diff options
author | Martin Pool <mbp@samba.org> | 2001-03-17 01:06:34 +0000 |
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committer | Martin Pool <mbp@samba.org> | 2001-03-17 01:06:34 +0000 |
commit | 3fa64fd0080caf4b44ac069f3b6172b68f274e6f (patch) | |
tree | c7d59211b99105732b5a6e8acc8cb0e2239dab9a | |
parent | b557c4c7eb79fe3ecd1107486a0fce132095f5f9 (diff) | |
download | rsync-3fa64fd0080caf4b44ac069f3b6172b68f274e6f.tar.gz |
Don't unconditionally define _LARGEFILE_SOURCE, but instead include
some autoconf-2.13 macros that make the appropriate settings. Thanks
to Albert Chin <china@thewrittenword.com> and Paul Eggert
<eggert@twinsun.com>.
-rw-r--r-- | aclocal.m4 | 75 | ||||
-rw-r--r-- | configure.in | 1 | ||||
-rw-r--r-- | rsync.h | 7 |
3 files changed, 76 insertions, 7 deletions
@@ -21,3 +21,78 @@ AC_DEFUN(AC_VALIDATE_CACHE_SYSTEM_TYPE, [ ac_cv_build_system_type="$build" ac_cv_target_system_type="$target" ]) + +#serial 12 + +dnl By default, many hosts won't let programs access large files; +dnl one must use special compiler options to get large-file access to work. +dnl For more details about this brain damage please see: +dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html + +dnl Written by Paul Eggert <eggert@twinsun.com>. + +dnl Internal subroutine of AC_SYS_LARGEFILE. +dnl AC_SYS_LARGEFILE_TEST_INCLUDES +AC_DEFUN(AC_SYS_LARGEFILE_TEST_INCLUDES, + [[#include <sys/types.h> + int a[(off_t) 9223372036854775807 == 9223372036854775807 ? 1 : -1]; + ]]) + +dnl Internal subroutine of AC_SYS_LARGEFILE. +dnl AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, CACHE-VAR, COMMENT, INCLUDES, FUNCTION-BODY) +AC_DEFUN(AC_SYS_LARGEFILE_MACRO_VALUE, + [AC_CACHE_CHECK([for $1 value needed for large files], $3, + [$3=no + AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES +$5 + , + [$6], + , + [AC_TRY_COMPILE([#define $1 $2] +AC_SYS_LARGEFILE_TEST_INCLUDES +$5 + , + [$6], + [$3=$2])])]) + if test "[$]$3" != no; then + AC_DEFINE_UNQUOTED([$1], [$]$3, [$4]) + fi]) + +AC_DEFUN(AC_SYS_LARGEFILE, + [AC_ARG_ENABLE(largefile, + [ --disable-largefile omit support for large files]) + if test "$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 "$GCC" != yes; then + # IRIX 6.2 and later do not support large files by default, + # so use the C compiler's -n32 option if that helps. + AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES, , , + [ac_save_CC="$CC" + CC="$CC -n32" + AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES, , + ac_cv_sys_largefile_CC=' -n32') + CC="$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 + ]) diff --git a/configure.in b/configure.in index c0b19e2c..18ff3d21 100644 --- a/configure.in +++ b/configure.in @@ -45,6 +45,7 @@ AC_SUBST(SHELL) AC_CHECK_PROG(HAVE_REMSH, remsh, 1, 0) AC_DEFINE_UNQUOTED(HAVE_REMSH, $HAVE_REMSH) +AC_SYS_LARGEFILE AC_C_BIGENDIAN AC_HEADER_DIRENT AC_HEADER_TIME @@ -79,13 +79,6 @@ enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3 }; #define RSYNC_RSH "rsh" #endif -/* This tries to turn on large file support on some Unix platforms, - * making off_t be a 64-bit type, and so on. - * - * http://www.rs6000.ibm.com/doc_link/en_US/a_doc_lib/aixprggd/genprogc/prg_lrg_files.htm - */ -#define _LARGE_FILES 1 - #include <sys/types.h> #ifdef HAVE_UNISTD_H |