From fe32a79d354dfc7f341dbfdd6b8f0d408bd76e5b Mon Sep 17 00:00:00 2001
From: fanquake <fanquake@gmail.com>
Date: Thu, 2 Dec 2021 11:44:13 +0800
Subject: [PATCH] build: pass win32-dll to LT_INIT

This is the recommended way to support building PE DLLs with modern
mingw toolchains and libtool.

> This option should be used if the package has been ported to build clean
> dlls on win32 platforms.
> If this macro is not used, libtool will assume that the package libraries
> are not dll clean and will build only static libraries on win32 hosts.

See:
https://www.gnu.org/software/libtool/manual/libtool.html#LT_005fINIT
https://www.gnu.org/software/gnulib/manual/html_node/Libtool-and-Windows.html
https://autotools.io/libtool/windows.html
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index c3c213a01c579..01fbbe634176e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,7 +8,7 @@ AH_TOP([#define LIBSECP256K1_CONFIG_H])
 AH_BOTTOM([#endif /*LIBSECP256K1_CONFIG_H*/])
 AM_INIT_AUTOMAKE([foreign subdir-objects])
 
-LT_INIT
+LT_INIT([win32-dll])
 
 # Make the compilation flags quiet unless V=1 is used.
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])