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configure.in: Test for ftruncate.

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2001-02-26  Toon Moene  <toon@moene.indiv.nluug.nl>

	* libI77/configure.in: Test for ftruncate.
	* libI77/configure: Rebuilt.
	* libI77/endfile.c: Use fflush/ftruncate when available.

From-SVN: r40072
This commit is contained in:
Toon Moene 2001-02-26 21:23:41 +01:00 committed by Toon Moene
parent 3914b81a45
commit 978970473b
4 changed files with 85 additions and 10 deletions
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6
libf2c/ChangeLog
View File

@ -1,3 +1,9 @@
2001-02-26 Toon Moene <toon@moene.indiv.nluug.nl>
* libI77/configure.in: Test for ftruncate.
* libI77/configure: Rebuilt.
* libI77/endfile.c: Use fflush/ftruncate when available.
2001-02-19 Joseph S. Myers <jsm28@cam.ac.uk>
* libF77/Version.c, libI77/Version.c, libU77/Version.c: Update G77

71
libf2c/libI77/configure vendored
View File

@ -1132,7 +1132,7 @@ else
int main() {
/* Ultrix mips cc rejects this. */
typedef int charset[2]; const charset x;
typedef int charset[2]; const charset x = {0,0};
/* SunOS 4.1.1 cc rejects this. */
char const *const *ccp;
char **p;
@ -1295,7 +1295,7 @@ else
echo "$ac_t""no" 1>&6
fi
for ac_func in mkstemp
for ac_func in ftruncate
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:1302: checking for $ac_func" >&5
@ -1350,7 +1350,7 @@ else
fi
done
for ac_func in tempnam
for ac_func in mkstemp
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:1357: checking for $ac_func" >&5
@ -1405,25 +1405,80 @@ else
fi
done
for ac_func in tempnam
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:1412: checking for $ac_func" >&5
if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 1417 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char $ac_func(); below. */
#include <assert.h>
/* Override any gcc2 internal prototype to avoid an error. */
/* We use char because int might match the return type of a gcc2
builtin and then its argument prototype would still apply. */
char $ac_func();
int main() {
/* The GNU C library defines this for functions which it implements
to always fail with ENOSYS. Some functions are actually named
something starting with __ and the normal name is an alias. */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
$ac_func();
#endif
; return 0; }
EOF
if { (eval echo configure:1440: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_func_$ac_func=yes"
else
echo "configure: failed program was:" >&5
cat conftest.$ac_ext >&5
rm -rf conftest*
eval "ac_cv_func_$ac_func=no"
fi
rm -f conftest*
fi
if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
echo "$ac_t""yes" 1>&6
ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
cat >> confdefs.h <<EOF
#define $ac_tr_func 1
EOF
else
echo "$ac_t""no" 1>&6
fi
done
# posix will guarantee the right behaviour for sprintf, else we can't be
# sure; HEADER_STDC wouldn't be the right check in sunos4, for instance.
# However, on my sunos4/gcc setup unistd.h leads us wrongly to believe
# we're posix-conformant, so always do the test.
echo $ac_n "checking for ansi/posix sprintf result""... $ac_c" 1>&6
echo "configure:1415: checking for ansi/posix sprintf result" >&5
echo "configure:1470: checking for ansi/posix sprintf result" >&5
if test "$cross_compiling" = yes; then
g77_cv_sys_sprintf_ansi=no
else
cat > conftest.$ac_ext <<EOF
#line 1420 "configure"
#line 1475 "configure"
#include "confdefs.h"
#include <stdio.h>
/* does sprintf return the number of chars transferred? */
main () {char foo[2]; (sprintf(foo, "1") == 1) ? exit(0) : exit(1);}
EOF
if { (eval echo configure:1427: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
if { (eval echo configure:1482: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
then
g77_cv_sys_sprintf_ansi=yes
else
@ -1454,9 +1509,9 @@ fi
# define NON_ANSI_RW_MODES on unix (can't hurt)
echo $ac_n "checking NON_ANSI_RW_MODES""... $ac_c" 1>&6
echo "configure:1458: checking NON_ANSI_RW_MODES" >&5
echo "configure:1513: checking NON_ANSI_RW_MODES" >&5
cat > conftest.$ac_ext <<EOF
#line 1460 "configure"
#line 1515 "configure"
#include "confdefs.h"
#ifdef unix
yes

1
libf2c/libI77/configure.in
View File

@ -134,6 +134,7 @@ else
AC_MSG_RESULT(no)
fi
AC_CHECK_FUNCS(ftruncate)
AC_CHECK_FUNCS(mkstemp)
AC_CHECK_FUNCS(tempnam)

17
libf2c/libI77/endfile.c
View File

@ -1,6 +1,8 @@
#include "f2c.h"
#include "fio.h"
#include <unistd.h>
#ifdef KR_headers
extern char *strcpy();
extern FILE *tmpfile();
@ -38,6 +40,7 @@ integer f_end(alist *a)
return(b->useek ? t_runc(a) : 0);
}
#ifndef HAVE_FTRUNCATE
static int
#ifdef KR_headers
copy(from, len, to) FILE *from, *to; register long len;
@ -56,6 +59,7 @@ copy(FILE *from, register long len, FILE *to)
}
return 0;
}
#endif /* !defined(HAVE_FTRUNCATE) */
int
#ifdef KR_headers
@ -66,8 +70,11 @@ t_runc(alist *a)
{
long loc, len;
unit *b;
FILE *bf, *tf;
int rc = 0;
int rc;
FILE *bf;
#ifndef HAVE_FTRUNCATE
FILE *tf;
#endif /* !defined(HAVE_FTRUNCATE) */
b = &f__units[a->aunit];
if(b->url)
@ -77,6 +84,8 @@ t_runc(alist *a)
len=ftell(bf);
if (loc >= len || b->useek == 0 || b->ufnm == NULL)
return(0);
#ifndef HAVE_FTRUNCATE
rc = 0;
fclose(b->ufd);
if (!loc) {
if (!(bf = fopen(b->ufnm, f__w_mode[b->ufmt])))
@ -118,6 +127,10 @@ done1:
fclose(tf);
done:
f__cf = b->ufd = bf;
#else /* !defined(HAVE_FTRUNCATE) */
fflush(b->ufd);
rc = ftruncate(fileno(b->ufd),loc);
#endif /* !defined(HAVE_FTRUNCATE) */
if (rc)
err(a->aerr,111,"endfile");
return 0;