FROM alpine AS tools-build

MAINTAINER Hugo Sales <hugo@hsal.es>

RUN apk add gcc g++ libc-dev build-base gmp-dev mpfr-dev mpc1-dev flex-dev linux-headers gettext-dev

COPY gcc /mnt/gcc

WORKDIR /mnt/gcc

#RUN ln -s /usr/include/libexecinfo/execinfo.h /usr/include/execinfo.h

RUN --mount=type=cache,target=/mnt/gcc/host-x86_64-pc-linux-musl CFLAGS="-O3 -march=native -freport-bug" CXXFLAGS="-O3 -march=native -freport-bug" ./configure --disable-bootstrap --disable-multilib --prefix=/tmp/gcc-root --enable-vtable-verify

RUN make -j32

RUN make DESTDIR=/tmp/gcc-root install

FROM alpine as build

COPY --from=tools-build /tmp/gcc-root /mnt/gcc

ENTRYPOINT ["sh"]