2 files changed, 84 insertions, 0 deletions
diff --git a/dev-libs/fftw/fftw-2.1.3.ebuild b/dev-libs/fftw/fftw-2.1.3.ebuild
new file mode 100644
index 000000000000..99fbc5209d3d
--- /dev/null
+++ b/dev-libs/fftw/fftw-2.1.3.ebuild
@@ -0,0 +1,83 @@
+# Copyright 1999-2002 Gentoo Technologies, Inc.
+# Distributed under the terms of the GNU General Public License, v2 or later
+# Maintainer: George Shapovalov <george@gentoo.org>
+# /space/gentoo/cvsroot/gentoo-x86/skel.ebuild,v 1.4 2002/03/12 16:05:09 tod Exp
+
+S="${WORKDIR}/${P}"
+
+DESCRIPTION="C subroutine library for computing the Discrete Fourier Transform (DFT)"
+
+SRC_URI="http://www.fftw.org/${P}.tar.gz"
+HOMEPAGE="http://www.fftw.org"
+
+DEPEND="mpi? ( >=lam-6.5.6 )"
+#will just leave this as a dependency on mpi for now until I test if lam does not brake anything on uniproc systems.
+
+RDEPEND="${DEPEND}"
+
+src_unpack() {
+	#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?)
+	
+    unpack "${P}.tar.gz"
+    cd "${WORKDIR}"
+	mv ${P} ${P}-single
+	
+    unpack "${P}.tar.gz"
+    cd "${WORKDIR}"
+	mv ${P} ${P}-double
+
+    cd "${S}"
+}
+
+
+src_compile() {
+
+	#here I need (surprise) to increase optimization:
+	#--enable-i386-hacks requires -fomit-frame-pointer to work properly
+	export CFLAGS="${CFLAGS/-fomit-frame-pointer/} -fomit-frame-pointer"
+
+	local myconf=""
+	use mpi && myconf="${myconf} --enable-mpi" 
+	#mpi is not a valid flag yet. In this revision it is used merely to block --enable-mpi option
+	#it might be needed if it is decided that lam is an optional dependence
+	
+	cd "${S}-single"
+	./configure \
+		--host=${CHOST} ${myconf} \
+		--prefix=/usr \
+		--enable-shared --enable-threads \
+		--enable-type-prefix --enable-float \
+		--enable-i386-hacks --enable-vec-recurse \
+		--infodir=/usr/share/info \
+		--mandir=/usr/share/man || die "./configure failed"
+	emake || die
+
+	#the only difference here is no --enable-float
+	cd "${S}-double"
+	./configure \
+		--host=${CHOST} ${myconf} \
+		--prefix=/usr \
+		--enable-shared --enable-threads \
+		--enable-type-prefix \
+		--enable-i386-hacks --enable-vec-recurse \
+		--infodir=/usr/share/info \
+		--mandir=/usr/share/man || die "./configure failed"
+	emake || die
+}
+
+src_install () {
+	#both builds are installed in the same place
+	#libs are distinguished by preffix (s or d), see docs for details
+	cd "${S}-single"
+	make DESTDIR=${D} install || die
+	
+	cd "${S}-double"
+	make DESTDIR=${D} install || die
+
+	# Install documentation.
+	cd "${S}-single"
+	dodoc AUTHORS ChangeLog COPYING INSTALL NEWS  TODO
+	dohtml doc/fftw*.html
+}
diff --git a/dev-libs/fftw/files/digest-fftw-2.1.3 b/dev-libs/fftw/files/digest-fftw-2.1.3
new file mode 100644
index 000000000000..6490784c2df3
--- /dev/null
+++ b/dev-libs/fftw/files/digest-fftw-2.1.3
@@ -0,0 +1 @@
+MD5 c6c51a4243f0f998ae4c9416108ebba0 fftw-2.1.3.tar.gz 1139406