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Magic Mailing List |
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From: R. Timothy Edwards (tim AT stravinsky DOT jhuapl.edu) Date: Fri Nov 24 2000 - 11:47:47 EST
I've received several emails from people who failed to compile magic 7.1 under
RedHat Linux 7.0. It looks as though the new RedHat redistributed the balance
of SYSV-isms vs. BSD-isms. To make magic compile, it appears to be necessary
to remove "-DSYSV" from the DFLAGS, otherwise the magic compile dies on trying
to include <string.h> with references to parse errors on "memcpy", etc.:
.
.
.
In file included from CIFrdtech.c:40:
/usr/include/string.h:245: warning: conflicting types for built-in function
`memcpy'
/usr/include/string.h:248: parse error before `0'
/usr/include/string.h:248: warning: conflicting types for built-in function
`memset'
/usr/include/string.h:255: parse error before `('
.
.
.
It would appear that the solution is to reconsider Linux either as a
BSD-UNIX with SYSV-like deviations, or a SYSV-UNIX with BSD-like
deviations. If one takes the former approach, then it is necessary
to remove the -DSYSV and make sure that all occurrences of
#ifdef SYSV
become
#if defined(SYSV) || defined(linux)
and all occurences of
#ifndef SYSV
become
#if !defined(SYSV) && !defined(linux)
This needs to be done in plot/plotInt.h line 30, textio/textioInt.h line51,
and textio/txInput.c lines 473, 512, 518, 546, 552, 570, 597, and 638.
Additionally, textio/txInput.c needs the following addition up at the
top of the file (say, line 51):
#ifdef linux
#include <termios.h>
#endif
There is some fallout from not including <string.h> (or alternatively,
<strings.h>) wherein the compiler doesn't get the function prototypes
for all the string functions and spews out lots of warning messages
about pointer casts. This is better than generating parse errors, but
there must be a "correct" solution.
Opinions?
---Tim
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