#
# GCC Common Support.
#
# This configuration file configure's, make's and install's gcc. It uses
# newlib, MPFR, MPC, and GMP in a one-tree build configuration.
#

%include %{_configdir}/checks.cfg

%ifn %{defined gcc_version_message}
%error No GCC Version message defined.
%endif

#
# The package description.
#
Name:      %{_target}-gcc-%{gcc_version}-newlib-%{newlib_version}-%{_host}-%{release}
Summary:   GCC v%{gcc_version} and Newlib v%{newlib_version} for target %{_target} on host %{_host}
Version:   %{gcc_version}
Release:   %{release}
URL: 	   http://gcc.gnu.org/

#
# Supports Candian Cross (Cxc).
#
%define allow_cxc

#
# The GCC library directory
#
%global _gcclibdir %{_prefix}/lib

#
# Default LTO to off.
#
%ifn %{defined with_lto}
 %define with_lto 0
%endif

#
# The GCC version depends on the type of build we are doing.
#
%if %{rsb_released}
 %define rtems_gcc_version %{rsb_version}
%else
 %define rtems_gcc_version %{rtems_version}
%endif

#
# Packages GCC requires
#
%if %{defined cloog_version}
%source set cloog https://gcc.gnu.org/pub/gcc/infrastructure/cloog-%{cloog_version}.tar.gz
%endif
%if %{defined isl_version}
%source set isl https://gcc.gnu.org/pub/gcc/infrastructure/isl-%{isl_version}.tar.bz2
%endif

#
# Prepare the source code.
#
%prep
  # save the build top directory and cd back to it rather than
  # using 'cd ..' because some shells change $PWD to a symlink's
  # target location and 'cd ..' fails.
  build_top=$(pwd)

  gcc_source=%{?gcc_external:%{gcc_expand_name}}%{!?gcc_external:"gcc-%{gcc_version}"}

  # gcc and optional the g++ core if separate packages
  source_dir_gcc=${gcc_source}
  %source setup gcc -q -n ${gcc_source}

  %patch setup gcc -p1
  cd ${build_top}

  # newlib
  source_dir_newlib=%{?newlib_external:%{newlib_expand_name}}%{!?newlib_external:"newlib-%{newlib_version}"}
  %source setup newlib -q -D -n ${source_dir_newlib}
  %patch setup newlib -p1
  cd ${build_top}

  # Link newlib into the gcc source tree
  %{__rmfile} ${source_dir_gcc}/newlib
  %{__ln_s} $PWD/${source_dir_newlib}/newlib ${source_dir_gcc}/newlib

%if %{defined cloog_version}
  # CLooG
  source_dir_cloog="cloog-%{cloog_version}"
  %source setup cloog -q -D -n cloog-%{cloog_version}
  %patch setup cloog -p1
  cd ${build_top}
  # Build MPFR one-tree style
  %{__rmfile} ${source_dir_gcc}/cloog
  %{__ln_s} $PWD/${source_dir_cloog} ${source_dir_gcc}/cloog
%endif

%if %{defined isl_version}
  # ISL
  source_dir_isl="isl-%{isl_version}"
  %source setup isl -q -D -n isl-%{isl_version}
  %patch setup isl -p1
  cd ${build_top}
  # Build MPFR one-tree style
  %{__rmfile} ${source_dir_gcc}/isl
  %{__ln_s} $PWD/${source_dir_isl} ${source_dir_gcc}/isl
%endif

  # MPFR
  source_dir_mpfr="mpfr-%{mpfr_version}"
  %source setup mpfr -q -D -n mpfr-%{mpfr_version}
  %patch setup mpfr -p1
  cd ${build_top}
  # Build MPFR one-tree style
  %{__rmfile} ${source_dir_gcc}/mpfr
  %{__ln_s} $PWD/${source_dir_mpfr} ${source_dir_gcc}/mpfr

  # MPC
  source_dir_mpc="mpc-%{mpc_version}"
  %source setup mpc -q -D -n mpc-%{mpc_version}
  %patch setup mpc -p1
  cd ${build_top}
  # Build MPC one-tree style
  %{__rmfile} ${source_dir_gcc}/mpc
  %{__ln_s} $PWD/${source_dir_mpc} ${source_dir_gcc}/mpc

  # GMP
  source_dir_gmp="gmp-%{gmp_version}"
  %source setup gmp -q -D -n gmp-%{gmp_version}
  %patch setup gmp -p1
  cd ${build_top}
  # Build GMP one-tree style
  %{__rmfile} ${source_dir_gcc}/gmp
  %{__ln_s} $PWD/${source_dir_gmp} ${source_dir_gcc}/gmp

  echo "%{gcc_version_message}" > ${source_dir_gcc}/gcc/DEV-PHASE

  # Fix timestamps
  cd ${source_dir_gcc}
  contrib/gcc_update --touch
  cd ${build_top}

%build
  build_top=$(pwd)

  %{build_directory}

  mkdir -p ${build_dir}
  cd ${build_dir}

  # Languages.
  languages="c"
%if %{enable_cxx}
  languages="$languages,c++"
%endif
%if %{enable_ada}
  languages="$languages,ada"
%endif
%if %{enable_go}
  languages="$languages,go"
%endif
%if %{enable_fortran}
  languages="$languages,fortran"
%endif
%if %{enable_java}
  languages="$languages,java"
%endif
%if %{enable_objc}
  languages="$languages,objc"
%endif

  %{host_build_flags}

  ../${source_dir_gcc}/configure \
    --prefix=%{_prefix} \
    --bindir=%{_bindir} \
    --exec_prefix=%{_exec_prefix} \
    --includedir=%{_includedir} \
    --libdir=%{_gcclibdir} \
    --libexecdir=%{_libexecdir} \
    --mandir=%{_mandir} \
    --infodir=%{_infodir} \
    --datadir=%{_datadir} \
    --build=%{_build} --host=%{_host} \
    --target=%{_target} \
    --disable-libstdcxx-pch \
    --with-gnu-as --with-gnu-ld --verbose \
    --with-newlib \
    --disable-nls --without-included-gettext \
    --disable-win32-registry \
    --enable-version-specific-runtime-libs \
    %{?with_lto:--enable-lto}%{!?with_lto:--disable-lto} \
    --enable-newlib-io-c99-formats \
    %{?disable_MAKEINFO:MAKEINFO=missing} \
    %{?with_iconv:--enable-newlib-iconv} \
    %{?with_iconv:--enable-newlib-iconv-encodings=%{_newlib_iconv_encodings}} \
    %{?with_threads:--enable-threads}%{!?with_threads:--disable-threads} \
    %{?with_plugin:--enable-plugin}%{!?with_plugin:--disable-plugin} \
    %{?enable_obsolete:--enable-obsolete} \
    %{?with_libgomp:--enable-libgomp} \
    %{?gcc_configure_extra_options:%{gcc_configure_extra_options}} \
    --enable-languages="$languages"

  if test "%_host" != "%_build" ; then
    # Bug in gcc-3.2.1:
    # Somehow, gcc doesn't get syslimits.h right for Cdn-Xs
    mkdir -p gcc/include
    cp ../${source_dir_gcc}/gcc/gsyslimits.h gcc/include/syslimits.h
  fi

  %{__make} %{?_smp_mflags} all

  cd ${build_top}

%install
  build_top=$(pwd)

  %{__rmdir} $SB_BUILD_ROOT

  cd ${build_dir}
  %{__make} DESTDIR=$SB_BUILD_ROOT install
  cd ${build_top}

  # libiberty doesn't honor --libdir, but always installs to a
  # magically guessed _libdir
  %{__rmfile} ${SB_BUILD_ROOT}%{_libdir}/libiberty.a

  # We use the version from binutils
  %{__rmfile} $SB_BUILD_ROOT%{_bindir}/%{_target}-c++filt%{_exeext}

  # We don't ship info/dir
  %{__rmfile} $SB_BUILD_ROOT%{_infodir}/dir

  # Don't want libffi's man-pages
  %{__rmfile} $SB_BUILD_ROOT%{_mandir}/man3/*ffi*

  # Clean the symlinks away incase the source is a repo
  # Note, delete as a directory because of MSYS2 support on Windows.
  %{__rmdir} ${source_dir_gcc}/newlib
  %{__rmdir} ${source_dir_gcc}/mpfr
  %{__rmdir} ${source_dir_gcc}/mpc
  %{__rmdir} ${source_dir_gcc}/gmp

%testing
  # Add testing here.
  export RUNTESTFLAGS=--target_board=%{_target}-run