B.0.1 Configuring a package that uses GiNaC

The directory where the GiNaC libraries are installed needs to be found by your system's dynamic linkers (both compile- and run-time ones). See the documentation of your system linker for details. Also make sure that ‘ginac.pc’ is in pkg-config's search path, See (*manpages*)pkg-config.

The short summary below describes how to do this on a GNU/Linux system.

Suppose GiNaC is installed into the directory ‘PREFIX’. To tell the linkers where to find the library one should

• edit ‘/etc/ld.so.conf’ and run ldconfig. For example,

  # echo PREFIX/lib >> /etc/ld.so.conf # ldconfig

• or set the environment variables LD_LIBRARY_PATH and LD_RUN_PATH

  $ export LD_LIBRARY_PATH=PREFIX/lib $ export LD_RUN_PATH=PREFIX/lib

• or give a ‘-L’ and ‘--rpath’ flags when running configure, for instance:

  $ LDFLAGS='-Wl,-LPREFIX/lib -Wl,--rpath=PREFIX/lib' ./configure

To tell pkg-config where the ‘ginac.pc’ file is, set the PKG_CONFIG_PATH environment variable:

$ export PKG_CONFIG_PATH=PREFIX/lib/pkgconfig

Finally, run the configure script

$ ./configure