###############################################################################
# IPFire.org    - An Open Source Firewall Solution                            #
# Copyright (C) - IPFire Development Team <info@ipfire.org>                   #
###############################################################################

# Configure build to compile with cloog and ppl.
build_cloog_ppl = 1

name       = gcc
version    = 4.6.3
release    = 6

maintainer = Michael Tremer <michael.tremer@ipfire.org>
groups     = Development/Compilers
url        = http://gcc.gnu.org/
license    = GPLv3+ and GPLv2+ with exceptions
summary    = Various compilers (C, C++, Objective-C, Java, ...).

description
	The gcc package contains the GNU Compiler Collection. \
	You'll need this package in order to compile C code.
end

# This is the at least required version of binutils.
required_binutils_version = 2.21.51.0.8-1

source_dl  = http://ftp.gnu.org/gnu/gcc/%{thisapp}/
sources    = %{thisapp}.tar.gz

patches = \
	gcc46-hack.patch0 \
	gcc46-c++-builtin-redecl.patch0 \
	gcc46-pr33763.patch0 \
	gcc46-libgomp-omp_h-multilib.patch0 \
	gcc46-libtool-no-rpath.patch0 \
	gcc46-cloog-dl.patch0 \
	gcc46-pr38757.patch0 \
	gcc46-no-add-needed.patch0 \
	gcc46-unwind-debughook-sdt.patch0 \
	gcc46-ppl-0.10.patch \
	gcc46-Woverlength-string.patch0 \
	gcc46-Woverlength-string-asm.patch0 \
	gcc-4.6.3-piepatches-20120408.patch

build
	requires
		autogen
		binutils>=%{required_binutils_version}
		dejagnu
		elfutils-devel
		expect
		filesystem >= 002
		flex
		glibc-devel
		gmp-devel
		libffi-devel
		libmpc-devel
		mpfr-devel
		texinfo
		zlib-devel
	end

	# If cloog support is enabled, we require the devel packages for build.
	if "%{build_cloog_ppl}" == "1"
		requires += cloog-ppl-devel
		requires += ppl-devel
	end

	# Build libquadmath (only on x86).
	build_libquadmath = 0

	# A couple of configure arguments depending on the architecture and
	# configuration.
	configure_options =

	make_bootstrap = profiledbootstrap

	if "%{DISTRO_ARCH}" == "x86_64"
		configure_options = --disable-multilib

		build_libquadmath = 1
	end

	if "%{DISTRO_ARCH}" == "i686"
		configure_options = --with-arch=%{DISTRO_ARCH} --with-tune=generic

		build_libquadmath = 1
	end

	if "%{DISTRO_ARCH}" == "armv5tel"
		make_bootstrap = bootstrap

		configure_options += --disable-sjlj-exceptions
		configure_options += --with-float=soft
	end

	if "%{DISTRO_ARCH}" == "armv7hl"
		make_bootstrap = bootstrap

		configure_options += --disable-sjlj-exceptions

		configure_options += \
			--with-cpu=cortex-a8 \
			--with-tune=cortex-a8 \
			--with-arch=armv7-a \
			--with-float=hard \
			--with-fpu=vfpv3-d16 \
			--with-abi=aapcs-linux
	end

	if "%{build_cloog_ppl}" == "1"
		configure_options += --with-cloog --with-ppl
	end

	# CFLAGS for hardening.
	HARD_CFLAGS = -DEFAULT_PIE -DEFAULT_SSP -DEFAULT_PIE_SSP -DEFAULT_ESP_SPP \
		-DENABLE_ESP_SSP -DEFAULT_RELRO -DEFAULT_BIND_NOW

	prepare_cmds
		mkdir -v %{DIR_SRC}/gcc-build

		# Remove unneeded features that will save some compile time
		rm -rf lib{gfortran,java,objc} gcc/{fortran,java,objc,objcp}

		# Apply a sed substitution that will suppress the installation of
		# libiberty.a. The version of libiberty.a provided by Binutils will be used
		# instead:
		sed -i 's/install_to_$(INSTALL_DEST) //' libiberty/Makefile.in

		# Branding gcc
		echo "%{DISTRO_NAME} %{version}-%{release}" > gcc/DEV-PHASE

		# Libgomp uses -Werror regardless of --disable-werror, and this will cause a
		# build failure when -D_FORTIFY_SOURCE=2 causes build time warnings:
		sed -e "s/-Werror//" -i libgomp/configure

		# The fixincludes script is known to occasionally erroneously attempt to
		# "fix" the system headers installed so far. As the headers up to this point
		# are known to not require fixing, issue the following command to prevent
		# the fixincludes script from running:
		sed -i 's@\./fixinc\.sh@-c true@' gcc/Makefile.in

		sed -i gcc/Makefile.in \
			-e "s/-fno-exceptions/& -fno-asynchronous-unwind-tables/"

		# we want to be able to control the pie patch logic via something other
		# than ALL_CFLAGS...
		sed -i gcc/Makefile.in \
			-e '/^ALL_CFLAGS/iHARD_CFLAGS = ' \
			-e 's|^ALL_CFLAGS = |ALL_CFLAGS = $(HARD_CFLAGS) |'

		# Enable the GCC hardening by default.
		sed -i gcc/Makefile.in \
			-e "s|^HARD_CFLAGS = |HARD_CFLAGS = %{HARD_CFLAGS} |"

		# Compile the compiler with -fPIC as well.
		sed -i gcc/Makefile.in \
			-e "s|^ESP_NOPIE_CFLAGS = .*|ESP_NOPIE_CFLAGS =|"

		# Default to -gdwarf-4 -fno-debug-types-section rather than -gdwarf-2
		sed -i gcc/common.opt \
			-e '/UInteger Var(dwarf_version)/s/Init(2)/Init(4)/' \
			-e '/flag_debug_types_section/s/Init(1)/Init(0)/' \
			-e '/dwarf_record_gcc_switches/s/Init(0)/Init(1)/' \
			-e 's/\(may be either 2, 3 or 4; the default version is \)2\./\14./'

		./contrib/gcc_update --touch
	end

	build
		cd %{DIR_SRC}/gcc-build

		# Modify CFLAGS
		CFLAGS="%{CFLAGS}"
		CFLAGS=$(echo ${CFLAGS} | sed -e 's/\(-Wp,\)\?-D_FORTIFY_SOURCE=[12]//g')
		CFLAGS=$(echo ${CFLAGS} | sed -e 's/-m64//g;s/-m32//g;s/-m31//g')
		CFLAGS=$(echo ${CFLAGS} | sed -e 's/-march=i.86//g')
		CFLAGS=$(echo ${CFLAGS} | sed -e 's/ -pipe / /g')
		CFLAGS=$(echo "${CFLAGS}" | sed -e 's/[[:blank:]]\+/ /g')
		CXXFLAGS=$(echo  ${CFLAGS} | sed -e 's/ -Wall//g')

		CFLAGS="${CFLAGS}" \
		CXXFLAGS="${CXXFLAGS}" \
		XCFLAGS="${CFLAGS}" \
		TCFLAGS="${CFLAGS}" \
		../%{thisapp}/configure \
			--build=%{DISTRO_BUILDTARGET} \
			--prefix=/usr \
			--libdir=%{libdir} \
			--libexecdir=%{libdir} \
			--mandir=/usr/share/man \
			--enable-esp \
			--enable-shared \
			--enable-threads=posix \
			--enable-__cxa_atexit \
			--enable-clocale=gnu \
			--enable-languages=c,c++,lto \
			--enable-bootstrap \
			--enable-checking=release \
			--disable-werror \
			--disable-libssp \
			--disable-static \
			--with-system-zlib \
			--with-bugurl=http://bugtracker.ipfire.org \
			--disable-libunwind-exceptions \
			--enable-gnu-unique-object \
			--enable-linker-build-id \
			%{configure_options}

		# GCC does not support a parallel build.
		make %{make_bootstrap} BOOT_CFLAGS="${CFLAGS}"
	end

	#test
	#	cd %{DIR_SRC}/gcc-build && make check
	#	cd %{DIR_APP} && ./contrib/test_summary
	#end

	install
		cd %{DIR_SRC}/gcc-build
		make install DESTDIR=%{BUILDROOT}

		# Check if the installation path exists.
		FULLPATH="%{BUILDROOT}%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}"
		[ -d "${FULLPATH}" ] || exit 1

		mkdir -pv %{BUILDROOT}%{prefix}/lib
		ln -sfv ../bin/cpp %{BUILDROOT}%{prefix}/lib/cpp
		ln -sfv gcc %{BUILDROOT}/usr/bin/cc

		# Fix libgcc_s symlinks.
		rm -f ${FULLPATH}/libgcc_s.so %{BUILDROOT}%{libdir}/libgcc_s.so
		case "%{DISTRO_ARCH}" in
			arm*)
				cat <<EOF >${FULLPATH}/libgcc_s.so
		/* GNU ld script
		   Use the shared library, but some functions are only in
		   the static library, so try that secondarily.  */
		OUTPUT_FORMAT(elf32-littlearm)
		GROUP ( %{libdir}/libgcc_s.so.1 libgcc.a )
		EOF
				;;
			*)
				ln -svf ../../../../../%{libdir}/libgcc_s.so.1 ${FULLPATH}/libgcc_s.so
				;;
		esac

		# Remove some GNU debugger stuff.
		rm -vf %{BUILDROOT}%{libdir}/lib*.py

		# Install missing header file(s) on ARM.
		case "%{DISTRO_ARCH}" in
			arm*)
				cp -vf %{DIR_APP}/gcc/config/vxworks-dummy.h \
					${FULLPATH}/plugin/include/config/
				cp -vf %{DIR_APP}/gcc/config/arm/arm-cores.def \
					${FULLPATH}/plugin/include/config/arm/
				;;
		esac

		# libgomp
		mv -vf %{BUILDROOT}%{libdir}/libgomp.spec ${FULLPATH}/
		ln -svf ../../../libgomp.so.1.0.0 ${FULLPATH}/libgomp.so
		chmod 755 %{BUILDROOT}%{libdir}/libgomp.so.1.*

		# libstdc++
		ln -svf ../../../libstdc++.so.6.0.16 ${FULLPATH}/libstdc++.so

		# libmudflap
		ln -svf ../../../libmudflap.so.0.0.0 ${FULLPATH}/libmudflap.so
		ln -svf ../../../libmudflapth.so.0.0.0 ${FULLPATH}/libmudflapth.so
		chmod 755 %{BUILDROOT}%{libdir}/libmudflap{,th}.so.0.*

		# libquadmath
		if [ "%{build_libquadmath}" = "1" ]; then
			ln -svf ../../../libquadmath.so.0.0.0 ${FULLPATH}/libquadmath.so
			chmod 755 %{BUILDROOT}%{libdir}/libquadmath.so.0.*
		fi
	end

	keep_libraries
		%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}/libgcc.a
		%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}/libgcc_eh.a
	end
end

packages
	package %{name}
		groups += Build

		requires
			binutils >= %{required_binutils_version}
			filesystem >= 002
			glibc-devel
			gmp-devel
			cpp = %{thisver}
			libgcc = %{thisver}
			libgomp = %{thisver}
		end

		# We do not ship libgcc-devel anymore.
		provides += libgcc-devel = %{thisver}
		obsoletes += libgcc-devel < %{thisver}

		if "%{build_cloog_ppl}" == "1"
			requires += cloog-ppl >= 0.15
		end
	end

	package %{name}-c++
		summary = C++ support for GCC.
		description
			This package adds C++ support to the GNU Compiler Collection.
			It includes support for most of the current C++ specification,
			including templates and exception handling.
		end

		requires
			gcc = %{thisver}
			libstdc++ = %{thisver}
			libstdc++-devel = %{thisver}
		end

		files
			/usr/bin/*++
			%{libdir}/gcc/*/*/cc1plus
			/usr/share/man/man*/*++*
		end
	end

	package cpp
		summary = The C Preprocessor.
		description
			Cpp is the GNU C-Compatible Compiler Preprocessor.
			Cpp is a macro processor which is used automatically
			by the C compiler to transform your program before actual
			compilation. It is called a macro processor because it allows
			you to define macros, abbreviations for longer
			constructs.

			The C preprocessor provides four separate functionalities: the
			inclusion of header files (files of declarations that can be
			substituted into your program); macro expansion (you can define macros,
			and the C preprocessor will replace the macros with their definitions
			throughout the program); conditional compilation (using special
			preprocessing directives, you can include or exclude parts of the
			program according to various conditions); and line control (if you use
			a program to combine or rearrange source files into an intermediate
			file which is then compiled, you can use line control to inform the
			compiler about where each source line originated).

			You should install this package if you are a C programmer and you use
			macros.
		end
		group = Development/Languages

		files
			%{prefix}/lib/cpp
			%{bindir}/cpp
			%{mandir}/man1/cpp.1*
			%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}/cc1
		end

		provides = /lib/cpp
	end

	package libgcc
		summary = GCC shared support library.
		description
			This package contains GCC shared support library which is needed
			e.g. for exception handling support.
		end

		files
			%{libdir}/libgcc*.so.*
		end
	end

	package libstdc++
		summary = GNU Standard C++ Library.
		description
			The libstdc++ package contains a rewritten standard compliant GCC Standard
			C++ Library.
		end

		files
			%{libdir}/libstdc++*.so.*
		end
	end

	package libstdc++-devel
		summary = Header files and libraries for C++ development.
		description
			This is the GNU implementation of the standard C++ libraries. This
			package includes the header files and libraries needed for C++
			development. This includes rewritten implementation of STL.
		end

		requires
			libstdc++ = %{thisver}
		end

		files
			%{includedir}/c++
			%{libdir}/libstdc++*.so
		end
	end

	package libgomp
		summary = GCC OpenMP v3.0 shared support library.
		description
			This package contains GCC shared support library which is needed
			for OpenMP v3.0 support.
		end

		files
			%{libdir}/libgomp*.so.*
		end
	end

	package libmudflap
		summary = GCC mudflap shared support library.
		description
			This package contains GCC shared support library which is needed
			for mudflap support.
		end

		files
			%{libdir}/libmudflap*.so.*
		end
	end

	package libmudflap-devel
		summary = Development files for GCC mudflap support.
		description
			This package contains headers for building mudflap-instrumented programs.

			To instrument a non-threaded program, add -fmudflap
			option to GCC and when linking add -lmudflap, for threaded programs
			also add -fmudflapth and -lmudflapth.
		end

		requires
			libmudflap = %{thisver}
		end

		files
			%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}/include/mf-runtime.h
			%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}/libmudflap.so
			%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}/libmudflapth.so
		end
	end

	if "%{build_libquadmath}" == "1"
		package libquadmath
			summary = GCC __float128 shared support library.
			description
				This package contains GCC shared support library which is needed
				for __float128 math support and for Fortran REAL*16 support.
			end

			files
				%{libdir}/libquadmath*.so.*
			end
		end

		package libquadmath-devel
			summary = Development files for GCC __float128 support.
			description
				This package contains headers for building Fortran programs using
				REAL*16 and programs using __float128 math.
			end

			requires
				gcc = %{thisver}
				libquadmath = %{thisver}
			end

			files
				%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}/include/quadmath.h
				%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}/include/quadmath_weak.h
				%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}/libquadmath.so
			end
		end
	end

	package gcc-plugin-devel
		summary = Support for compiling GCC plugins.
		description
			This package contains header files and other support files
			for compiling GCC plugins.  The GCC plugin ABI is currently
			not stable, so plugins must be rebuilt any time GCC is updated.
		end

		requires
			gcc = %{thisver}
			gmp-devel >= 4.1.2-8
			mpfr-devel >= 2.2.1
			libmpc-devel >= 0.8.1
		end

		files
			%{libdir}/gcc/%{DISTRO_BUILDTARGET}/%{version}/plugin
		end
	end

	package %{name}-debuginfo
		template DEBUGINFO
	end
end