in every package.
#
# ${PKG_OPTIONS_VAR}
# This variable can be used to override default
# options and options listed in PKG_DEFAULT_OPTIONS.
# The syntax is the same as PKG_DEFAULT_OPTIONS.
#
# After including this file, the following variables are defined:
#
# PKG_OPTIONS
# This is the list of the selected build options, properly
# filtered to remove unsupported and duplicate options.
#
# Example usage:
#
# -------------8<-------------8<-------------8<-------------8<-------------
# PKG_SUPPORTED_OPTIONS= foo ldap sasl
# PKG_SUGGESTED_OPTIONS= foo
# PKG_OPTIONS_LEGACY_VARS+= WIBBLE_USE_OPENLDAP:ldap
# PKG_OPTIONS_LEGACY_VARS+= WIBBLE_USE_SASL2:sasl
#
# .include "../../mk/bsd.options.mk"
#
# # Package-specific option-handling
#
# ###
# ### FOO support
# ###
# .if !empty(PKG_OPTIONS:Mfoo)
# CONFIGURE_ARGS+= --enable-foo
# .endif
# ###
# ### LDAP support
# ###
# .if !empty(PKG_OPTIONS:Mldap)
# . include "../../databases/openldap/buildlink3.mk"
# CONFIGURE_ARGS+= --enable-ldap=${BUILDLINK_PREFIX.openldap}
# .endif
#
# ###
# ### SASL authentication
# ###
# .if !empty(PKG_OPTIONS:Msasl)
# . include "../../security/cyrus-sasl2/buildlink3.mk"
# CONFIGURE_ARGS+= --enable-sasl=${BUILDLINK_PREFIX.sasl}
# .endif
# -------------8<-------------8<-------------8<-------------8<-------------
.include "../../mk/bsd.prefs.mk"
# Define PKG_OPTIONS, no matter if we have an error or not, to suppress
# further make(1) warnings.
PKG_OPTIONS= # empty
# Check for variable definitions required before including this file.
.if !defined(PKG_SUPPORTED_OPTIONS)
PKG_FAIL_REASON+= "bsd.options.mk: PKG_SUPPORTED_OPTIONS is not defined."
.elif !defined(PKG_OPTIONS_VAR)
PKG_FAIL_REASON+= "bsd.options.mk: PKG_OPTIONS_VAR is not defined."
.else # process the rest of the file
# include deprecated variable to options mapping
.include "${.CURDIR}/../../mk/defaults/obsolete.mk"
.for _m_ in ${PKG_OPTIONS_LEGACY_VARS}
.if !empty(PKG_SUPPORTED_OPTIONS:M${_m_:C/.*://}) && defined(${_m_:C/:.*//}) && !empty(${_m_:C/:.*//}:M[yY][eE][sS])
_PKG_LEGACY_OPTIONS+=${_m_:C/.*://}
_DEPRECATED_WARNING+="Deprecated variable "${_m_:C/:.*//:Q}" used, use PKG_DEFAULT_OPTIONS+="${_m_:C/.*://:Q}" instead."
.endif
.endfor
#
# reverse options in PKG_OPTIONS_VAR for backwards compatibility to
# PKG_OPTIONS.foo=${PKG_DEFAULT_OPTIONS} -foo
#
_PKG_OPTIONS_USER=#empty
.for _opt_ in ${${PKG_OPTIONS_VAR}}
_PKG_OPTIONS_USER:=${_opt_} ${_PKG_OPTIONS_USER}
.endfor
#
# process options from specific to generic
#
PKG_OPTIONS=#empty
_PKG_OPTIONS_NOT=#empty
.for _opt_ in ${_PKG_OPTIONS_USER} ${PKG_DEFAULT_OPTIONS} ${_PKG_LEGACY_OPTIONS} ${PKG_SUGGESTED_OPTIONS}
_tmp_=${_opt_}
. if !empty(_tmp_:M-*) && empty(_PKG_OPTIONS_NOT:M${_opt_})
_PKG_OPTIONS_NOT+=${_opt_}
. elif empty(PKG_OPTIONS:M${_opt_}) && !empty(PKG_SUPPORTED_OPTIONS:M${_opt_}) && empty(_PKG_OPTIONS_NOT:M-${_opt_})
PKG_OPTIONS+=${_opt_}
. endif
.endfor
.undef _opt_
.undef _tmp_
.undef _PKG_OPTIONS_NOT
.undef _PKG_OPTIONS_USER
_PKG_OPTIONS_WORDWRAP_FILTER= \
${AWK} ' \
BEGIN { printwidth = 40; line = "" } \
{ \
if (length(line) > 0) \
line = line" "$$0; \
else \
line = $$0; \
if (length(line) > 40) { \
print " "line; \
line = ""; \
} \
} \
END { if (length(line) > 0) print " "line } \
'
.PHONY: describe-options
describe-options:
@${ECHO} The following options are supported by this package:
.for _opt_ in ${PKG_SUPPORTED_OPTIONS:O}
@${ECHO} " "${_opt_:Q}" "`${SED} -n "s/^"${_opt_:Q}" //p" ../../mk/defaults/options.description`
.endfor
@${ECHO}
@${ECHO} "These options are enabled by default: "${PKG_SUGGESTED_OPTIONS:O:Q}
@${ECHO} "These options are currently enabled: "${PKG_OPTIONS:O:Q}
.PHONY: show-options
show-options:
@${ECHO} "available: "${PKG_SUPPORTED_OPTIONS:O:Q}
@${ECHO} "default: "${PKG_SUGGESTED_OPTIONS:O:Q}
@${ECHO} "enabled: "${PKG_OPTIONS:O:Q}
.if defined(PKG_SUPPORTED_OPTIONS)
.PHONY: supported-options-message
pre-extract: supported-options-message
supported-options-message:
. if !empty(PKG_SUPPORTED_OPTIONS)
@${ECHO} "=========================================================================="
@${ECHO} "The supported build options for this package are:"
@${ECHO} ""
@${ECHO} ${PKG_SUPPORTED_OPTIONS:O:Q} | ${XARGS} -n 1 | ${_PKG_OPTIONS_WORDWRAP_FILTER}
. if !empty(PKG_OPTIONS)
@${ECHO} ""
@${ECHO} "The currently selected options are:"
@${ECHO} ""
@${ECHO} ${PKG_OPTIONS:O:Q} | ${XARGS} -n 1 | ${_PKG_OPTIONS_WORDWRAP_FILTER}
. endif
@${ECHO} ""
@${ECHO} "You can select which build options to use by setting PKG_DEFAULT_OPTIONS"
@${ECHO} "or the following variable. Its current value is shown:"
@${ECHO} ""
. if !defined(${PKG_OPTIONS_VAR})
@${ECHO} " ${PKG_OPTIONS_VAR} (not defined)"
. else
@${ECHO} " ${PKG_OPTIONS_VAR} = ${${PKG_OPTIONS_VAR}}"
. endif
. if defined(_DEPRECATED_WARNING)
@${ECHO}
@for l in ${_DEPRECATED_WARNING}; \
do \
${ECHO} "$$l"; \
done
. endif
@${ECHO} ""
@${ECHO} "=========================================================================="
. endif
.endif
.endif # defined(PKG_OPTIONS_VAR) && defined(PKG_SUPPORTED_OPTIONS)
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