95 lines
4.3 KiB
Plaintext
95 lines
4.3 KiB
Plaintext
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Type "make" to check the validity of the f2c source and compile f2c.
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On a PC, you may need to compile xsum.c with -DMSDOS (i.e., with
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MSDOS #defined). If your system does not understand ANSI/ISO C
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syntax (i.e., if you have a K&R C compiler), compile xsum.c with
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-DKR_headers. (Eventually this will also be required of the f2c
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source proper.)
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On non-Unix systems where files have separate binary and text modes,
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you may need to "make xsumr.out" rather than "make xsum.out".
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If (in accordance with what follows) you need to modify the makefile
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or any of the source files, first issue a "make xsum.out" (or, if
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appropriate, "make xsumr.out") to check the validity of the f2c source,
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then make your changes, then type "make f2c".
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The file usignal.h is for the benefit of strictly ANSI include files
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on a UNIX system -- the ANSI signal.h does not define SIGHUP or SIGQUIT.
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You may need to modify usignal.h if you are not running f2c on a UNIX
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system.
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Should you get the message "xsum0.out xsum1.out differ", see what lines
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are different (`diff xsum0.out xsum1.out`) and ask netlib to send you
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the files in question "from f2c/src". For example, if exec.c and
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expr.c have incorrect check sums, you would send netlib the message
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send exec.c expr.c from f2c/src
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On some systems, the malloc and free in malloc.c let f2c run faster
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than do the standard malloc and free. Other systems cannot tolerate
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redefinition of malloc and free. If yours is such a system, you may
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either modify the makefile appropriately, or simply execute
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cc -c -DCRAY malloc.c
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before typing "make". Still other systems have a -lmalloc that
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provides performance competitive with that from malloc.c; you may
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wish to compare the two on your system.
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On some BSD systems, you may need to create a file named "string.h"
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whose single line is
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#include <strings.h>
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you may need to add " -Dstrchr=index" to the "CFLAGS =" assignment
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in the makefile, and you may need to add " memset.o" to the "OBJECTS ="
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assignment in the makefile -- see the comments in memset.c .
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For non-UNIX systems, you may need to change some things in sysdep.c,
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such as the choice of intermediate file names.
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On some systems, you may need to modify parts of sysdep.h (which is
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included by defs.h). In particular, for Sun 4.1 systems and perhaps
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some others, you need to comment out the typedef of size_t. For some
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systems (e.g., IRIX 4.0.1 and AIX) it is better to add
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#define ANSI_Libraries
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to the beginning of sysdep.h (or to supply -DANSI_Libraries in the
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makefile).
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Alas, some systems #define __STDC__ but do not provide a true standard
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(ANSI or ISO) C environment, e.g. do not provide stdlib.h . If yours
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is such a system, then (a) you should complain loudly to your vendor
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about __STDC__ being erroneously defined, and (b) you should insert
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#undef __STDC__
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at the beginning of sysdep.h . You may need to make other adjustments.
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For some non-ANSI versions of stdio, you must change the values given
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to binread and binwrite in sysdep.c from "rb" and "wb" to "r" and "w".
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You may need to make this change if you run f2c and get an error
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message of the form
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Compiler error ... cannot open intermediate file ...
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On many systems, it is best to combine libF77 and libI77 into a single
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library, say libf2c, as suggested in "readme from f2c". If you do this,
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then you should adjust the definition of link_msg in sysdep.c
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appropriately (e.g., replacing "-lF77 -lI77" by "-lf2c").
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Some older C compilers object to
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typedef void (*foo)();
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or to
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typedef void zap;
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zap (*foo)();
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If yours is such a compiler, change the definition of VOID in
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f2c.h from void to int.
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For convenience with systems that use control-Z to denote end-of-file,
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f2c treats control-Z characters (ASCII 26, '\x1a') that appear at the
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beginning of a line as an end-of-file indicator. You can disable this
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test by compiling lex.c with NO_EOF_CHAR_CHECK #defined, or can
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change control-Z to some other character by #defining EOF_CHAR to
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be the desired value.
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Please send bug reports to dmg@research.att.com . The old index file
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(now called "readme" due to unfortunate changes in netlib conventions:
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"send readme from f2c") will report recent changes in the recent-change
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log at its end; all changes will be shown in the "changes" file
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("send changes from f2c"). To keep current source, you will need to
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request xsum0.out and version.c, in addition to the changed source
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files.
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