1 files changed, 157 insertions, 0 deletions
diff --git a/sci-libs/fftw/fftw-2.1.5-r8.ebuild b/sci-libs/fftw/fftw-2.1.5-r8.ebuild
new file mode 100644
index 000000000000..6c1df9055aa4
--- /dev/null
+++ b/sci-libs/fftw/fftw-2.1.5-r8.ebuild
@@ -0,0 +1,157 @@
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=4
+
+FORTRAN_NEEDED=fortran
+
+inherit autotools eutils flag-o-matic fortran-2 toolchain-funcs
+
+DESCRIPTION="Fast C library for the Discrete Fourier Transform"
+SRC_URI="http://www.fftw.org/${P}.tar.gz"
+HOMEPAGE="http://www.fftw.org"
+
+DEPEND="mpi? ( virtual/mpi )"
+RDEPEND="${DEPEND}"
+
+SLOT="2.1"
+LICENSE="GPL-2+"
+IUSE="doc float fortran mpi openmp threads static-libs"
+
+KEYWORDS="alpha amd64 arm hppa ia64 ppc ppc64 s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x86-macos"
+
+pkg_setup() {
+	use openmp && FORTRAN_NEED_OPENMP="1"
+	fortran-2_pkg_setup
+	# this one is reported to cause trouble on pentium4 m series
+	filter-mfpmath "sse"
+
+	# here I need (surprise) to increase optimization:
+	# --enable-i386-hacks requires -fomit-frame-pointer to work properly
+	if use x86; then
+		is-flag "-fomit-frame-pointer" || append-flags "-fomit-frame-pointer"
+	fi
+	if use openmp && [[ $(tc-getCC) == *gcc* ]] && ! tc-has-openmp; then
+		ewarn "You are using gcc and OpenMP is only available with gcc >= 4.2 "
+		ewarn "If you want to build fftw with OpenMP, abort now,"
+		ewarn "and switch CC to an OpenMP capable compiler"
+		ewarn "Otherwise the configure script will select POSIX threads."
+	fi
+	use openmp && [[ $(tc-getCC)$ == icc* ]] && append-ldflags $(no-as-needed)
+}
+
+src_prepare() {
+	# doc suggests installing single and double precision versions
+	#  via separate compilations. will do in two separate source trees
+	# since some sed'ing is done during the build
+	# (?if --enable-type-prefix is set?)
+
+	epatch \
+		"${FILESDIR}"/${P}-as-needed.patch \
+		"${FILESDIR}"/${P}-configure.in.patch \
+		"${FILESDIR}"/${P}-no-test.patch \
+		"${FILESDIR}"/${P}-cc.patch \
+		"${FILESDIR}"/${P}-texinfo5.1.patch
+
+	# fix info files
+	for infofile in doc/fftw*info*; do
+		cat >> ${infofile} <<-EOF
+			INFO-DIR-SECTION Libraries
+			START-INFO-DIR-ENTRY
+			* fftw: (fftw).				${DESCRIPTION}
+			END-INFO-DIR-ENTRY
+		EOF
+	done
+
+	sed -i 's/AM_CONFIG_HEADER/AC_CONFIG_HEADERS/g' configure.in || die
+
+	eautoreconf
+
+	cd "${WORKDIR}"
+	cp -R ${P} ${P}-double
+	mv ${P} ${P}-single
+	ln -s ${P}-single ${P}
+}
+
+src_configure() {
+	local myconf="
+		--enable-shared
+		--enable-type-prefix
+		--enable-vec-recurse
+		$(use_enable fortran)
+		$(use_enable mpi)
+		$(use_enable static-libs static)
+		$(use_enable x86 i386-hacks)"
+	if use openmp; then
+		myconf="${myconf}
+			--enable-threads
+			--with-openmp"
+	elif use threads; then
+		myconf="${myconf}
+			--enable-threads
+			--without-openmp"
+	else
+		myconf="${myconf}
+			--disable-threads
+			--without-openmp"
+	fi
+	cd "${S}-single"
+	econf ${myconf} \
+		--enable-float \
+		--with-gcc=$(tc-getCC)
+
+	cd "${S}-double"
+	econf ${myconf} \
+		--with-gcc=$(tc-getCC)
+}
+
+src_compile() {
+	local dir
+	for dir in "${S}-single" "${S}-double"
+	do
+		einfo "Running compilation in ${dir}"
+		emake -C ${dir}
+	done
+}
+
+src_test() {
+	local dir
+	for dir in "${S}-single" "${S}-double"
+	do
+		einfo "Running tests in ${dir}"
+		emake -C ${dir} -j1 check
+	done
+}
+
+src_install () {
+	# both builds are installed in the same place
+	# libs are distinguished by prefix (s or d), see docs for details
+
+	local dir
+	for dir in "${S}-single" "${S}-double"
+	do
+		emake DESTDIR="${D}" -C ${dir} install
+	done
+
+	insinto /usr/include
+	doins fortran/fftw_f77.i
+	dodoc AUTHORS ChangeLog NEWS TODO README README.hacks
+	use doc && dohtml doc/*
+
+	if use float; then
+		for f in "${ED}"/usr/{include,$(get_libdir)}/*sfft*; do
+			ln -s $(basename ${f}) ${f/sfft/fft}
+		done
+		for f in "${ED}"/usr/{include,$(get_libdir)}/*srfft*; do
+			ln -s $(basename ${f}) ${f/srfft/rfft}
+		done
+	else
+		for f in "${ED}"/usr/{include,$(get_libdir)}/*dfft*; do
+			ln -s $(basename ${f}) ${f/dfft/fft}
+		done
+		for f in "${ED}"/usr/{include,$(get_libdir)}/*drfft*; do
+			ln -s $(basename ${f}) ${f/drfft/rfft}
+		done
+	fi
+}