From octave-maintainers-request at bevo dot che dot wisc dot edu  Sat Dec  9 01:33:01 2000
Subject: strptime? compiling CVS sources problem...
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: John Smith <john at arrows dot demon dot co dot uk>
Cc: octave-maintainers at bevo dot che dot wisc dot edu
Date: Sat, 9 Dec 2000 01:32:49 -0600

On  9-Dec-2000, John Smith <john at arrows dot demon dot co dot uk> wrote:

| Hello,
| 
| Compiling a CVS octave collected today, I generate this error
| message
| 
|   gcc -c  -I. -I../../octave/liboctave -I.. -I../liboctave -I../src
|     -I../libcruft/misc -I../../octave -I../../octave/liboctave
|     -I../../octave/src -I../../octave/libcruft/misc  -I../../octave/glob
|     -I../glob -DHAVE_CONFIG_H -mieee-fp -g -O2 -Wall
|     ../../octave/liboctave/strptime.c -o strptime.o
|     ../../octave/liboctave/strptime.c: In function `strptime_internal':
|     ../../octave/liboctave/strptime.c:576: warning: implicit declaration of
|              function `localtime_r'
|     ../../octave/liboctave/strptime.c:576: warning: comparison between pointer
|              and integer
|     ../../octave/liboctave/strptime.c: In function `strptime':
|     ../../octave/liboctave/strptime.c:863: argument `buf' doesn't match
|              prototype
|     /usr/include/time.h:92: prototype declaration
| 
| 
| Warning at 576:
| The function localtime_r in /usr/include/time.h is protected by
| 
|      #if defined(_POSIX_THREAD_SAFE_FUNCTIONS) || defined(_REENTRANT)
| 
|      extern char* asctime_r     __P((__const struct tm *, char *));
|      extern char* ctime_r       __P((__const time_t *, char *));
|      extern struct tm* gmtime_r	__P((__const time_t *, struct tm *));
|      extern struct tm* localtime_r __P((__const time_t *, struct tm *));
| 
|      #endif
| and doesn't get declared. But config.h does set HAVE_LOCALTIME_R to 1.
| I don't suppose it really matters...
| 
| Error at 863:
| The strptime in /usr/include/time.h is declared
| 
|    extern char * strptime __P ((char * __s, __const char * __fmt,
| 			        struct tm * __tm));
| 
| whereas in liboctave/strptime.c it appears as
| 
|    char *
|    strptime (buf, format, tm)
|         const char *buf;
|         const char *format;
|         struct tm *tm;
|  
| which is enough different to trigger the error at line 863.
| 
| The config.h contains
|    /* Define if you have the strptime function.  */
|    #define HAVE_STRPTIME 1
| 
| Is this supposed to have any effect, in the sense of only declaring
| strptime if it doesn't already exist?
| 
| I have a fairly ancient Linux system. Perhaps I should simply be told 
| to upgrade it.

Perhaps.

Please try the following patch and let me know if it solves the
problem.

Thanks,

jwe


2000-12-09  John W. Eaton  <jwe at bevo dot che dot wisc dot edu>

	* strptime.c: Surround everything after including config.h in
	#ifndef HAVE_STRPTIME ... #endif.


Index: strptime.c
===================================================================
RCS file: /usr/local/cvsroot/octave/liboctave/strptime.c,v
retrieving revision 1.3
diff -u -r1.3 strptime.c
--- strptime.c	2000/02/01 10:07:26	1.3
+++ strptime.c	2000/12/09 07:32:13
 at @ -27,6 +27,8 @@
 # include <config.h>
 #endif
 
+#ifndef HAVE_STRPTIME
+
 #include <ctype.h>
 #ifdef _LIBC
 #  include <langinfo.h>
 at @ -869,3 +871,5 @@
 #endif
   return strptime_internal (buf, format, tm, &decided);
 }
+
+#endif