LibC: Don't use BAN inside pwd.cpp

This made pwd.cpp require libstdc++ which meant that getlogin() also
needed libstdc++. This made build process of libstdc++ require itself
which is of course not possible.

toolchain/build.sh

@@ -206,14 +206,13 @@ if [[ -f $BANAN_TOOLCHAIN_PREFIX/bin/$BANAN_TOOLCHAIN_TRIPLE_PREFIX-gcc ]]; then
 	fi
 fi
 
-BUILD_LIBSTDCPP=0
-#BUILD_LIBSTDCPP=$BUILD_GCC
-#if ! (($BUILD_LIBSTDCPP)); then
-#	read -e -p "Do you want to rebuild libstdc++ [y/N]? " choice
-#	if [[ "$choice" == [Yy]* ]]; then
-#		BUILD_LIBSTDCPP=1
-#	fi
-#fi
+BUILD_LIBSTDCPP=$BUILD_GCC
+if ! (($BUILD_LIBSTDCPP)); then
+	read -e -p "Do you want to rebuild libstdc++ [y/N]? " choice
+	if [[ "$choice" == [Yy]* ]]; then
+		BUILD_LIBSTDCPP=1
+	fi
+fi
 
 BUILD_GRUB=1
 if [[ -f $BANAN_TOOLCHAIN_PREFIX/bin/grub-mkstandalone ]]; then