Multilib Linux From Scratch - Version ml-12.4-195-systemd

Chapter 8. Installing Basic System Software

8.20. Pkgconf-2.5.1

The pkgconf package is a successor to pkg-config and contains a tool for passing the include path and/or library paths to build tools during the configure and make phases of package installations.

Approximate build time: less than 0.1 SBU
Required disk space: 5.0 MB

8.20.1. Installation of Pkgconf

Prepare Pkgconf for compilation: 

./configure --prefix=/usr    \
            --disable-static \
            --docdir=/usr/share/doc/pkgconf-2.5.1

Compile the package: 

make

Install the package: 

make install

To maintain compatibility with the original Pkg-config create two symlinks: 

ln -sv pkgconf   /usr/bin/pkg-config
ln -sv pkgconf.1 /usr/share/man/man1/pkg-config.1

When targetting the x32-bit architecture on 64-bit, some packages will use Pkg-config in a way that will pull in libraries that have only been built for 64-bit. This spirals into linker or other errors. This can be fixed by creating Pkg-config personalities which can then be used to override default Pkg-config behavior. Create them now: 

ln -sv pkgconf /usr/bin/x86_64-pc-linux-gnux32-pkg-config
ln -sv pkgconf /usr/bin/x86_64-pc-linux-gnu-pkg-config

mkdir -pv /usr/share/pkgconfig/personality.d

cat > /usr/share/pkgconfig/personality.d/x86_64-pc-linux-gnux32.personality << EOF
Triplet: x86_64-pc-linux-gnux32
SysrootDir: /
DefaultSearchPaths: /usr/libx32/pkgconfig:/usr/share/pkgconfig
SystemIncludePaths: /usr/include
SystemLibraryPaths: /usr/libx32
EOF

cat > /usr/share/pkgconfig/personality.d/x86_64-pc-linux-gnu.personality << EOF
Triplet: x86_64-pc-linux-gnu
SysrootDir: /
DefaultSearchPaths: /usr/lib/pkgconfig:/usr/share/pkgconfig
SystemIncludePaths: /usr/include
SystemLibraryPaths: /usr/lib
EOF

8.20.2. Contents of Pkgconf

Installed programs: pkgconf, pkg-config (link to pkgconf), and bomtool
Installed library: libpkgconf.so
Installed directory: /usr/share/doc/pkgconf-2.5.1

Short Descriptions

pkgconf

Returns meta information for the specified library or package

bomtool

Generates a Software Bill Of Materials from pkg-config .pc files

libpkgconf

Contains most of pkgconf's functionality, while allowing other tools like IDEs and compilers to use its frameworks