Support dynamic loading of SDL libraries

This is mainly to address old issue when one need to have SDL library installed
in order to use our official builds. Some hip distros already installs SDL,
but it's not quite the same across all the variety of the distros.

We also now switching to SDL-2.0, most of the distros have it in repositories
already, so it shouldn't be huge deal to install it if needed.

Reviewers: campbellbarton

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D878

1 files changed, 40 insertions, 0 deletions

diff --git a/extern/sdlew/CMakeLists.txt b/extern/sdlew/CMakeLists.txt
new file mode 100644
index 00000000000..8571ad9251d
--- /dev/null
+++ b/extern/sdlew/CMakeLists.txt
@@ -0,0 +1,40 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# The Original Code is Copyright (C) 2006, Blender Foundation
+# All rights reserved.
+#
+# The Original Code is: all of this file.
+#
+# Contributor(s): Jacques Beaurain.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(INC
+	.
+	include
+)
+
+set(INC_SYS
+
+)
+
+set(SRC
+	include/sdlew.h
+	src/sdlew.c
+)
+
+blender_add_lib(extern_sdlew "${SRC}" "${INC}" "${INC_SYS}")