If the name referred to by the INCLUDE statement begins with the character /, then it is taken by f77 to mean the absolute path name of the INCLUDE file. Otherwise, f77 looks for the file in the following directories, in this order:
The directory that contains the source file with the INCLUDE statement
The directories that are named in the -Iloc options
The current directory in which the f77 command was issued
The directories in the default list. For a standard install, the default list is:
/opt/SUNWspro/SC5.0/include/f77 /usr/include
For a non-standard install to a directory /mydir/, the default list is:
/mydir/SUNWspro/SC5.0/include/f77 /usr/include
The release number, SC5.0, varies with the release of the set of compilers.
These INCLUDE statements can be nested ten deep.