diff --git a/sys-cluster/spectral/Manifest b/sys-cluster/spectral/Manifest
new file mode 100644
index 0000000000..17c53bcd8b
--- /dev/null
+++ b/sys-cluster/spectral/Manifest
@@ -0,0 +1 @@
+DIST spectral-3.4.1-src.tar.bz2 318900 BLAKE2B 3a34f6ac66cd3ed7b7593df5b09151e041281c12c2ac17dba6ee17f82c75e64ca8f23dfc1e5ceba432f65abe4796fdbf40bd4ba4c069de3ca8fa1fd9215b8428 SHA512 5b6350cbc6800857d1eeec7b6061406e3d238c12078f90a1ab611f89865f4bf07ef01dd638d9f258e64dfeded3963bdb48fba142599c29b57ffbcb7a86ac72f4
diff --git a/sys-cluster/spectral/metadata.xml b/sys-cluster/spectral/metadata.xml
new file mode 100644
index 0000000000..34b915c53f
--- /dev/null
+++ b/sys-cluster/spectral/metadata.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>lssndrbarbieri@gmail.com</email>
+		<name>Alessandro Barbieri</name>
+	</maintainer>
+	<use>
+		<flag name="extrae">Add <pkg>sys-cluster/extrae</pkg> support</flag>
+		<flag name="libbsctools">Add <pkg>sys-cluster/libbsctools</pkg> support</flag>
+	</use>
+	<upstream>
+		<bugs-to>https://github.com/bsc-performance-tools/spectral/issues</bugs-to>
+		<remote-id type="github">bsc-performance-tools/spectral</remote-id>
+	</upstream>
+</pkgmetadata>
diff --git a/sys-cluster/spectral/spectral-3.4.1.ebuild b/sys-cluster/spectral/spectral-3.4.1.ebuild
new file mode 100644
index 0000000000..0f15f65f40
--- /dev/null
+++ b/sys-cluster/spectral/spectral-3.4.1.ebuild
@@ -0,0 +1,55 @@
+# Copyright 2019-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit flag-o-matic
+
+DESCRIPTION="Signal processing techniques to select representative regions from Paraver traces"
+HOMEPAGE="https://github.com/bsc-performance-tools/spectral"
+SRC_URI="https://ftp.tools.bsc.es/spectral/spectral-${PV}-src.tar.bz2"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="extrae libbsctools openmp"
+
+RDEPEND="
+	sci-libs/fftw:3.0
+	extrae? ( sys-cluster/extrae )
+	libbsctools? ( sys-cluster/libbsctools )
+"
+DEPEND="${RDEPEND}"
+
+#PATCHES=( "${FILESDIR}/respect-flags.patch" )
+
+src_configure() {
+	#https://github.com/bsc-performance-tools/spectral/issues/1
+	append-cflags -fcommon
+	append-cxxflags -fcommon
+
+	local myconf=(
+		--disable-static
+		--enable-shared
+		--with-fft="${EPREFIX}/usr"
+		--with-pic
+
+		$(use_enable openmp)
+	)
+
+	if use extrae; then
+		myconf+=( "--with-extrae=${EPREFIX}/usr" )
+	else
+		myconf+=( "--without-extrae" )
+	fi
+	if use libbsctools; then
+		myconf+=( "--with-libbsctools=${EPREFIX}/usr" )
+	fi
+
+	econf "${myconf[@]}" || die
+}
+
+src_install() {
+	default
+	dodoc ChangeLog README AUTHORS NEWS
+}