If your system lacks /usr/include/local.h ,
then you should create an appropriate local.h in
this directory.  An appropriate local.h may simply
be empty, or it may #define VAX or #define CRAY
(or whatever else you must do to make fp.h work right).
Alternatively, edit fp.h to suite your machine.

If your system lacks /usr/include/fcntl.h , then you
should simply create an empty fcntl.h in this directory.

If your system's sprintf does not work the way ANSI C
specifies -- specifically, if it does not return the
number of characters transmitted -- then insert the line

#define USE_STRLEN

at the end of fmt.h .  This is necessary with
at least some versions of Sun software.

If you get error messages about references to cf->_ptr
and cf->_base when compiling wrtfmt.c and wsfe.c or to
stderr->_flag when compiling err.c, then insert the line

#define NON_UNIX_STDIO

at the beginning of fio.h, and recompile these modules.

You may need to supply the following non-ANSI routines:

  fstat(int fileds, struct stat *buf) is similar
to stat(char *name, struct stat *buf), except that
the first argument, fileds, is the file descriptor
returned by open rather than the name of the file.
fstat is used in the system-dependent routine
canseek (in the libI77 source file err.c), which
is supposed to return 1 if it's possible to issue
seeks on the file in question, 0 if it's not; you may
need to suitably modify err.c .  On non-UNIX systems,
you can avoid references to fstat and stat by compiling
err.c, inquire.c, open.c, and util.c with MSDOS defined;
in that case, you may need to supply access(char *Name,0),
which is supposed to return 0 if file Name exists,
nonzero otherwise.

  char * mktemp(char *buf) is supposed to replace the
6 trailing X's in buf with a unique number and then
return buf.  The idea is to get a unique name for
a temporary file.

On non-UNIX systems, you may need to change a few other,
e.g.: the form of name computed by mktemp() in endfile.c and
open.c; the use of the open(), close(), and creat() system
calls in endfile.c, err.c, open.c; and the modes in calls on
fopen() and fdopen() (and perhaps the use of fdopen() itself
-- it's supposed to return a FILE* corresponding to a given
an integer file descriptor) in err.c and open.c (component ufmt
of struct unit is 1 for formatted I/O -- text mode on some systems
-- and 0 for unformatted I/O -- binary mode on some systems).

For Turbo C++, in particular, you need to adjust the mktemp
invocations and should compile all of libI77 with -DMSDOS .
You also need to #undef ungetc in lread.c and rsne.c .
Don't use -mh -- it is horribly broken.

If you want to be able to load against libI77 but not libF77,
then you will need to add sig_die.o (from libF77) to libI77.

If you wish to use translated Fortran that has funny notions
of record length for direct unformatted I/O (i.e., that assumes
RECL= values in OPEN statements are not bytes but rather counts
of some other units -- e.g., 4-character words for VMS), then you
should insert an appropriate #define for url_Adjust at the
beginning of open.c .  For VMS Fortran, for example,
#define url_Adjust(x) x *= 4
would suffice.

To check for transmission errors, issue the command
	make check
This assumes you have the xsum program whose source, xsum.c,
is distributed as part of "all from f2c/src".  If you do not
have xsum, you can obtain xsum.c by sending the following E-mail
message to netlib@research.att.com
	send xsum.c from f2c/src

The makefile assumes you have installed f2c.h in a standard
place (and does not cause recompilation when f2c.h is changed);
f2c.h comes with "all from f2c" (the source for f2c) and is
available separately ("f2c.h from f2c").
