- for ac_flag in $ac_cv_sys_largefile_CFLAGS no; do
- case "$ac_flag" in
- no) ;;
- -D_FILE_OFFSET_BITS=*) ;;
- -D_LARGEFILE_SOURCE | -D_LARGEFILE_SOURCE=*) ;;
- -D_LARGE_FILES | -D_LARGE_FILES=*) ;;
- -D?* | -I?*)
- AC_SYS_LARGEFILE_SPACE_APPEND(CPPFLAGS, "$ac_flag") ;;
- *)
- AC_SYS_LARGEFILE_SPACE_APPEND(CFLAGS, "$ac_flag") ;;
- esac
- done
- AC_SYS_LARGEFILE_SPACE_APPEND(LDFLAGS, "$ac_cv_sys_largefile_LDFLAGS")
- AC_SYS_LARGEFILE_SPACE_APPEND(LIBS, "$ac_cv_sys_largefile_LIBS")
- AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS,
- ac_cv_sys_file_offset_bits,
- [Number of bits in a file offset, on hosts where this is settable.],
- [case "$host_os" in
- # HP-UX 10.20 and later
-[ hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*)]
- ac_cv_sys_file_offset_bits=64 ;;
- esac])
- AC_SYS_LARGEFILE_MACRO_VALUE(_GNU_SOURCE,
- ac_cv_sys_gnu_source,
- [Define to make ftello visible on some hosts (e.g. glibc 2.1.3).],
- [AC_TRY_COMPILE([#include <stdio.h>], [return !ftello;], ,
- [AC_TRY_COMPILE([#define _GNU_SOURCE 1
-#include <stdio.h>],
- [return !ftello;],
- ac_cv_sys_gnu_source=1)])])
- AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE,
- ac_cv_sys_largefile_source,
- [Define to make ftello visible on some hosts (e.g. HP-UX 10.20).],
- [AC_TRY_COMPILE([#include <stdio.h>], [return !ftello;], ,
- [AC_TRY_COMPILE([#define _LARGEFILE_SOURCE 1
-#include <stdio.h>], [return !ftello;],
- ac_cv_sys_largefile_source=1)])])
- AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES,
- ac_cv_sys_large_files,
- [Define for large files, on AIX-style hosts.],
- [case "$host_os" in
- # AIX 4.2 and later
-[ aix4.[2-9]* | aix4.1[0-9]* | aix[5-9].* | aix[1-9][0-9]*)]
- ac_cv_sys_large_files=1 ;;
- esac])
- fi
- ])
+# 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.unix-systems.org/version2/whatsnew/lfs20mar.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=$CC
+ while :; do
+ # IRIX 6.2 and later do not support large files by default,
+ # so use the C compiler's -n32 option if that helps.
+ AC_LANG_CONFTEST([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_INCLUDES])])
+ AC_COMPILE_IFELSE([], [break])
+ CC="$CC -n32"
+ AC_COMPILE_IFELSE([], [ac_cv_sys_largefile_CC=' -n32'; break])
+ break
+ done
+ CC=$ac_save_CC
+ rm -f conftest.$ac_ext
+ 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_TEST_INCLUDES])
+ if test $ac_cv_sys_file_offset_bits = unknown; then
+ _AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1,
+ ac_cv_sys_large_files,
+ [Define for large files, on AIX-style hosts.],
+ [_AC_SYS_LARGEFILE_TEST_INCLUDES])
+ fi
+
+ AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],
+[/* Enable large inode numbers on Mac OS X. */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif])
+fi
+])# AC_SYS_LARGEFILE
+
+])# m4_version_prereq 2.69