PAC_PROG_F77_HAS_INCDIR
Check whether Fortran accepts -Idir flag
Syntax
PAC_PROG_F77_HAS_INCDIR(directory,action-if-true,action-if-false)
Output Effect
Sets F77_INCDIR to the flag used to choose the directory.
Notes
This refers to the handling of the common Fortran include extension,
not to the use of #include with the C preprocessor.
If directory does not exist, it will be created. In that case, the
directory should be a direct descendant of the current directory.