mirror of
git://git.sv.gnu.org/autoconf
synced 2025-02-17 14:01:27 +08:00
Import AC_SYS_LARGEFILE from largefile.m4 serial 12.
* acspecific.m4 (AC_SYS_LARGEFILE, _AC_SYS_LARGEFILE_MACRO_VALUE, _AC_SYS_LARGEFILE_SOURCE): New. * doc/autoconf.texi (System Services): Document AC_SYS_LARGEFILE.
This commit is contained in:
Akim Demaille
parent
a003cd1963
commit
3a6a9bb4f3
@ -1,3 +1,11 @@
|
||||
2000-06-08 Paul Eggert <eggert@twinsun.com>
|
||||
|
||||
Import AC_SYS_LARGEFILE from largefile.m4 serial 12.
|
||||
|
||||
* acspecific.m4 (AC_SYS_LARGEFILE, _AC_SYS_LARGEFILE_MACRO_VALUE,
|
||||
_AC_SYS_LARGEFILE_SOURCE): New.
|
||||
* doc/autoconf.texi (System Services): Document AC_SYS_LARGEFILE.
|
||||
|
||||
2000-06-08 Steven G. Johnson <stevenj@alum.mit.edu>
|
||||
|
||||
* aclang.m4 (AC_F77_LIBRARY_LDFLAGS): Don't override FLIBS if
|
||||
|
||||
8
NEWS
8
NEWS
@ -134,6 +134,9 @@ test cases in this new frame work.
|
||||
- AC_CHECK_DECL, AC_CHECK_DECLS
|
||||
To check whether a symbol is declared.
|
||||
|
||||
- AC_CHECK_SIZEOF
|
||||
No longer needs a cross-compilation size.
|
||||
|
||||
- AC_CHECK_TYPE
|
||||
The test it performs is much more robust than previously, and makes
|
||||
it possible to test builtin types in addition to typedefs.
|
||||
@ -150,7 +153,6 @@ test cases in this new frame work.
|
||||
Check for given members in aggregates (e.g., pw_gecos in struct
|
||||
passwd).
|
||||
|
||||
|
||||
- AC_PROG_CC_STDC
|
||||
Checks if the compiler supports ISO C, included when needs special
|
||||
options.
|
||||
@ -174,8 +176,8 @@ test cases in this new frame work.
|
||||
- AC_PROG_LEX
|
||||
Now integrates `AC_DECL_YYTEXT' which is obsoleted.
|
||||
|
||||
- AC_CHECK_SIZEOF
|
||||
No longer needs a cross-compilation size.
|
||||
- AC_SYS_LARGEFILE
|
||||
Arrange for large-file support.
|
||||
|
||||
** C++ compatibility
|
||||
Every macro has been revisited in order to support at best CC=c++.
|
||||
|
||||
@ -2090,10 +2090,93 @@ rm -f conftest])
|
||||
interpval=$ac_cv_sys_interpreter
|
||||
])
|
||||
|
||||
|
||||
AC_DEFUNCT([AC_HAVE_POUNDBANG], [;use AC_SYS_INTERPRETER, taking no arguments])
|
||||
AC_DEFUNCT([AC_ARG_ARRAY], [; don't do unportable things with arguments])
|
||||
|
||||
|
||||
# _AC_SYS_LARGEFILE_SOURCE(PROLOGUE, BODY)
|
||||
# ----------------------------------------
|
||||
define([_AC_SYS_LARGEFILE_SOURCE],
|
||||
[AC_LANG_PROGRAM(
|
||||
[$1
|
||||
@%:@include <sys/types.h>
|
||||
int a[[(off_t) 9223372036854775807 == 9223372036854775807 ? 1 : -1]];],
|
||||
[$2])])
|
||||
|
||||
|
||||
# _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE,
|
||||
# CACHE-VAR,
|
||||
# DESCRIPTION,
|
||||
# [INCLUDES], [FUNCTION-BODY])
|
||||
# ----------------------------------------------------------
|
||||
define([_AC_SYS_LARGEFILE_MACRO_VALUE],
|
||||
[AC_CACHE_CHECK([for $1 value needed for large files], [$3],
|
||||
[while :; do
|
||||
AC_COMPILE_IFELSE([_AC_SYS_LARGEFILE_SOURCE([$5], [$6])],
|
||||
[break])
|
||||
AC_COMPILE_IFELSE([_AC_SYS_LARGEFILE_SOURCE([@%:@define $1 $2
|
||||
$5], [$6])],
|
||||
[$3=$2; break])
|
||||
$3=no
|
||||
break
|
||||
done])
|
||||
if test "$$3" != no; then
|
||||
AC_DEFINE_UNQUOTED([$1], [$$3], [$4])
|
||||
fi[]dnl
|
||||
])# _AC_SYS_LARGEFILE_MACRO_VALUE
|
||||
|
||||
|
||||
# AC_SYS_LARGEFILE
|
||||
# ----------------
|
||||
# By default, many hosts won't let programs access large files;
|
||||
# one must use special compiler options to get large-file access to work.
|
||||
# For more details about this brain damage please see:
|
||||
# http://www.sas.com/standards/large.file/x_open.20Mar96.html
|
||||
AC_DEFUN([AC_SYS_LARGEFILE],
|
||||
[AC_ARG_ENABLE(largefile,
|
||||
[ --disable-largefile omit support for large files])
|
||||
if test "$enable_largefile" != no; then
|
||||
|
||||
AC_CACHE_CHECK([for special C compiler options needed for large files],
|
||||
ac_cv_sys_largefile_CC,
|
||||
[ac_cv_sys_largefile_CC=no
|
||||
if test "$GCC" != yes; then
|
||||
ac_save_CC=${CC-cc}
|
||||
while :; do
|
||||
# IRIX 6.2 and later do not support large files by default,
|
||||
# so use the C compiler's -n32 option if that helps.
|
||||
AC_COMPILE_IFELSE([_AC_SYS_LARGEFILE_SOURCE()],
|
||||
[break])
|
||||
CC="$CC -n32"
|
||||
AC_COMPILE_IFELSE([_AC_SYS_LARGEFILE_SOURCE()],
|
||||
[ac_cv_sys_largefile_CC=' -n32'; break])
|
||||
break
|
||||
done
|
||||
CC=$ac_save_CC
|
||||
fi])
|
||||
if test "$ac_cv_sys_largefile_CC" != no; then
|
||||
CC=$CC$ac_cv_sys_largefile_CC
|
||||
fi
|
||||
|
||||
_AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64,
|
||||
ac_cv_sys_file_offset_bits,
|
||||
[Number of bits in a file offset, on hosts where this is settable.])
|
||||
_AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, 1,
|
||||
ac_cv_sys_largefile_source,
|
||||
[Define to make ftello visible on some hosts (e.g. HP-UX 10.20).],
|
||||
[@%:@include <stdio.h>], [return !ftello;])
|
||||
_AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1,
|
||||
ac_cv_sys_large_files,
|
||||
[Define for large files, on AIX-style hosts.])
|
||||
_AC_SYS_LARGEFILE_MACRO_VALUE(_XOPEN_SOURCE, 500,
|
||||
ac_cv_sys_xopen_source,
|
||||
[Define to make ftello visible on some hosts (e.g. glibc 2.1.3).],
|
||||
[@%:@include <stdio.h>], [return !ftello;])
|
||||
fi
|
||||
])# AC_SYS_LARGEFILE
|
||||
|
||||
|
||||
# AC_SYS_LONG_FILE_NAMES
|
||||
# ----------------------
|
||||
# Security: use a temporary directory as the most portable way of
|
||||
|
||||
@ -4149,6 +4149,31 @@ the shell variable @code{interpval}; it will be set to @samp{yes}
|
||||
if the system supports @samp{#!}, @samp{no} if not.
|
||||
@end defmac
|
||||
|
||||
@defmac AC_SYS_LARGEFILE
|
||||
@maindex SYS_LARGEFILE
|
||||
@cvindex _FILE_OFFSET_BITS
|
||||
@cvindex _LARGEFILE_SOURCE
|
||||
@cvindex _LARGE_FILES
|
||||
@cvindex _XOPEN_SOURCE
|
||||
@ovindex CC
|
||||
Arrange for
|
||||
@uref{http://www.sas.com/standards/large.file/x_open.20Mar96.html,
|
||||
large-file support}. On some hosts, one must use special compiler
|
||||
options to build programs that can access large files. Append any such
|
||||
options to the output variable @code{CC}. Define
|
||||
@code{_FILE_OFFSET_BITS}, @code{_LARGEFILE_SOURCE}, @code{_LARGE_FILES},
|
||||
and @code{_XOPEN_SOURCE} if necessary.
|
||||
|
||||
The user can disable large-file support by configuring with the
|
||||
@option{--disable-largefile} option.
|
||||
|
||||
If you use this macro, check that your program works even when
|
||||
@code{off_t} is longer than @code{long}, since this is common when
|
||||
large-file support is enabled. For example, it is not correct to print
|
||||
an arbitrary @code{off_t} value @code{X} with @code{printf ("%ld",
|
||||
(long) X)}.
|
||||
@end defmac
|
||||
|
||||
@defmac AC_SYS_LONG_FILE_NAMES
|
||||
@maindex SYS_LONG_FILE_NAMES
|
||||
@cvindex HAVE_LONG_FILE_NAMES
|
||||
|
||||
@ -2090,10 +2090,93 @@ rm -f conftest])
|
||||
interpval=$ac_cv_sys_interpreter
|
||||
])
|
||||
|
||||
|
||||
AC_DEFUNCT([AC_HAVE_POUNDBANG], [;use AC_SYS_INTERPRETER, taking no arguments])
|
||||
AC_DEFUNCT([AC_ARG_ARRAY], [; don't do unportable things with arguments])
|
||||
|
||||
|
||||
# _AC_SYS_LARGEFILE_SOURCE(PROLOGUE, BODY)
|
||||
# ----------------------------------------
|
||||
define([_AC_SYS_LARGEFILE_SOURCE],
|
||||
[AC_LANG_PROGRAM(
|
||||
[$1
|
||||
@%:@include <sys/types.h>
|
||||
int a[[(off_t) 9223372036854775807 == 9223372036854775807 ? 1 : -1]];],
|
||||
[$2])])
|
||||
|
||||
|
||||
# _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE,
|
||||
# CACHE-VAR,
|
||||
# DESCRIPTION,
|
||||
# [INCLUDES], [FUNCTION-BODY])
|
||||
# ----------------------------------------------------------
|
||||
define([_AC_SYS_LARGEFILE_MACRO_VALUE],
|
||||
[AC_CACHE_CHECK([for $1 value needed for large files], [$3],
|
||||
[while :; do
|
||||
AC_COMPILE_IFELSE([_AC_SYS_LARGEFILE_SOURCE([$5], [$6])],
|
||||
[break])
|
||||
AC_COMPILE_IFELSE([_AC_SYS_LARGEFILE_SOURCE([@%:@define $1 $2
|
||||
$5], [$6])],
|
||||
[$3=$2; break])
|
||||
$3=no
|
||||
break
|
||||
done])
|
||||
if test "$$3" != no; then
|
||||
AC_DEFINE_UNQUOTED([$1], [$$3], [$4])
|
||||
fi[]dnl
|
||||
])# _AC_SYS_LARGEFILE_MACRO_VALUE
|
||||
|
||||
|
||||
# AC_SYS_LARGEFILE
|
||||
# ----------------
|
||||
# By default, many hosts won't let programs access large files;
|
||||
# one must use special compiler options to get large-file access to work.
|
||||
# For more details about this brain damage please see:
|
||||
# http://www.sas.com/standards/large.file/x_open.20Mar96.html
|
||||
AC_DEFUN([AC_SYS_LARGEFILE],
|
||||
[AC_ARG_ENABLE(largefile,
|
||||
[ --disable-largefile omit support for large files])
|
||||
if test "$enable_largefile" != no; then
|
||||
|
||||
AC_CACHE_CHECK([for special C compiler options needed for large files],
|
||||
ac_cv_sys_largefile_CC,
|
||||
[ac_cv_sys_largefile_CC=no
|
||||
if test "$GCC" != yes; then
|
||||
ac_save_CC=${CC-cc}
|
||||
while :; do
|
||||
# IRIX 6.2 and later do not support large files by default,
|
||||
# so use the C compiler's -n32 option if that helps.
|
||||
AC_COMPILE_IFELSE([_AC_SYS_LARGEFILE_SOURCE()],
|
||||
[break])
|
||||
CC="$CC -n32"
|
||||
AC_COMPILE_IFELSE([_AC_SYS_LARGEFILE_SOURCE()],
|
||||
[ac_cv_sys_largefile_CC=' -n32'; break])
|
||||
break
|
||||
done
|
||||
CC=$ac_save_CC
|
||||
fi])
|
||||
if test "$ac_cv_sys_largefile_CC" != no; then
|
||||
CC=$CC$ac_cv_sys_largefile_CC
|
||||
fi
|
||||
|
||||
_AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64,
|
||||
ac_cv_sys_file_offset_bits,
|
||||
[Number of bits in a file offset, on hosts where this is settable.])
|
||||
_AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, 1,
|
||||
ac_cv_sys_largefile_source,
|
||||
[Define to make ftello visible on some hosts (e.g. HP-UX 10.20).],
|
||||
[@%:@include <stdio.h>], [return !ftello;])
|
||||
_AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1,
|
||||
ac_cv_sys_large_files,
|
||||
[Define for large files, on AIX-style hosts.])
|
||||
_AC_SYS_LARGEFILE_MACRO_VALUE(_XOPEN_SOURCE, 500,
|
||||
ac_cv_sys_xopen_source,
|
||||
[Define to make ftello visible on some hosts (e.g. glibc 2.1.3).],
|
||||
[@%:@include <stdio.h>], [return !ftello;])
|
||||
fi
|
||||
])# AC_SYS_LARGEFILE
|
||||
|
||||
|
||||
# AC_SYS_LONG_FILE_NAMES
|
||||
# ----------------------
|
||||
# Security: use a temporary directory as the most portable way of
|
||||
|
||||
Loading…
Reference in New Issue
Block a user