From: Martti Rannanjärvi <martti.rannanjarvi@dovecot.fi>
Date: Wed, 15 Nov 2017 04:13:30 +0000 (+0200)
Subject: m4: Refuse to build with OpenSSL version < 1.0.1
X-Git-Tag: 2.3.0.rc1~466
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6f4c61d8ce9cc128aaf7bcefd194671ff7eb0666;p=thirdparty%2Fdovecot%2Fcore.git

m4: Refuse to build with OpenSSL version < 1.0.1
---

diff --git a/m4/ssl.m4 b/m4/ssl.m4
index 35b77ec44e..ef8a311327 100644
--- a/m4/ssl.m4
+++ b/m4/ssl.m4
@@ -28,7 +28,19 @@ AC_DEFUN([DOVECOT_SSL], [
     if test "$have_openssl" = "yes"; then
       AC_DEFINE(HAVE_OPENSSL,, [Build with OpenSSL support])
       have_ssl="yes (OpenSSL)"
-  
+
+      AC_MSG_CHECKING([if OpenSSL version is 1.0.1 or newer])
+      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+	#include <openssl/opensslv.h>
+	#if OPENSSL_VERSION_NUMBER < 0x10001000L
+	#error "fail-compile"
+	#endif]], [[ return 0; ]])],
+	[ssl_version_ge_101=true], [ssl_version_ge_101=false])
+      AC_MSG_RESULT([$ssl_version_ge_101])
+      if test $ssl_version_ge_101 = false; then
+        AC_MSG_ERROR([Found deprecated OpenSSL version, use 1.0.1 or newer])
+      fi
+
       AC_MSG_CHECKING([if OpenSSL version is 1.0.2 or better])
 
       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[