Chapter 16 : Compile and Install Libstdc++ - Compiling a Cross-Toolchain

Hi,

In this chapter we are going to discuss on compiling and installing Libstdc++, this is part of the gcc-10.2.0 package.

Note :

- Please check the version of the package when you compile and install, at the time of writing the package was at version 10.2.0

- You should be logged in as lfs user, when you perform the actions described here.

- Change directory to the sources folder (/mnt/lfs/sources)

- Please check http://linuxfromscratch.org/lfs/view/stable/chapter05/gcc-libstdc++-pass1.html for more details.

Remove the folder gcc-10.2.0 in case if you still have in the sources directory and extract it again.

$ tar -xvf gcc-10.2.0.tar.xz

Change directory to gcc-10.2.0

$ cd gcc-10.2.0

As per practice, create and change to build directory.

$ mkdir -v build

$ cd build

Preparing Libstdc++ for compiling

$ ../libstdc++-v3/configure           \

    --host=$LFS_TGT                 \

    --build=$(../config.guess)      \

    --prefix=/usr                   \

    --disable-multilib              \

    --disable-nls                   \

    --disable-libstdcxx-pch         \

    --with-gxx-include-dir=/tools/$LFS_TGT/include/c++/10.2.0

Compiling Libstdc++

$ make -j4

Installing Libstdc++

$ make DESTDIR=$LFS install

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