From f51423bdaf0008d46b6af082bcfd7a22a87375f0 Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Fri, 24 Jun 2022 14:40:42 +1000
Subject: request 1.1x API compatibility for OpenSSL >=3.x

idea/patch from Pedro Martelletto via GHPR#322; ok dtucker@
---
 configure.ac | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 62c098d6..116b9750 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2796,8 +2796,13 @@ if test "x$openssl" = "xyes" ; then
 				;;
 			101*)   ;; # 1.1.x
 			200*)   ;; # LibreSSL
-			300*)   ;; # OpenSSL 3
-			301*)   ;; # OpenSSL development branch.
+			300*)
+				# OpenSSL 3; we use the 1.1x API
+				CPPFLAGS="$CPPFLAGS -DOPENSSL_API_COMPAT=0x10100000L"
+				;;
+			301*)
+				# OpenSSL development branch; request 1.1x API
+				CPPFLAGS="$CPPFLAGS -DOPENSSL_API_COMPAT=0x10100000L"
 		        *)
 				AC_MSG_ERROR([Unknown/unsupported OpenSSL version ("$ssl_library_ver")])
 		                ;;
-- 
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