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This time (I hope) I've fixed largefile

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support on Linux (and Solaris, I expect) for real.
The necessary symbols are defined once and for all,
under the assumption that they won't harm elsewhere.
This commit is contained in:
Guido van Rossum 2001-09-09 23:51:39 +00:00
parent a0a6222509
commit 810cc51d5f
4 changed files with 327 additions and 420 deletions
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4
acconfig.h
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@ -74,9 +74,7 @@
/* Defined to enable large file support when an off_t is bigger than a long
and long long is available and at least as big as an off_t. You may need
to add some flags for configuration and compilation to enable this mode.
E.g, for Solaris 2.7:
CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" OPT="-O2 $CFLAGS" \
configure
(For Solaris and Linux, the necessary defines are already defined.)
*/
#undef HAVE_LARGEFILE_SUPPORT

693
configure vendored
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46
configure.in
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@ -440,6 +440,11 @@ AC_MSG_CHECKING(for clock_t in time.h)
AC_EGREP_HEADER(clock_t, time.h, was_it_defined=yes, AC_DEFINE(clock_t, long))
AC_MSG_RESULT($was_it_defined)
# Two defines needed to enable largefile support on various platforms
# These may affect some typedefs
AC_DEFINE(_LARGEFILE_SOURCE)
AC_DEFINE(_FILE_OFFSET_BITS, 64)
# Add some code to confdefs.h so that the test for off_t works on SCO
cat >> confdefs.h <<\EOF
#if defined(SCO_DS)
@ -1276,47 +1281,6 @@ AC_CHECK_FUNCS(alarm chown clock confstr ctermid ctermid_r execv \
AC_CHECK_FUNCS(openpty,, AC_CHECK_LIB(util,openpty, [AC_DEFINE(HAVE_OPENPTY)] [LIBS="$LIBS -lutil"]))
AC_CHECK_FUNCS(forkpty,, AC_CHECK_LIB(util,forkpty, [AC_DEFINE(HAVE_FORKPTY)] [LIBS="$LIBS -lutil"]))
# Try defining symbols to enable large file support.
# The particular combination of symbols used here is known to work
# on Linux and Solaris [2.]7.
AC_MSG_CHECKING(for CFLAGS to enable large files)
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
AC_TRY_RUN([
#include <sys/types.h>
#include <stdio.h>
main() {
FILE *fp;
off_t seek = 0x80000000ul;
off_t tell = 0;
fp = fopen("conftestval", "wb");
if (fp == NULL) {
perror("conftestval");
exit(1);
}
if (fseeko(fp, seek, 0) < 0)
perror("fseeko");
else
tell = ftello(fp);
fclose(fp);
unlink("conftestval");
if (tell == seek) {
fprintf(stderr, "seek to 2**31 worked\n");
exit(0);
}
else {
exit(1);
fprintf(stderr, "seek to 2**31 didn't work\n");
}
}
],
AC_MSG_RESULT(yes)
AC_DEFINE(_LARGEFILE_SOURCE)
AC_DEFINE(_FILE_OFFSET_BITS,64),
AC_MSG_RESULT(no),
AC_MSG_RESULT(no (cross-compiling)))
CFLAGS="$OLD_CFLAGS"
# check for long file support functions
AC_CHECK_FUNCS(fseek64 fseeko fstatvfs ftell64 ftello statvfs)

4
pyconfig.h.in
View file

@ -136,9 +136,7 @@
/* Defined to enable large file support when an off_t is bigger than a long
and long long is available and at least as big as an off_t. You may need
to add some flags for configuration and compilation to enable this mode.
E.g, for Solaris 2.7:
CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" OPT="-O2 $CFLAGS" \
configure
(For Solaris and Linux, the necessary defines are already defined.)
*/
#undef HAVE_LARGEFILE_SUPPORT