Placement of the Environment File

The tex4ht.c and t4ht.c programs retrieve the information about their platform from an environment file. The programs search the file at the following locations, in the given order.

A given address may start with the character ‘~’. This character is interpreted to be the directory address of the root (as provided in an environment variable named HOME).

The file tex4ht.env may be renamed to ‘.tex4ht’, if your system allows names consisting only of the extension part.