--- /dev/null
+diff --git a/Make.inc b/Make.inc
+index da01e38..c751607 100644
+--- a/Make.inc
++++ b/Make.inc
+@@ -297,7 +297,7 @@ JCFLAGS = -std=gnu99 -pipe $(fPIC) -fno-strict-aliasing -D_FILE_OFFSET_BITS=64
+ JCPPFLAGS =
+ JCXXFLAGS = -pipe $(fPIC) -fno-rtti
+ DEBUGFLAGS = -O0 -ggdb3 -DJL_DEBUG_BUILD -fstack-protector-all
+-SHIPFLAGS = -O3 -ggdb3 -falign-functions
++SHIPFLAGS = GENTOOCFLAGS
+ endif
+
+ ifeq ($(USECLANG),1)
+@@ -307,7 +307,7 @@ JCFLAGS = -pipe $(fPIC) -fno-strict-aliasing -D_FILE_OFFSET_BITS=64
+ JCPPFLAGS =
+ JCXXFLAGS = -pipe $(fPIC) -fno-rtti
+ DEBUGFLAGS = -O0 -g -DJL_DEBUG_BUILD -fstack-protector-all
+-SHIPFLAGS = -O3 -g
++SHIPFLAGS = GENTOOCFLAGS
+ ifeq ($(OS), Darwin)
+ ifeq ($(USE_LIBCPP), 1)
+ CC += -stdlib=libc++ -mmacosx-version-min=10.7
+@@ -334,7 +334,7 @@ JCFLAGS = -std=gnu11 -pipe $(fPIC) -fno-strict-aliasing -D_FILE_OFFSET_BITS=64 -
+ JCPPFLAGS =
+ JCXXFLAGS = -pipe $(fPIC) -fno-rtti
+ DEBUGFLAGS = -O0 -g -DJL_DEBUG_BUILD -fstack-protector-all
+-SHIPFLAGS = -O3 -g -falign-functions
++SHIPFLAGS = GENTOOCFLAGS
+ endif
+
+ ifeq ($(USECCACHE), 1)
+diff --git a/deps/Makefile b/deps/Makefile
+index 051b23d..881ba68 100644
+--- a/deps/Makefile
++++ b/deps/Makefile
+@@ -862,7 +862,7 @@ OPENSPECFUN_TAR_URL = https://api.github.com/repos/JuliaLang/openspecfun/tarball
+ $(eval $(call git-external,openspecfun,OPENSPECFUN,Makefile,libopenspecfun.$(SHLIB_EXT)))
+
+ # issue 8799
+-OPENSPECFUN_CFLAGS = -O3 -std=c99
++OPENSPECFUN_CFLAGS = GENTOOCFLAGS -std=c99
+ ifeq ($(USEICC),1)
+ OPENSPECFUN_CFLAGS += -fp-model precise
+ endif
+@@ -902,7 +902,7 @@ DSFMT_OBJ_SOURCE = dsfmt-$(DSFMT_VER)/libdSFMT.$(SHLIB_EXT)
+
+ DSFMT_CFLAGS = $(CFLAGS) -DNDEBUG -DDSFMT_MEXP=19937 $(fPIC) -DDSFMT_DO_NOT_USE_OLD_NAMES
+ ifneq ($(USEMSVC), 1)
+-DSFMT_CFLAGS += -O3 -finline-functions -fomit-frame-pointer -fno-strict-aliasing \
++DSFMT_CFLAGS += GENTOOCFLAGS -finline-functions -fno-strict-aliasing \
+ --param max-inline-insns-single=1800 -Wmissing-prototypes -Wall -std=c99 -shared
+ else
+ DSFMT_CFLAGS += -Wl,-dll,-def:../libdSFMT.def
+@@ -1181,7 +1181,7 @@ endif
+ endif
+
+ libgfortblas.$(SHLIB_EXT): gfortblas.c gfortblas.alias
+- $(CC) -Wall -O3 $(CPPFLAGS) $(CFLAGS) $(fPIC) -shared $< -o $@ -pipe \
++ $(CC) -Wall GENTOOCFLAGS $(CPPFLAGS) $(CFLAGS) $(fPIC) -shared $< -o $@ -pipe \
+ -Wl,-reexport_framework,Accelerate -Wl,-alias_list,gfortblas.alias
+ $(build_shlibdir)/libgfortblas.$(SHLIB_EXT): libgfortblas.$(SHLIB_EXT)
+ cp -f $< $@
+@@ -1607,10 +1607,10 @@ install-suitesparse: $(SUITESPARSE_OBJ_TARGET) install-suitesparse-wrapper
+ # SUITESPARSE WRAPPER
+
+ ifeq ($(USE_SYSTEM_SUITESPARSE), 1)
+-SUITESPARSE_INC = -I /usr/include/suitesparse
++
+ SUITESPARSE_LIB = -lumfpack -lcholmod -lamd -lcamd -lcolamd -lspqr
+ else
+-SUITESPARSE_INC = -I SuiteSparse-$(SUITESPARSE_VER)/CHOLMOD/Include -I SuiteSparse-$(SUITESPARSE_VER)/SuiteSparse_config -I SuiteSparse-$(SUITESPARSE_VER)/SPQR/Include
++
+ SUITESPARSE_LIB = -L$(build_shlibdir) -lcholmod -lumfpack -lspqr $(RPATH_ORIGIN)
+ $(build_shlibdir)/libsuitesparse_wrapper.$(SHLIB_EXT): $(SUITESPARSE_OBJ_TARGET)
+ endif
+diff --git a/deps/checksums/Rmath-julia-0.1.tar.gz/sha512 b/deps/checksums/Rmath-julia-0.1.tar.gz/sha512
+index 6a64d44..6bbeb34 100644
+--- a/deps/checksums/Rmath-julia-0.1.tar.gz/sha512
++++ b/deps/checksums/Rmath-julia-0.1.tar.gz/sha512
+@@ -1 +1 @@
+-1dd94eca05bc06c3f33e8be5087d3b1742d01c8b38588e0fa79b8f6b9998760bca21bee1b65873825c4dde2d994a8271166bc21f670a34810fa9db598473a887
++15da0b3ff16113d5ad44c7ec42a1c8e260973883dd85ee174b3526f01137a94136cb03d4bbecb9267b7ca20d5ffc10670496d589cf60b86930f869a9fe219794
+diff --git a/doc/Makefile b/doc/Makefile
+index 08ba8dd..078d725 100644
+--- a/doc/Makefile
++++ b/doc/Makefile
+@@ -56,7 +56,7 @@ help:
+ @echo " doctest to run all doctests embedded in the documentation (if enabled)"
+
+ clean:
+- -rm -rf _build/*
++ @echo "Do not clean doc/_build/html. Just use it..."
+
+ cleanall: clean
+
+diff --git a/src/Makefile b/src/Makefile
+index 98fa704..b566791 100644
+--- a/src/Makefile
++++ b/src/Makefile
+@@ -26,15 +26,8 @@ endif
+
+ # In LLVM < 3.4, --ldflags includes both options and libraries, so use it both before and after --libs
+ # In LLVM >= 3.4, --ldflags has only options, and --system-libs has the libraries.
+-LLVMLINK = $(call exec,$(LLVM_CONFIG) --ldflags) $(call exec,$(LLVM_CONFIG) --libs) $(call exec,$(LLVM_CONFIG) --ldflags) $(call exec,$(LLVM_CONFIG) --system-libs 2> /dev/null)
+-ifeq ($(USE_LLVM_SHLIB),1)
+-ifeq ($(LLVM_USE_CMAKE),1)
+-LLVMLINK = $(call exec,$(LLVM_CONFIG) --ldflags) -lLLVM
+-else
+-LLVMLINK = $(call exec,$(LLVM_CONFIG) --ldflags) -lLLVM-$(call exec,$(LLVM_CONFIG) --version)
+-endif
++LLVMLINK = $(call exec,$(LLVM_CONFIG) --ldflags) $(call exec,$(LLVM_CONFIG) --libs) $(call exec,$(LLVM_CONFIG) --ldflags) $(call exec,$(LLVM_CONFIG) --system-libs)
+ FLAGS += -DLLVM_SHLIB
+-endif
+
+ COMMON_LIBS = -L$(build_shlibdir) -L$(build_libdir) $(LIBUV) $(LIBUTF8PROC) $(NO_WHOLE_ARCHIVE) $(LLVMLINK) $(OSLIBS)
+ DEBUG_LIBS = $(WHOLE_ARCHIVE) $(BUILDDIR)/flisp/libflisp-debug.a $(WHOLE_ARCHIVE) $(BUILDDIR)/support/libsupport-debug.a $(COMMON_LIBS)
+diff --git a/ui/Makefile b/ui/Makefile
+index c9b5d0e..557a38c 100644
+--- a/ui/Makefile
++++ b/ui/Makefile
+@@ -20,15 +20,10 @@ OBJS = $(SRCS:%=%.o)
+ DOBJS = $(SRCS:%=%.dbg.obj)
+ DEBUGFLAGS += $(FLAGS)
+ SHIPFLAGS += $(FLAGS)
+-ifeq ($(USE_LLVM_SHLIB),1)
+-ifeq ($(LLVM_USE_CMAKE),1)
+-LLVMLINK = $(call exec,$(LLVM_CONFIG) --ldflags) -lLLVM
+-else
+-LLVMLINK = $(call exec,$(LLVM_CONFIG) --ldflags) -lLLVM-$(call exec,$(LLVM_CONFIG) --version)
+-endif
+-else
+-LLVMLINK =
+-endif
++
++LLVMLINK = $(call exec,$(LLVM_CONFIG) --ldflags) $(call exec,$(LLVM_CONFIG) --libs) $(call exec,$(LLVM_CONFIG) --ldflags) $(call exec,$(LLVM_CONFIG) --system-libs)
++FLAGS += -DLLVM_SHLIB
++
+ JLDFLAGS += $(LDFLAGS) $(NO_WHOLE_ARCHIVE) $(OSLIBS) $(LLVMLINK) $(RPATH)
+
+ ifeq ($(USE_SYSTEM_LIBM),0)
--- /dev/null
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+RESTRICT="test"
+
+inherit elisp-common eutils multilib pax-utils toolchain-funcs
+
+DESCRIPTION="High-performance programming language for technical computing"
+HOMEPAGE="http://julialang.org/"
+SRC_URI="
+ https://github.com/JuliaLang/${PN}/releases/download/v${PV}/${P}.tar.gz
+ https://dev.gentoo.org/~tamiko/${P}-bundled.tar.gz
+"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="emacs"
+
+RDEPEND="
+ dev-lang/R:0=
+ dev-libs/double-conversion:0=
+ dev-libs/gmp:0=
+ dev-libs/libgit2:0=
+ dev-libs/mpfr:0=
+ dev-libs/openspecfun
+ sci-libs/arpack:0=
+ sci-libs/camd:0=
+ sci-libs/cholmod:0=
+ sci-libs/fftw:3.0=
+ sci-libs/openlibm:0=
+ sci-libs/spqr:0=
+ sci-libs/umfpack:0=
+ sci-mathematics/glpk:0=
+ >=sys-devel/llvm-3.5:0=
+ >=sys-libs/libunwind-1.1:7=
+ sys-libs/readline:0=
+ sys-libs/zlib:0=
+ virtual/blas
+ virtual/lapack
+ emacs? ( app-emacs/ess )"
+
+DEPEND="${RDEPEND}
+ dev-util/patchelf
+ virtual/pkgconfig"
+
+PATCHES=(
+ "${FILESDIR}"/${P}-fix_build_system.patch
+)
+
+src_prepare() {
+ mv "${WORKDIR}"/bundled/dsfmt-2.2.3.tar.gz deps/ || die
+ mv "${WORKDIR}"/bundled/libuv-efb40768b7c7bd9f173a7868f74b92b1c5a61a0e.tar.gz deps/ || die
+ mv "${WORKDIR}"/bundled/pcre2-10.20.tar.bz2 deps/ || die
+ mv "${WORKDIR}"/bundled/Rmath-julia-0.1.tar.gz deps/ || die
+ mv "${WORKDIR}"/bundled/utf8proc-85789180158ac7fff85b9f008828d6ac44f072ea.tar.gz deps/ || die
+ rmdir "${WORKDIR}"/bundled || die
+
+ epatch "${PATCHES[@]}"
+
+ # Sledgehammer:
+ # - prevent fetching of bundled stuff in compile and install phase
+ # - respect CFLAGS
+ # - respect EPREFIX and Gentoo specific paths
+ # - fix BLAS and LAPACK link interface
+
+ sed -i \
+ -e 's|$(JLDOWNLOAD)|${EPREFIX}/bin/true|' \
+ -e 's|git submodule|${EPREFIX}/bin/true|g' \
+ -e "s|GENTOOCFLAGS|${CFLAGS}|g" \
+ -e "s|/usr/include|${EPREFIX%/}/usr/include|g" \
+ deps/Makefile || die
+
+ local lblas="$($(tc-getPKG_CONFIG) --libs blas)"
+ lblas=${lblas%% *}
+ local llapack="$($(tc-getPKG_CONFIG) --libs lapack)"
+ llapack=${llapack%% *}
+
+ sed -i \
+ -e "s|\(JULIA_EXECUTABLE = \)\(\$(JULIAHOME)/julia\)|\1 LD_LIBRARY_PATH=\$(BUILD)/$(get_libdir) \2|" \
+ -e "s|GENTOOCFLAGS|${CFLAGS}|g" \
+ -e "s|LIBDIR = lib|LIBDIR = $(get_libdir)|" \
+ -e "s|/usr/lib|${EPREFIX}/usr/$(get_libdir)|" \
+ -e "s|/usr/include|${EPREFIX}/usr/include|" \
+ -e "s|\$(BUILD)/lib|\$(BUILD)/$(get_libdir)|" \
+ -e "s|^JULIA_COMMIT = .*|JULIA_COMMIT = v${PV}|" \
+ -e "s|-lblas|${lblas}|" \
+ -e "s|= libblas|= lib${lblas#-l}|" \
+ -e "s|-llapack|${llapack}|" \
+ -e "s|= liblapack|= lib${llapack#-l}|" \
+ Make.inc || die
+
+ sed -i \
+ -e "s|,lib)|,$(get_libdir))|g" \
+ -e "s|\$(BUILD)/lib|\$(BUILD)/$(get_libdir)|g" \
+ Makefile || die
+
+ sed -i \
+ -e "s|ar -rcs|$(tc-getAR) -rcs|g" \
+ src/Makefile || die
+}
+
+src_configure() {
+ # julia does not play well with the system versions of
+ # dsfmt, libuv, pcre2 and utf8proc
+ cat <<-EOF > Make.user
+ USE_SYSTEM_DSFMT=0
+ USE_SYSTEM_LIBUV=0
+ USE_SYSTEM_PCRE=0
+ USE_SYSTEM_RMATH=0
+ USE_SYSTEM_UTF8PROC=0
+ USE_LLVM_SHLIB=1
+ USE_SYSTEM_ARPACK=1
+ USE_SYSTEM_BLAS=1
+ USE_SYSTEM_FFTW=1
+ USE_SYSTEM_GMP=1
+ USE_SYSTEM_GRISU=1
+ USE_SYSTEM_LAPACK=1
+ USE_SYSTEM_LIBGIT2=1
+ USE_SYSTEM_LIBM=1
+ USE_SYSTEM_LIBUNWIND=1
+ USE_SYSTEM_LLVM=1
+ USE_SYSTEM_MPFR=1
+ USE_SYSTEM_OPENLIBM=1
+ USE_SYSTEM_OPENSPECFUN=1
+ USE_SYSTEM_PATCHELF=1
+ USE_SYSTEM_READLINE=1
+ USE_SYSTEM_SUITESPARSE=1
+ USE_SYSTEM_ZLIB=1
+ VERBOSE=1
+ EOF
+
+}
+
+src_compile() {
+ emake cleanall
+ emake julia-release \
+ prefix="/usr" DESTDIR="${D}" CC="$(tc-getCC)" CXX="$(tc-getCXX)"
+ pax-mark m $(file usr/bin/julia-* | awk -F : '/ELF/ {print $1}')
+ emake
+ use emacs && elisp-compile contrib/julia-mode.el
+}
+
+src_test() {
+ emake test
+}
+
+src_install() {
+ emake install \
+ prefix="/usr" DESTDIR="${D}" CC="$(tc-getCC)" CXX="$(tc-getCXX)"
+ cat > 99julia <<-EOF
+ LDPATH=${EROOT%/}/usr/$(get_libdir)/julia
+ EOF
+ doenvd 99julia
+
+ if use emacs; then
+ elisp-install "${PN}" contrib/julia-mode.el
+ elisp-site-file-install "${FILESDIR}"/63julia-gentoo.el
+ fi
+ dodoc README.md
+
+ mv "${ED}"/usr/etc/julia "${ED}"/etc || die
+ rmdir "${ED}"/usr/etc || die
+ rmdir "${ED}"/usr/libexec || die
+ mv "${ED}"/usr/share/doc/julia/{examples,html} \
+ "${ED}"/usr/share/doc/${P} || die
+ rmdir "${ED}"/usr/share/doc/julia || die
+ if [[ $(get_libdir) != lib ]]; then
+ mkdir -p "${ED}"/usr/$(get_libdir) || die
+ mv "${ED}"/usr/lib/julia "${ED}"/usr/$(get_libdir)/julia || die
+ fi
+}
+
+pkg_postinst() {
+ use emacs && elisp-site-regen
+}
+
+pkg_postrm() {
+ use emacs && elisp-site-regen
+}