| Andrew Geissler | 517393d | 2023-01-13 08:55:19 -0600 | [diff] [blame^] | 1 | From fef3b16dba2c5f6ad88951b80cdfbedd423e80a0 Mon Sep 17 00:00:00 2001 |
| 2 | From: Khem Raj <raj.khem@gmail.com> |
| 3 | Date: Wed, 7 Dec 2022 20:16:52 -0800 |
| 4 | Subject: [PATCH v3 1/3] configure: use AC_SYS_LARGEFILE |
| 5 | |
| 6 | The autoconf macro AC_SYS_LARGEFILE defines _FILE_OFFSET_BITS=64 |
| 7 | where necessary to ensure that off_t and all interfaces using off_t |
| 8 | are 64bit, even on 32bit systems. |
| 9 | |
| 10 | Pass -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=66 via CFLAGS |
| 11 | |
| 12 | Upstream-Status: Submitted [https://lore.kernel.org/linux-erofs/20221215064758.93821-1-raj.khem@gmail.com/T/#t] |
| 13 | Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| 14 | --- |
| 15 | configure.ac | 5 +++++ |
| 16 | 1 file changed, 5 insertions(+) |
| 17 | |
| 18 | diff --git a/configure.ac b/configure.ac |
| 19 | index a736ff0..e8bb003 100644 |
| 20 | --- a/configure.ac |
| 21 | +++ b/configure.ac |
| 22 | @@ -13,6 +13,8 @@ AC_CONFIG_MACRO_DIR([m4]) |
| 23 | AC_CONFIG_AUX_DIR(config) |
| 24 | AM_INIT_AUTOMAKE([foreign -Wall]) |
| 25 | |
| 26 | +AC_SYS_LARGEFILE |
| 27 | + |
| 28 | # Checks for programs. |
| 29 | AM_PROG_AR |
| 30 | AC_PROG_CC |
| 31 | @@ -319,6 +321,9 @@ if test "x$enable_lzma" = "xyes"; then |
| 32 | CPPFLAGS="${saved_CPPFLAGS}" |
| 33 | fi |
| 34 | |
| 35 | +# Enable 64-bit off_t |
| 36 | +CFLAGS+=" -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" |
| 37 | + |
| 38 | # Set up needed symbols, conditionals and compiler/linker flags |
| 39 | AM_CONDITIONAL([ENABLE_LZ4], [test "x${have_lz4}" = "xyes"]) |
| 40 | AM_CONDITIONAL([ENABLE_LZ4HC], [test "x${have_lz4hc}" = "xyes"]) |
| 41 | -- |
| 42 | 2.39.0 |
| 43 | |