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8.25. libedit stage 2 20251016-3.1

Rebuild libedit in the final target environment so interactive programs use the completed curses stack.

Input assumption: libedit-20251016-3.1.tar.gz is already present in /sources from the chapter 4 source staging step.

Source URL: https://thrysoee.dk/editline/libedit-20251016-3.1.tar.gz

Upstream build note: the release tarball includes a generated autotools configure script. Upstream documents the normal build flow as ./configure, make, and make install; this section uses that flow through lbi_configure.

Licenses:

BSD-3-Clause

Dependencies:

musl (libc)
make
ncurses

libedit is a BSD editline and history library. we need it to provide final target line-editing and command-history functionality for interactive programs such as the rebuilt shell.

Extract and Enter the Source Tree

cd /sources
rm -rf libedit-20251016-3.1
tar -xf libedit-20251016-3.1.tar.gz
cd libedit-20251016-3.1

Configure libedit

CPPFLAGS="-D__STDC_ISO_10646__=201706L" \
lbi_configure \
    --disable-static \
    --enable-shared \
    --disable-examples

Build libedit

make $LWI_MAKE_FLAGS

Install libedit

make install

After this step is complete, you can remove the extracted source directory and source tarball from /sources if you do not plan to rebuild libedit again.

Command Explanations

rm -rf libedit-... and tar -xf: Recreate a clean libedit source tree.
CPPFLAGS="-D__STDC_ISO_10646__=201706L": Enables wide-character assumptions expected by libedit checks.
lbi_configure: Applies the book's /system install layout.
--disable-static and --enable-shared: Build shared libedit without static archives.
--disable-examples: Skips example programs.
make $LWI_MAKE_FLAGS and make install: Build and install libedit.

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