# If you change this macro you may also need to change
# _AC_SYS_YEAR2038_OPTIONS.
AC_DEFUN([_AC_SYS_YEAR2038_PROBE],
-[AC_CACHE_CHECK([for $CC option for timestamps after 2038],
+[AC_CACHE_CHECK([for $CPPFLAGS option for timestamps after 2038],
[ac_cv_sys_year2038_opts],
[ac_save_CPPFLAGS="$CPPFLAGS"
ac_opt_found=no
["none needed"] dnl Most current systems
["-D_FILE_OFFSET_BITS=64"] dnl X/Open LFS spec
["-D_LARGE_FILES=1"] dnl 32-bit AIX 4.2.1+, 32-bit z/OS
- ["-n32"] dnl 32-bit IRIX 6, SGI cc (obsolete)
))
# _AC_SYS_LARGEFILE_PROBE
# If you change this macro you may also need to change
# _AC_SYS_LARGEFILE_OPTIONS.
AC_DEFUN([_AC_SYS_LARGEFILE_PROBE],
-[AC_CACHE_CHECK([for $CC option to enable large file support],
+[AC_CACHE_CHECK([for $CPPFLAGS option for large files],
[ac_cv_sys_largefile_opts],
- [ac_save_CC="$CC"
+ [ac_save_CPPFLAGS=$CPPFLAGS
ac_opt_found=no
for ac_opt in _AC_SYS_LARGEFILE_OPTIONS; do
AS_IF([test x"$ac_opt" != x"none needed"],
- [CC="$ac_save_CC $ac_opt"])
+ [CPPFLAGS="$ac_save_CPPFLAGS $ac_opt"])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_CODE])],
[AS_IF([test x"$ac_opt" = x"none needed"],
[# GNU/Linux s390x and alpha need _FILE_OFFSET_BITS=64 for wide ino_t.
- CC="$CC -DFTYPE=ino_t"
+ CPPFLAGS="$CPPFLAGS -DFTYPE=ino_t"
AC_COMPILE_IFELSE([], [],
- [CC="$CC -D_FILE_OFFSET_BITS=64"
+ [CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=64"
AC_COMPILE_IFELSE([], [ac_opt='-D_FILE_OFFSET_BITS=64'])])])
ac_cv_sys_largefile_opts=$ac_opt
ac_opt_found=yes])
test $ac_opt_found = no || break
done
- CC="$ac_save_CC"
+ CPPFLAGS=$ac_save_CPPFLAGS
dnl Gnulib implements large file support for native Windows, based on the
dnl variables WINDOWS_64_BIT_OFF_T, WINDOWS_64_BIT_ST_SIZE.
m4_ifdef([gl_LARGEFILE], [
[AC_DEFINE([_LARGE_FILES], [1],
[Define to 1 on platforms where this makes off_t a 64-bit type.])],
- ["-n32"],
- [CC="$CC -n32"],
-
[AC_MSG_ERROR(
[internal error: bad value for \$ac_cv_sys_largefile_opts])])