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https://github.com/libconfuse/libconfuse/commit/e967a307bf570306acd949513559e044b0da1f2d
From: Mike Frysinger <vapier@chromium.org>
Date: Tue, 10 Jan 2023 14:03:09 -0500
Subject: [PATCH] configure.ac: enable automatic LFS support
Automatically enable large filesystem support so we use the newer
interfaces when interacting with the filesystem. Without this,
code that tries to stat a file with 64-bit inodes can fail if the
stat structure is only 32-bit (which is common on x86 & arm). On
Linux, this can manifest with some filesystems more often than
others.
Practically speaking, since libconfuse doesn't do too much file
I/O, the overhead should be non-existent. Especially since the
C library (e.g. glibc) is already using the 64-bit syscall even
if the function call was 32-bit.
On systems that have 64-bit stat already (which is common on x86_64
and aarch64), there is no overhead as the code is exactly the same.
--- a/configure.ac
+++ b/configure.ac
@@ -31,6 +31,9 @@ AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION([0.19.6])
AM_GNU_GETTEXT_REQUIRE_VERSION([0.19.6])
+# Checks for OS settings.
+AC_SYS_LARGEFILE
+
# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([unistd.h string.h strings.h sys/stat.h windows.h])
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