# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$

myconf() {
	# the myconf array is declared in src_configure
	myconf=( "${myconf[@]}" "$@" )
}

eblit-perl-src_configure() {
	declare -a myconf

	export LC_ALL="C"
	[[ ${COLUMNS:-1} -ge 1 ]] || unset COLUMNS # bug #394091

	# some arches and -O do not mix :)
	use ppc && replace-flags -O? -O1
	# Perl has problems compiling with -Os in your flags with glibc
	use elibc_uclibc || replace-flags "-Os" "-O2"
	# This flag makes compiling crash in interesting ways
	filter-flags "-malign-double"
	# Fixes bug #97645
	use ppc && filter-flags "-mpowerpc-gpopt"
	# Fixes bug #143895 on gcc-4.1.1
	filter-flags "-fsched2-use-superblocks"

	use sparc && myconf -Ud_longdbl

	export BUILD_BZIP2=0
	export BZIP2_INCLUDE=${EPREFIX}/usr/include
	export BZIP2_LIB=${EPREFIX}/usr/$(get_libdir)

	export BUILD_ZLIB=False
	export ZLIB_INCLUDE=${EPREFIX}/usr/include
	export ZLIB_LIB=${EPREFIX}/usr/$(get_libdir)

	# allow either gdbm to provide ndbm (in <gdbm/ndbm.h>) or db1

	myndbm='U'
	mygdbm='U'
	mydb='U'

	if use gdbm ; then
		mygdbm='D'
		myndbm='D'
	fi
	if use berkdb ; then
		mydb='D'
		has_version '=sys-libs/db-1*' && myndbm='D'
	fi

	myconf "-${myndbm}i_ndbm" "-${mygdbm}i_gdbm" "-${mydb}i_db"

	if use alpha && [[ "$(tc-getCC)" = "ccc" ]] ; then
		ewarn "Perl will not be built with berkdb support, use gcc if you needed it..."
		myconf -Ui_db -Ui_ndbm
	fi

	use ithreads && myconf -Dusethreads

	if use debug ; then
		append-cflags "-g"
		myconf -DDEBUGGING
	elif [[ ${CFLAGS} == *-g* ]] ; then
		myconf -DDEBUGGING=-g
	else
		myconf -DDEBUGGING=none
	fi

	if [[ -n ${PERL_OLDVERSEN} ]] ; then
		local inclist=$(for v in ${PERL_OLDVERSEN}; do echo -n "${v}/${myarch}${mythreading} ${v} "; done )
		myconf -Dinc_version_list="${inclist}"
	fi

	[[ ${ELIBC} == "FreeBSD" ]] && myconf "-Dlibc=/usr/$(get_libdir)/libc.a"

	# Make sure we can do the final link #523730, need to set deployment
	# target to override hardcoded 10.3 which breaks on modern OSX
	[[ ${CHOST} == *-darwin* ]] && \
		myconf "-Dld=env MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET} $(tc-getCC)"

	# Prefix: the host system needs not to follow Gentoo multilib stuff, and in
	# Prefix itself we don't do multilib either, so make sure perl can find
	# something compatible.
	if use prefix ; then
		# Set a hook to check for each detected library whether it actually works.
		export libscheck="
			( echo 'main(){}' > '${T}'/conftest.c &&
			  $(tc-getCC) -o '${T}'/conftest '${T}'/conftest.c -l\$thislib >/dev/null 2>/dev/null
			) || xxx=/dev/null"

		# Use all host paths that might contain useful stuff, the hook above will filter out bad choices.
		local paths="/lib/*-linux-gnu /usr/lib/*-linux-gnu /lib64 /lib/64 /usr/lib64 /usr/lib/64 /lib32 /usr/lib32 /lib /usr/lib"
		myconf "-Dlibpth=${EPREFIX}/$(get_libdir) ${EPREFIX}/usr/$(get_libdir) ${paths}"
	elif [[ $(get_libdir) != "lib" ]] ; then
		# We need to use " and not ', as the written config.sh use ' ...
		myconf "-Dlibpth=/usr/local/$(get_libdir) /$(get_libdir) /usr/$(get_libdir)"
	fi

	# don't try building ODBM, bug #354453
	disabled_extensions="ODBM_File"

	if ! use gdbm ; then
		# workaround for bug #157774: don't try building GDBM related stuff with USE="-gdbm"
		disabled_extensions="${disabled_extensions} GDBM_File NDBM_File"
	fi

	myconf -Dnoextensions="${disabled_extensions}"

	sh Configure \
		-des \
		-Duseshrplib \
		-Darchname="${myarch}" \
		-Dcc="$(tc-getCC)" \
		-Doptimize="${CFLAGS}" \
		-Dldflags="${LDFLAGS}" \
		-Dprefix="${EPREFIX}"'/usr' \
		-Dinstallprefix="${EPREFIX}"'/usr' \
		-Dsiteprefix="${EPREFIX}"'/usr/local' \
		-Dvendorprefix="${EPREFIX}"'/usr' \
		-Dscriptdir="${EPREFIX}"'/usr/bin' \
		-Dprivlib="${EPREFIX}${PRIV_LIB}" \
		-Darchlib="${EPREFIX}${ARCH_LIB}" \
		-Dsitelib="${EPREFIX}${SITE_LIB}" \
		-Dsitearch="${EPREFIX}${SITE_ARCH}" \
		-Dvendorlib="${EPREFIX}${VENDOR_LIB}" \
		-Dvendorarch="${EPREFIX}${VENDOR_ARCH}" \
		-Dman1dir="${EPREFIX}"/usr/share/man/man1 \
		-Dman3dir="${EPREFIX}"/usr/share/man/man3 \
		-Dsiteman1dir="${EPREFIX}"/usr/local/man/man1 \
		-Dsiteman3dir="${EPREFIX}"/usr/local/man/man3 \
		-Dvendorman1dir="${EPREFIX}"/usr/share/man/man1 \
		-Dvendorman3dir="${EPREFIX}"/usr/share/man/man3 \
		-Dman1ext='1' \
		-Dman3ext='3pm' \
		-Dlibperl="${LIBPERL}" \
		-Dlocincpth="${EPREFIX}"'/usr/include ' \
		-Dglibpth="${EPREFIX}/$(get_libdir) ${EPREFIX}/usr/$(get_libdir)"' ' \
		-Duselargefiles \
		-Dd_semctl_semun \
		-Dcf_by='Gentoo' \
		-Dmyhostname='localhost' \
		-Dperladmin='root@localhost' \
		-Dinstallusrbinperl='n' \
		-Ud_csh \
		-Uusenm \
		"${myconf[@]}" || die "Unable to configure"
}