--- /dev/null
+diff -U 3 -dHrN Normaliz3.0.orig/source/Makefile Normaliz3.0/source/Makefile
+--- Normaliz3.0.orig/source/Makefile 2015-09-29 14:05:44.960631514 +0200
++++ Normaliz3.0/source/Makefile 2015-09-29 14:06:06.510346764 +0200
+@@ -19,16 +19,16 @@
+ @$(MAKE) normaliz
+
+ normaliz.o: $(SOURCES) $(HEADERS) $(LIBHEADERS)
+- $(CXX) $(CXXFLAGS) $(NORMFLAGS) -c Normaliz.cpp -o normaliz.o
++ $(CXX) $(CXXFLAGS) $(LDFLAGS) -c Normaliz.cpp -o normaliz.o
+
+ normaliz: $(SOURCES) $(HEADERS) normaliz.o libnormaliz/libnormaliz.a
+- $(CXX) $(CXXFLAGS) $(NORMFLAGS) normaliz.o libnormaliz/libnormaliz.a $(LINKFLAGS) -o normaliz
++ $(CXX) $(CXXFLAGS) $(LDFLAGS) normaliz.o libnormaliz/libnormaliz.a $(LINKFLAGS) -o normaliz
+
+ normaliz1: $(SOURCES) $(HEADERS) $(LIBHEADERS) $(LIBSOURCES)
+- $(CXX) $(CXXFLAGS) $(NORMFLAGS) Normaliz-impl.cpp $(LINKFLAGS) -o normaliz1
++ $(CXX) $(CXXFLAGS) $(LDFLAGS) Normaliz-impl.cpp $(LINKFLAGS) -o normaliz1
+
+ normaliz-pg: $(SOURCES) $(HEADERS) $(LIBHEADERS) $(LIBSOURCES)
+- $(CXX) $(CXXFLAGS) $(NORMFLAGS) -pg Normaliz-impl.cpp $(LINKFLAGS) -o normaliz-pg
++ $(CXX) $(CXXFLAGS) $(LDFLAGS) -pg Normaliz-impl.cpp $(LINKFLAGS) -o normaliz-pg
+
+
+ #always go down the directory and let the make there check what has to be done
+diff -U 3 -dHrN Normaliz3.0.orig/source/Makefile.configuration Normaliz3.0/source/Makefile.configuration
+--- Normaliz3.0.orig/source/Makefile.configuration 2015-09-29 14:05:44.960631514 +0200
++++ Normaliz3.0/source/Makefile.configuration 2015-09-29 14:07:16.419426513 +0200
+@@ -1,11 +1,9 @@
+ ##
+ ## Makefile configuration for normaliz
+ ##
+-CXX = g++
+ #CXX = linux32 g++ -m32 -march=i686 #compile it for linux32
+ CXXFLAGS += -std=c++0x
+ CXXFLAGS += -Wall -pedantic
+-CXXFLAGS += -O3 -funroll-loops
+ #CXXFLAGS += -I /usr/local/boost_1_45_0
+ #CXXFLAGS += -g ## debugging
+ #CXXFLAGS += -pg ## profiling
+@@ -21,7 +19,6 @@
+ endif
+
+ ## for distributing the executables link static (does not work for mac)
+-CXXFLAGS += -static
+ ## for almost static compilation on Mac use
+ #CXXFLAGS += -static-libgcc
+ ## make it compatible with older Mac versions
--- /dev/null
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+inherit eutils toolchain-funcs versionator
+
+MYPV=$(get_version_component_range 1-2)
+MYP="Normaliz${MYPV}"
+
+DESCRIPTION="Tool for computations in affine monoids and more"
+HOMEPAGE="http://www.mathematik.uni-osnabrueck.de/normaliz/"
+SRC_URI="http://www.mathematik.uni-osnabrueck.de/${PN}/${MYP}/Normaliz${PV}.zip"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="doc extras openmp"
+
+RDEPEND="dev-libs/gmp[cxx]"
+DEPEND="${RDEPEND}
+ app-arch/unzip
+ dev-libs/boost"
+# Only a boost header is needed -> not RDEPEND
+
+S=${WORKDIR}/${MYP}
+
+src_prepare () {
+ epatch "${FILESDIR}/${P}-respect-flags.patch"
+ epatch "${FILESDIR}/${PN}-2.12.2-gcc49.patch"
+
+ # Respect users AR tool (Bug 474532)
+ sed -e "s:ar -cr:$(tc-getAR) -cr:" -i source/libnormaliz/Makefile || die
+
+ if use openmp && tc-has-openmp; then
+ export OPENMP=yes
+ else
+ export OPENMP=no
+ fi
+}
+
+src_compile(){
+ emake CXX="$(tc-getCXX)" OPENMP="${OPENMP}" -C source
+}
+
+src_install() {
+ dobin source/normaliz
+ if use doc ; then
+ dodoc doc/"Normaliz.pdf"
+ dodoc doc/"NmzIntegrate.pdf"
+ fi
+ if use extras; then
+ elog "You have selected to install extras which consist of Macaulay2"
+ elog "and Singular packages. These have been installed into "
+ elog "/usr/share/${PN}, and cannot be used without additional setup. Please refer"
+ elog "to the homepages of the respective projects for additional information."
+ elog "Note however, Gentoo's versions of Singular and Macaulay2 bring their own"
+ elog "copies of these interface packages. Usually you don't need normaliz's versions."
+ insinto "/usr/share/${PN}"
+ doins Singular/normaliz.lib
+ doins Macaulay2/Normaliz.m2
+ fi
+}