From c4ec9b26b76ebaa442ed3ae3fa10442869e66038 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=90=D0=BB=D0=B5=D0=BA=D1=81=D0=B5=D0=B9?=
 <alexey.pawlow@gmail.com>
Date: Thu, 17 Jun 2021 18:51:16 +0530
Subject: [PATCH 007/N] MINGW configure largefile support for windows builds
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Co-authored-by: Алексей <alexey.pawlow@gmail.com>
Co-authored-by: Christoph Reiter <reiter.christoph@gmail.com>
---
 configure.ac | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/configure.ac b/configure.ac
index 6058002..4c964ae 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2487,8 +2487,20 @@ AC_CHECK_SIZEOF(off_t, [], [
 ])
 
 AC_MSG_CHECKING(whether to enable large file support)
+have_largefile_support=no
 if test "$ac_cv_sizeof_off_t" -gt "$ac_cv_sizeof_long" -a \
 	"$ac_cv_sizeof_long_long" -ge "$ac_cv_sizeof_off_t"; then
+  have_largefile_support=yes
+else
+  case $host in
+  *-*-mingw*)
+    dnl Activate on windows platforms (32&64-bit) where off_t(4) < fpos_t(8)
+    have_largefile_support=yes
+    ;;
+  esac
+fi
+
+if test $have_largefile_support = yes ; then
   AC_DEFINE(HAVE_LARGEFILE_SUPPORT, 1,
   [Defined to enable large file support when an off_t is bigger than a long
    and long long is at least as big as an off_t. You may need
-- 
2.32.0