| From fef3b16dba2c5f6ad88951b80cdfbedd423e80a0 Mon Sep 17 00:00:00 2001 |
| From: Khem Raj <raj.khem@gmail.com> |
| Date: Wed, 7 Dec 2022 20:16:52 -0800 |
| Subject: [PATCH v3 1/3] configure: use AC_SYS_LARGEFILE |
| |
| The autoconf macro AC_SYS_LARGEFILE defines _FILE_OFFSET_BITS=64 |
| where necessary to ensure that off_t and all interfaces using off_t |
| are 64bit, even on 32bit systems. |
| |
| Pass -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=66 via CFLAGS |
| |
| Upstream-Status: Submitted [https://lore.kernel.org/linux-erofs/20221215064758.93821-1-raj.khem@gmail.com/T/#t] |
| Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| --- |
| configure.ac | 5 +++++ |
| 1 file changed, 5 insertions(+) |
| |
| diff --git a/configure.ac b/configure.ac |
| index a736ff0..e8bb003 100644 |
| --- a/configure.ac |
| +++ b/configure.ac |
| @@ -13,6 +13,8 @@ AC_CONFIG_MACRO_DIR([m4]) |
| AC_CONFIG_AUX_DIR(config) |
| AM_INIT_AUTOMAKE([foreign -Wall]) |
| |
| +AC_SYS_LARGEFILE |
| + |
| # Checks for programs. |
| AM_PROG_AR |
| AC_PROG_CC |
| @@ -319,6 +321,9 @@ if test "x$enable_lzma" = "xyes"; then |
| CPPFLAGS="${saved_CPPFLAGS}" |
| fi |
| |
| +# Enable 64-bit off_t |
| +CFLAGS+=" -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" |
| + |
| # Set up needed symbols, conditionals and compiler/linker flags |
| AM_CONDITIONAL([ENABLE_LZ4], [test "x${have_lz4}" = "xyes"]) |
| AM_CONDITIONAL([ENABLE_LZ4HC], [test "x${have_lz4hc}" = "xyes"]) |
| -- |
| 2.39.0 |
| |