###############################################################################
# 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    = 4.6.2
release    = 3

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-4.6.0-piepatches-20110407.patch
end

build
	requires
		autogen
		binutils>=%{required_binutils_version}
		dejagnu
		elfutils-devel
		expect
		flex
		glibc-devel
		gmp-devel
		libffi-devel
		mpc-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 ppl-devel
	end

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

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

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

	if "%{DISTRO_ARCH}" == "armv5tel"
		configure_options += --with-float=soft
	end

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

	# CFLAGS for hardening.
	HARD_CFLAGS = -DEFAULT_PIE_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 =|"

		./contrib/gcc_update --touch
	end

	build
		cd %{DIR_SRC}/gcc-build

		# Modify CFLAGS
		OPT_FLAGS="%{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 \
			--libexecdir=/usr/lib \
			--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 profiledbootstrap BOOT_CFLAGS="${OPT_FLAGS}" #%{PARALLELISMFLAGS}
	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}

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

		# Move libgcc_s to /lib
		mv -vf %{BUILDROOT}/usr/lib/libgcc_s.so.1 %{BUILDROOT}/lib/
		ln -svf ../../lib/libgcc_s.so.1 %{BUILDROOT}/usr/lib/libgcc_s.so

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

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

packages
	package %{name}
		groups += Build

		requires
			binutils>=%{required_binutils_version}
			glibc-devel
			gmp-devel
			libgcc-devel
		end

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

	# XXX add package descriptions

	package %{name}-c++
		requires = gcc=%{thisver} libstdc++-devel

		files
			/usr/bin/*++
			/usr/lib/gcc/*/*/cc1plus
			/usr/share/man/man*/*++*
		end
	end

	package libgcc
		files
			/lib/libgcc*.so.*
		end
	end

	package libgcc-devel
		requires = libgcc=%{thisver}

		files
			/usr/lib/libgcc*.so
		end
	end

	package libstdc++
		files
			/usr/lib/libstdc++*.so.*
		end
	end

	package libstdc++-devel
		files
			/usr/include/c++
			/usr/lib/libstdc++*.so
		end
	end

	package libgomp
		files
			/usr/lib/libgomp*.so.*
		end
	end

	package libgomp
		files
			/usr/lib/libgomp*.so
			/usr/lib/libgomp.spec
		end
	end

	package libmudflap
		files
			/usr/lib/libmudflap*.so.*
		end
	end

	package libmudflap-devel
		files
			/usr/lib/libmudflap*.so
		end
	end

	package libquadmath
		files
			/usr/lib/libquadmath*.so.*
		end
	end

	package libquadmath-devel
		files
			/usr/lib/libquadmath*.so
		end
	end

	package %{name}-debuginfo
		template DEBUGINFO
	end
end