Options for Directory Search
These options affect how the `cpp' preprocessor searches for files
specified via the `#include' directive. Therefore, when compiling
Fortran programs, they are meaningful when the preprocessor is used.
Some of these options also affect how `g77' searches for files
specified via the `INCLUDE' directive, although files included by that
directive are not, themselves, preprocessed. These options are:
These affect interpretation of the `INCLUDE' directive (as well as
of the `#include' directive of the `cpp' preprocessor).
Note that `-IDIR' must be specified *without* any spaces between
`-I' and the directory name--that is, `-Ifoo/bar' is valid, but
`-I foo/bar' is rejected by the `g77' compiler (though the
preprocessor supports the latter form). Also note that the
general behavior of `-I' and `INCLUDE' is pretty much the same as
of `-I' with `#include' in the `cpp' preprocessor, with regard to
looking for `header.gcc' files and other such things.
Note: Options for Directory Search, for
information on the `-I' option.
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