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# $FreeBSD$
#
# Provide support to use perl5
#
# MAINTAINER: perl@FreeBSD.org
#
# PERL5         - Set to full path of perl5, either in the system or
#                 installed from a port.
# PERL          - Set to full path of perl5, either in the system or
#                 installed from a port, but without the version number.
#                 Use this if you need to replace "#!" lines in scripts.
# PERL_VERSION  - Full version of perl5 (see below for current value).
# 
# PERL_VER  - Short version of perl5 (major.minor without patchlevel)
#
# PERL_LEVEL    - Perl version as an integer of the form MNNNPP, where
#                 M is major version, N is minor version, and P is
#                 the patch level. E.g., PERL_VERSION=5.14.2 would give
#                 a PERL_LEVEL of 501402. This can be used in comparisons
#                 to determine if the version of perl is high enough,
#                 whether a particular dependency is needed, etc.
# PERL_ARCH     - Directory name of architecture dependent libraries
#                 (value: mach).
# PERL_PORT     - Name of the perl port that is installed
#                 (value: perl5.14)
# SITE_PERL     - Directory name where site specific perl packages go.
#                 This value is added to PLIST_SUB.
# USE_PERL5     - If set, this port uses perl5 in one or more of the extract,
#                 patch, build, install or run phases

.if !defined(_INCLUDE_USES_PERL5_MK)
_INCLUDE_USES_PERL5_MK= yes

.if defined(perl5_ARGS)
IGNORE= Incorrect 'USES+=perl5:${perl5_ARGS}' perl5 takes no arguments
.endif

USE_PERL5?= run build

.if exists(${LOCALBASE}/bin/perl5)
.sinclude "${LOCALBASE}/etc/perl5_version"
.if !defined(PERL_VERSION)
PERL_VERSION!=  perl -e 'printf "%vd\n", $$^V;'
.endif
.else
PERL_VERSION?=  5.14.4
.endif

PERL_VER?=  ${PERL_VERSION:C/\.[0-9]+$//}

.if !defined(PERL_LEVEL) && defined(PERL_VERSION)
perl_major=     ${PERL_VERSION:C|^([1-9]+).*|\1|}
_perl_minor=    00${PERL_VERSION:C|^([1-9]+)\.([0-9]+).*|\2|}
perl_minor=     ${_perl_minor:C|^.*(...)|\1|}
.if ${perl_minor} >= 100
perl_minor=     ${PERL_VERSION:C|^([1-9]+)\.([0-9][0-9][0-9]).*|\2|}
perl_patch=     ${PERL_VERSION:C|^.*(..)|\1|}
.else # ${perl_minor} < 100
_perl_patch=    0${PERL_VERSION:C|^([1-9]+)\.([0-9]+)\.*|0|}
perl_patch=     ${_perl_patch:C|^.*(..)|\1|}
.endif # ${perl_minor} < 100
PERL_LEVEL= ${perl_major}${perl_minor}${perl_patch}
.else
PERL_LEVEL=0
.endif # !defined(PERL_LEVEL) && defined(PERL_VERSION)

PERL_ARCH?=     mach

# there must always be a default to prevent dependency failures such
# as "ports/lang: not found"
.if    ${PERL_LEVEL} >= 501800
PERL_PORT?= perl5.18
.if    ${PERL_LEVEL} >= 501600
PERL_PORT?= perl5.16
.elif  ${PERL_LEVEL} >= 501400
PERL_PORT?= perl5.14
.else  # ${PERL_LEVEL} < 501400
PERL_PORT?= perl5.12
.endif

SITE_PERL_REL?= lib/perl5/site_perl/${PERL_VER}
SITE_PERL?= ${LOCALBASE}/${SITE_PERL_REL}

PERL5=      ${LOCALBASE}/bin/perl${PERL_VERSION}
PERL=       ${LOCALBASE}/bin/perl

# Define the want perl first if defined
.if ${USE_PERL5:M5*}
want_perl_sign=     ${USE_PERL5:M5*:C|^[0-9.]+||}
want_perl_ver=      ${USE_PERL5:M5*:S|${want_perl_sign}$||}
want_perl_major=    ${want_perl_ver:C|\..*||}
_want_perl_minor=   ${want_perl_ver:S|^${want_perl_major}||:S|^.||:C|\..*||}
_want_perl_patch=   ${want_perl_ver:S|^${want_perl_major}||:S|^.${_want_perl_minor}||:S|^.||:C|\..*||}
want_perl_minor=    ${_want_perl_minor:S|^|000|:C|.*(...)|\1|}
want_perl_patch=    ${_want_perl_patch:S|^|00|:C|.*(..)|\1|}
USE_PERL5_LEVEL=    ${want_perl_major}${want_perl_minor}${want_perl_patch}
.endif

# All but version
_USE_PERL5= ${USE_PERL5:N5*}

# Mask unspecified components. E.g. this way "5" will match any "5.x.x".
.if empty(_want_perl_minor)
masked_PERL_LEVEL=  ${PERL_LEVEL:C|(.....)$|00000|}
.elif empty(_want_perl_patch)
masked_PERL_LEVEL=  ${PERL_LEVEL:C|(..)$|00|}
.else
masked_PERL_LEVEL=  ${PERL_LEVEL}
.endif

.if defined(want_perl_sign)
.if ${want_perl_sign} == "+"
.if ${USE_PERL5_LEVEL} > ${masked_PERL_LEVEL}
USE_PERL5_REASON?=  requires Perl ${want_perl_ver} or later, install lang/perl${want_perl_major}.${want_perl_minor:C|^0||} and try again
IGNORE= ${USE_PERL5_REASON}
.endif # ${USE_PERL5_LEVEL} > ${masked_PERL_LEVEL}
.elif ${want_perl_sign} == ""
.if ${USE_PERL5_LEVEL} != ${masked_PERL_LEVEL}
USE_PERL5_REASON?=  requires Perl ${want_perl_ver} exactly
IGNORE= ${USE_PERL5_REASON}
.endif # ${USE_PERL5_LEVEL} != ${masked_PERL_LEVEL}
.elif ${want_perl_sign} == "-"
.if ${USE_PERL5_LEVEL} <= ${masked_PERL_LEVEL}
USE_PERL5_REASON?=  requires a Perl version earlier than ${want_perl_ver}
IGNORE= ${USE_PERL5_REASON}
.endif # ${USE_PERL5_LEVEL} <= ${masked_PERL_LEVEL}
.else # wrong suffix
IGNORE= improper use of USE_PERL5
.endif
.endif

_USES_POST+=    perl5
.endif

.if defined(_POSTMKINCLUDED) && !defined(_INCLUDE_USES_PERL5_POST_MK)
_INCLUDE_USES_PERL5_POST_MK=    yes

PLIST_SUB+= PERL_VERSION=${PERL_VERSION} \
        PERL_VER=${PERL_VER} \
        PERL_ARCH=${PERL_ARCH} \
        SITE_PERL=${SITE_PERL_REL}

# handle perl5 specific manpages
.for sect in 1 2 3 4 5 6 7 8 9
.if defined(P5MAN${sect})
_MANPAGES+= ${P5MAN${sect}:S%^%${PREFIX}/lib/perl5/${PERL_VER}/man/man${sect}/%}
.endif
.endfor

.if ${_USE_PERL5:Mmodbuild}
_USE_PERL5+=        configure
CONFIGURE_SCRIPT?=  Build.PL
.if ${PORTNAME} != Module-Build
BUILD_DEPENDS+=     ${SITE_PERL}/Module/Build.pm:${PORTSDIR}/devel/p5-Module-Build
.endif
ALL_TARGET?=
PL_BUILD?=      Build
CONFIGURE_ARGS+= \
        create_packlist=0 \
        install_path=lib="${PREFIX}/${SITE_PERL_REL}" \
        install_path=arch="${PREFIX}/${SITE_PERL_REL}/${PERL_ARCH}" \
        install_path=script="${PREFIX}/bin" \
        install_path=bin="${PREFIX}/bin" \
        install_path=libdoc="${MAN3PREFIX}/man/man3" \
        install_path=bindoc="${MAN1PREFIX}/man/man1"
.elif ${_USE_PERL5:Mconfigure}
CONFIGURE_ARGS+=    INSTALLDIRS="site"
.endif # modbuild

.if ${_USE_PERL5:Mconfigure}
_USE_PERL5+=    build run
# Disable AutoInstall from attempting to install from CPAN directly in
# the case of missing dependencies.  This causes the build to loop on
# the build cluster asking for interactive input.
CONFIGURE_ENV+= PERL_EXTUTILS_AUTOINSTALL="--skipdeps"
.if defined(BATCH) && !defined(IS_INTERACTIVE)
CONFIGURE_ENV+= PERL_MM_USE_DEFAULT="YES"
.endif # defined(BATCH) && !defined(IS_INTERACTIVE)
.endif # configure

.if ${_USE_PERL5:Mextract}
EXTRACT_DEPENDS+=   ${PERL5}:${PORTSDIR}/lang/${PERL_PORT}
.endif

.if ${_USE_PERL5:Mpatch}
PATCH_DEPENDS+=     ${PERL5}:${PORTSDIR}/lang/${PERL_PORT}
.endif

.if ${_USE_PERL5:Mbuild}
BUILD_DEPENDS+=     ${PERL5}:${PORTSDIR}/lang/${PERL_PORT}
.endif

.if ${_USE_PERL5:Mrun}
RUN_DEPENDS+=       ${PERL5}:${PORTSDIR}/lang/${PERL_PORT}
.endif

.if ${_USE_PERL5:Mconfigure}
CONFIGURE_ARGS+=    CC="${CC}" CCFLAGS="${CFLAGS}" PREFIX="${PREFIX}" \
            INSTALLPRIVLIB="${PREFIX}/lib" INSTALLARCHLIB="${PREFIX}/lib"
CONFIGURE_SCRIPT?=  Makefile.PL
MAN3PREFIX?=        ${PREFIX}/lib/perl5/${PERL_VER}
.undef HAS_CONFIGURE

.if !target(do-configure)
do-configure:
    @if [ -f ${SCRIPTDIR}/configure ]; then \
        cd ${.CURDIR} && ${SETENV} ${SCRIPTS_ENV} ${SH} \
          ${SCRIPTDIR}/configure; \
    fi
    @cd ${CONFIGURE_WRKSRC} && \
        ${SETENV} ${CONFIGURE_ENV} \
        ${PERL5} ./${CONFIGURE_SCRIPT} ${CONFIGURE_ARGS}
.if !${_USE_PERL5:Mmodbuild}
    @cd ${CONFIGURE_WRKSRC} && \
        ${PERL5} -pi -e 's/ doc_(perl|site|\$$\(INSTALLDIRS\))_install$$//' Makefile
.endif # ! modbuild
.endif # !target(do-configure)
.endif # configure

.if ${_USE_PERL5:Mmodbuild}
.if !target(do-build)
do-build:
    @(cd ${BUILD_WRKSRC}; ${SETENV} ${MAKE_ENV} ${PERL5} ${PL_BUILD} ${MAKE_ARGS} ${ALL_TARGET})
.endif # !target(do-build)

.if !${USES:Mgmake}
.if !target(do-install)
do-install:
    @(cd ${BUILD_WRKSRC}; ${SETENV} ${MAKE_ENV} ${PERL5} ${PL_BUILD} ${MAKE_ARGS} ${INSTALL_TARGET})
.endif # !target(do-install)
.endif # ! USES=gmake
.endif # modbuild
.endif # defined(_POSTMKINCLUDED)