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commit daa88b765111b14047c97256bd2a9a2daabe123b
parent 2924b3d52ac2ab89e3bc517a1f664ec056a45edd
Author: Christoph Biedl <>
Date:   Mon,  5 Dec 2016 20:26:00 +0100

Fix building ngIRCd with OpenSSL 1.1

At the moment, ngIRCd fails to build against OpenSSL 1.1 since the
configure check probes for the SSL_library_init symbol which was
removed, but probing for a different function availabe in both versions
solves that problem: SSL_new().

And as SSL_library_init is no longer needed, the patch boils down to
probing SSL_new to assert libssl is available, and disabling the
SSL_library_init invokation from OpenSSL 1.1 on, see also another
application[1] (NSCA-ng) that did pretty much the same.

Patch was compile-tested on both Debian jessie (OpenSSL 1.0.2) and
stretch (OpenSSL 1.1).

[1] <>

(Patch by Christoph, commit message cherry-picked from the email thread
on the mailing list by Alex. Thanks!)

Diffstat: | 4++--
Msrc/ngircd/conn-ssl.c | 2++
2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/ b/ @@ -418,8 +418,8 @@ AC_ARG_WITH(openssl, LDFLAGS="-L$withval/lib $LDFLAGS" fi AC_CHECK_LIB(crypto, BIO_s_mem) - AC_CHECK_LIB(ssl, SSL_library_init) - AC_CHECK_FUNCS(SSL_library_init, x_ssl_openssl=yes, + AC_CHECK_LIB(ssl, SSL_new) + AC_CHECK_FUNCS(SSL_new, x_ssl_openssl=yes, AC_MSG_ERROR([Can't enable openssl]) ) fi diff --git a/src/ngircd/conn-ssl.c b/src/ngircd/conn-ssl.c @@ -283,10 +283,12 @@ ConnSSL_InitLibrary( void ) #ifdef HAVE_LIBSSL SSL_CTX *newctx; +#if OPENSSL_API_COMPAT < 0x10100000L if (!ssl_ctx) { SSL_library_init(); SSL_load_error_strings(); } +#endif if (!RAND_status()) { Log(LOG_ERR, "OpenSSL PRNG not seeded: /dev/urandom missing?");