6.2. M4-1.4.21

The M4 package contains a macro processor.

Approximate build time: 0.1 SBU

Required disk space: 39 MB

6.2.1. Installation of M4

Ensure packages that use gnulib detect some newer functions found in glibc-2.44.

cat > $LFS/usr/share/config.site << EOF
ac_cv_func_posix_spawn_file_actions_addchdir=yes
ac_cv_func_posix_spawn_file_actions_addfchdir=yes
EOF

Prepare M4 for compilation:

./configure --prefix=/usr   \
            --host=$LFS_TGT \
            --build=$(build-aux/config.guess)

Compile the package:

make

Install the package:

make DESTDIR=$LFS install

Details on this package are located in Section 8.14.2, “Contents of M4.”