#include <fontconfig.h>
const FcChar8 * FcConfigNormalizeFontDir(FcConfig *config, const FcChar8 *dir);
const FcChar8 * FcConfigNormalizeFontDir
Converts the directory name given in 'dir' to a normal form, i.e. one of the forms which are derived from the font directories specified in the config file.
Fontconfig version 2.4.1