[FFmpeg-cvslog] configure: account for openssl3 license change

[Timo Rothenpieler]

ffmpeg | branch: release/4.4 | Timo Rothenpieler <timo at rothenpieler.org> | Tue Sep  7 19:35:31 2021 +0200| [a66ee3abd228fca77828a1a97f0b90fbaf4d8383] | committer: Timo Rothenpieler

configure: account for openssl3 license change

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a66ee3abd228fca77828a1a97f0b90fbaf4d8383
---

 configure | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index fb55e04ee7..d722016613 100755
--- a/configure
+++ b/configure
@@ -1735,7 +1735,6 @@ EXTERNAL_LIBRARY_GPL_LIST="
 EXTERNAL_LIBRARY_NONFREE_LIST="
     decklink
     libfdk_aac
-    openssl
     libtls
 "
 
@@ -1827,6 +1826,7 @@ EXTERNAL_LIBRARY_LIST="
     mediacodec
     openal
     opengl
+    openssl
     pocketsphinx
     vapoursynth
 "
@@ -6531,7 +6531,10 @@ enabled omx_rpi           && { test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoR
                                die "ERROR: OpenMAX IL headers from raspberrypi/firmware not found"; } &&
                              enable omx
 enabled omx               && require_headers OMX_Core.h
-enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
+enabled openssl           && { { check_pkg_config openssl "openssl >= 3.0.0" openssl/ssl.h OPENSSL_init_ssl &&
+                                 { enabled gplv3 || ! enabled gpl || enabled nonfree || die "ERROR: OpenSSL >=3.0.0 requires --enable-version3"; }; } ||
+                               { enabled gpl && ! enabled nonfree && die "ERROR: OpenSSL <3.0.0 is incompatible with the gpl"; } ||
+                               check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
                                check_lib openssl openssl/ssl.h OPENSSL_init_ssl -lssl -lcrypto ||
                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||