added libstdc++ bootstrap step

build/libstdc++/build.bash

@@ -0,0 +1,52 @@
+. $PROJECTDIR/build/gcc/package.env
+
+fetch $GCC_URL
+
+cd $SOURCES && tar xf gcc-$GCC_VERSION.tar.xz && cd gcc-$GCC_VERSION
+
+bootstrap() {
+	mkdir -p build && cd build
+
+	../libstdc++-v3/configure \
+		--host=$TARGET \
+		--build=$(../config.guess) \
+		--prefix=/usr \
+		--disable-multilib \
+		--disable-nls \
+		--disable-libstdcxx-pch \
+		--with-gxx-include-dir=/cross/$TARGET/include/c++/$GCC_VERSION > /dev/null
+
+	make > /dev/null && make DESTDIR=$SYSROOT install > /dev/null 
+
+	rm $SYSROOT/usr/lib/lib{stdc++{,exp,fs},supc++}.la
+}
+
+
+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

build/libstdc++/package.env

@@ -0,0 +1,7 @@
+export GCC_VERSION=15.2.0
+
+IFS='.' read -r GCC_VERSION_MAJOR GCC_VERSION_MINOR GCC_VERSION_PATCH <<< $GCC_VERSION
+export GCC_VERSION_MAJOR GCC_VERSION_MINOR GCC_VERSION_PATCH
+
+export GCC_URL=https://mirror.ufs.ac.za/gnu/gcc/gcc-$GCC_VERSION/gcc-$GCC_VERSION.tar.xz
+