Supplemental Linux® From Scratch (Systemd Edition) - Versjon #e961

Kapittel 2. General Libraries

yajl-2.1.0

Introduction to yajl

The yajl package provides a JSON library.

Additional Downloads

yajl Dependencies

Required

CMake

Installation of yajl

Since the last commit to this package is almost a decade old, issues have came up and need to be fixed before building. Apply required patches to fix the important ones: 

patch -Np1 -i ../yajl-2.1.0-CVE-2017-16516.patch &&
patch -Np1 -i ../yajl-2.1.0-CVE-2022-24795.patch &&
patch -Np1 -i ../yajl-2.1.0-memory_leak.patch

Fix building with CMake-4.0.0: 

patch -Np1 -i ../6fe59ca50dfd65bdb3d1c87a27245b2dd1a072f9.patch

Install yajl by running the following commands: 

mkdir build &&
cd    build &&

cmake -D CMAKE_INSTALL_PREFIX=/usr   \
      -D CMAKE_BUILD_TYPE=Release    \
      -D BUILD_SHARED_LIBS=ON        \
      -D CMAKE_SKIP_INSTALL_RPATH=ON \
      -W no-dev -G Ninja .. &&

ninja

Now, as the root user: 

ninja install &&
rm -vf /usr/lib/libyajl_s.a

Command Explanations

-D CMAKE_SKIP_INSTALL_RPATH=ON: Denne bryteren gjør at cmake fjerner hardkodede biblioteksøk stier (rpath) når du installerer en binær kjørbar fil eller et delt bibliotek. Denne pakken trenger ikke rpath når den er installert på standard plassering, og rpath kan noen ganger forårsake uønskede effekter eller til og med sikkerhetsproblemer.

rm -vf /usr/lib/libyajl_s.a: This command removes a useless static library.

Contents

Installed Programs: json_reformat and json_verify
Installed Libraries: libyajl
Installed Directories: /usr/include/yajl

Short Descriptions

json_reformat

reformats JSON from STDIN

json_verify

validates JSON from STDIN

libyajl

provides functions that can help with parsing JSON in C