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cf/largefile.m4: improve compatibility with autoconf 2.72

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as of autoconf 2.72 neither ac_cv_sys_large_files nor
ac_cv_sys_file_offset_bits are populated. 1b57b62 introduced a
workaround just for ac_cv_sys_file_offset_bits by checking if it's not
empty.

expand fix to cover ac_cv_sys_large_files as well and check
ac_cv_sys_largefile_opts which is populated in autoconf 2.72 [1]

1. https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=cf09f48841b66fe76f606dd6018bb3a93242a7c9
This commit is contained in:
Jan Palus
2025-01-16 18:34:28 +01:00
committed by Jeffrey Altman
parent de6776e66b
commit 7510cc5ba2
1 changed files with 11 additions and 5 deletions
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16
cf/largefile.m4
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@@ -7,10 +7,16 @@ AC_DEFUN([rk_SYS_LARGEFILE],[
AC_REQUIRE([AC_SYS_LARGEFILE])dnl
dnl need to set this on the command line, since it might otherwise break
dnl with generated code, such as lex
if test "$enable_largefile" != no -a "$ac_cv_sys_large_files" != no; then
CPPFLAGS="$CPPFLAGS -D_LARGE_FILES=$ac_cv_sys_large_files"
fi
if test "$enable_largefile" != no -a "$ac_cv_sys_file_offset_bits" != no && test -n "$ac_cv_sys_file_offset_bits"; then
CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits"
if test "$enable_largefile" != no; then
if test -n "$ac_cv_sys_large_files" && test "$ac_cv_sys_large_files" != no; then
CPPFLAGS="$CPPFLAGS -D_LARGE_FILES=$ac_cv_sys_large_files"
fi
if test -n "$ac_cv_sys_file_offset_bits" && test "$ac_cv_sys_file_offset_bits" != no; then
CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits"
fi
if test -n "$ac_cv_sys_largefile_opts"; then
AS_CASE([$ac_cv_sys_largefile_opts],[-D_FILE_OFFSET_BITS=*|-D_LARGE_FILES=*],
[CPPFLAGS="$CPPFLAGS $ac_cv_sys_largefile_opts"])
fi
fi
])