qt55.qtbase: add patch to build with libressl 2.3

pkgs/development/libraries/qt-5/5.5/qtbase/libressl.patch

@@ -0,0 +1,36 @@
+From 81494e67eccba04fc3fe554d76a9ca6fe7f2250e Mon Sep 17 00:00:00 2001
+From: hasufell <hasufell@gentoo.org>
+Date: Sat, 10 Oct 2015 01:15:01 +0200
+Subject: [PATCH] Fix compilation with libressl
+
+By additionally checking for defined(SSL_CTRL_SET_CURVES), which
+is defined in openssl, but not in libressl.
+---
+ src/network/ssl/qsslcontext_openssl.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/qtbase/src/network/ssl/qsslcontext_openssl.cpp b/qtbase/src/network/ssl/qsslcontext_openssl.cpp
+index b88ab54..cfc4f6d 100644
+--- a/qtbase/src/network/ssl/qsslcontext_openssl.cpp
++++ b/qtbase/src/network/ssl/qsslcontext_openssl.cpp
+@@ -338,7 +338,7 @@ init_context:
+ 
+     const QVector<QSslEllipticCurve> qcurves = sslContext->sslConfiguration.ellipticCurves();
+     if (!qcurves.isEmpty()) {
+-#if OPENSSL_VERSION_NUMBER >= 0x10002000L && !defined(OPENSSL_NO_EC)
++#if OPENSSL_VERSION_NUMBER >= 0x10002000L && defined(SSL_CTRL_SET_CURVES) && !defined(OPENSSL_NO_EC)
+         // Set the curves to be used
+         if (q_SSLeay() >= 0x10002000L) {
+             // SSL_CTX_ctrl wants a non-const pointer as last argument,
+@@ -352,7 +352,7 @@ init_context:
+                 return sslContext;
+             }
+         } else
+-#endif // OPENSSL_VERSION_NUMBER >= 0x10002000L && !defined(OPENSSL_NO_EC)
++#endif // OPENSSL_VERSION_NUMBER >= 0x10002000L && defined(SSL_CTRL_SET_CURVES) && !defined(OPENSSL_NO_EC)
+         {
+             // specific curves requested, but not possible to set -> error
+             sslContext->errorStr = msgErrorSettingEllipticCurves(QSslSocket::tr("OpenSSL version too old, need at least v1.0.2"));
+-- 
+2.6.0
+

pkgs/development/libraries/qt-5/5.5/qtbase/series

@@ -6,3 +6,4 @@ dlopen-dbus.patch
 xdg-config-dirs.patch
 nix-profiles-library-paths.patch
 compose-search-path.patch
+libressl.patch