Add GLFW source tree to src/external

We need the CMake stuff for wayland configuration.
Otherwise, we would have to replicate that ourselves.
This is the full 7ef34eb06de54dd9186d3d21a401b2ef819b59e7 tree except
for tests/ examples/ and docs/

1 files changed, 34 insertions, 0 deletions

diff --git a/src/external/glfw/CMake/modules/FindXKBCommon.cmake b/src/external/glfw/CMake/modules/FindXKBCommon.cmake
new file mode 100644
index 00000000..0f571eea
--- /dev/null
+++ b/src/external/glfw/CMake/modules/FindXKBCommon.cmake
@@ -0,0 +1,34 @@
+# - Try to find XKBCommon
+# Once done, this will define
+#
+#   XKBCOMMON_FOUND - System has XKBCommon
+#   XKBCOMMON_INCLUDE_DIRS - The XKBCommon include directories
+#   XKBCOMMON_LIBRARIES - The libraries needed to use XKBCommon
+#   XKBCOMMON_DEFINITIONS - Compiler switches required for using XKBCommon
+
+find_package(PkgConfig)
+pkg_check_modules(PC_XKBCOMMON QUIET xkbcommon)
+set(XKBCOMMON_DEFINITIONS ${PC_XKBCOMMON_CFLAGS_OTHER})
+
+find_path(XKBCOMMON_INCLUDE_DIR
+    NAMES xkbcommon/xkbcommon.h
+    HINTS ${PC_XKBCOMMON_INCLUDE_DIR} ${PC_XKBCOMMON_INCLUDE_DIRS}
+)
+
+find_library(XKBCOMMON_LIBRARY
+    NAMES xkbcommon
+    HINTS ${PC_XKBCOMMON_LIBRARY} ${PC_XKBCOMMON_LIBRARY_DIRS}
+)
+
+set(XKBCOMMON_LIBRARIES ${XKBCOMMON_LIBRARY})
+set(XKBCOMMON_LIBRARY_DIRS ${XKBCOMMON_LIBRARY_DIRS})
+set(XKBCOMMON_INCLUDE_DIRS ${XKBCOMMON_INCLUDE_DIR})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(XKBCommon DEFAULT_MSG
+    XKBCOMMON_LIBRARY
+    XKBCOMMON_INCLUDE_DIR
+)
+
+mark_as_advanced(XKBCOMMON_LIBRARY XKBCOMMON_INCLUDE_DIR)
+