added gcc bootstrap step

build/gcc/build.bash

@@ -0,0 +1,81 @@
+. $PROJECTDIR/build/gcc/package.env
+. $PROJECTDIR/build/gmp/package.env
+. $PROJECTDIR/build/isl/package.env
+. $PROJECTDIR/build/mpc/package.env
+. $PROJECTDIR/build/mpfr/package.env
+
+fetch $GCC_URL
+fetch $GMP_URL
+fetch $ISL_URL
+fetch $MPC_URL
+fetch $MPFR_URL
+
+cd $SOURCES && tar xf gcc-$GCC_VERSION.tar.xz && cd gcc-$GCC_VERSION
+
+
+bootstrap() {
+	tar xf ../gmp-$GMP_VERSION.tar.xz && mv gmp-$GMP_VERSION gmp
+	tar xf ../isl-$ISL_VERSION.tar.xz && mv isl-$ISL_VERSION isl
+	tar xf ../mpc-$MPC_VERSION.tar.gz && mv mpc-$MPC_VERSION mpc
+	tar xf ../mpfr-$MPFR_VERSION.tar.xz && mv mpfr-$MPFR_VERSION mpfr
+
+	sed -e '/m64=/s/lib64/lib/' -i.orig gcc/config/i386/t-linux64
+
+	mkdir -p build && cd build
+
+	../configure \
+		--target=$TARGET \
+		--prefix=$SYSROOT/cross \
+		--with-glibc-version=2.43 \
+		--with-sysroot=$SYSROOT \
+		--with-newlib \
+		--without-headers \
+		--enable-default-pie \
+		--enable-default-ssp \
+		--disable-nls \
+		--disable-shared \
+		--disable-multilib \
+		--disable-threads \
+		--disable-libatomic \
+		--disable-libgomp \
+		--disable-libquadmath \
+		--disable-libssp \
+		--disable-libvtv \
+		--disable-libstdcxx \
+		--enable-languages=c,c++ > /dev/null
+
+	make > /dev/null && make install > /dev/null 
+
+	cd ..
+	cat gcc/limitx.h gcc/glimits.h gcc/limity.h > `dirname $($TARGET-gcc -print-libgcc-file-name)`/include/limits.h
+}
+
+
+toolchain() {
+	echo toolchain
+}
+
+setup() {
+	echo setup
+}
+
+final() {
+	echo final
+}
+
+case $1 in 
+    bootstrap)
+		bootstrap
+		;;
+	toolchain)
+		toolchain
+	setup)
+		setup
+		;;
+	final)
+		final
+		;;
+esac
+
+
+cd $SOURCES && rm -rf $SOURCES/gcc-$GCC_VERSION