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From: Jack Lau via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: Jack Lau <code@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH] configure: add detailed headers check for openssl (PR #20937)
Date: Mon, 17 Nov 2025 05:45:29 -0000
Message-ID: <176335833139.25.1152529926865731495@2cb04c0e5124> (raw)

PR #20937 opened by Jack Lau (JackLau)
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20937
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20937.patch

Fix #20571

Avoid build errors with openssl forks (like libressl)
that lack some APIs.

Fail early during configure instead of hitting compile
errors.

Signed-off-by: Jack Lau <jacklau1222gm@gmail.com>


>From 2c2135fd2e88cd9568f8c2568601d23cd9a5aef6 Mon Sep 17 00:00:00 2001
From: Jack Lau <jacklau1222gm@gmail.com>
Date: Mon, 17 Nov 2025 13:32:05 +0800
Subject: [PATCH] configure: add detailed headers check for openssl

Fix #20571

Avoid build errors with openssl forks (like libressl)
that lack some APIs.

Fail early during configure instead of hitting compile
errors.

Signed-off-by: Jack Lau <jacklau1222gm@gmail.com>
---
 configure | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 659b428cfc..718b5c5b30 100755
--- a/configure
+++ b/configure
@@ -7355,7 +7355,12 @@ enabled openssl           && { { check_pkg_config openssl "openssl >= 3.0.0" ope
                                check_pkg_config openssl "openssl >= 1.1.1" openssl/ssl.h OPENSSL_init_ssl ||
                                check_lib openssl openssl/ssl.h OPENSSL_init_ssl -lssl -lcrypto ||
                                check_lib openssl openssl/ssl.h OPENSSL_init_ssl -lssl -lcrypto -lws2_32 -lgdi32 ||
-                               die "ERROR: openssl (>= 1.1.1) not found"; }
+                               die "ERROR: openssl (>= 1.1.1) not found"; } &&
+                            { check_func_headers "openssl/bio.h" BIO_read_ex &&
+                              check_func_headers "openssl/ssl.h" DTLS_set_link_mtu &&
+                              check_func_headers "openssl/ssl.h" DTLS_get_data_mtu &&
+                              check_func_headers "openssl/ssl.h" TLS_ST_OK ||
+                              die "ERROR: openssl (>= 1.1.1 with required API) not found" ;}
 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
-- 
2.49.1

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