FcConfigGetFilename - Find a config file

Given the specified external entity name, return the associated filename. This provides applications a way to convert various configuration file references into filename form. A null or empty name indicates that the default configuration file should be used; which file this references can be overridden with the FONTCONFIG_FILE environment variable. Next, if the name starts with ~, it refers to a file in the current users home directory. Otherwise if the name doesn't start with '/', it refers to a file in the default configuration directory; the built-in default directory can be overridden with the FONTCONFIG_PATH environment variable. The result of this function is affected by the FONTCONFIG_SYSROOT environment variable or equivalent functionality. Fontconfig 2.15.0 04 July 2025 FcConfigGetFilename(3)

FcConfigGetFilename - Find a config file