sync with upstream

1 files changed, 57 insertions, 0 deletions

diff --git a/cmake/modules/FindX.cmake b/cmake/modules/FindX.cmake
new file mode 100644
index 0000000..19bb770
--- /dev/null
+++ b/cmake/modules/FindX.cmake
@@ -0,0 +1,57 @@
+#.rst:
+# FindX
+# -----
+# Finds the X11 library
+#
+# This will will define the following variables::
+#
+# X_FOUND - system has X11
+# X_INCLUDE_DIRS - the X11 include directory
+# X_LIBRARIES - the X11 libraries
+# X_DEFINITIONS - the X11 definitions
+#
+# and the following imported targets::
+#
+#   X::X    - The X11 library
+#   X::Xext - The X11 extension library
+
+if(PKG_CONFIG_FOUND)
+  pkg_check_modules(PC_X x11 xext QUIET)
+endif()
+
+find_path(X_INCLUDE_DIR NAMES X11/Xlib.h
+                        PATHS ${PC_X_x11_INCLUDEDIR})
+find_library(X_LIBRARY NAMES X11
+                       PATHS ${PC_X_x11_LIBDIR})
+find_library(X_EXT_LIBRARY NAMES Xext
+                           PATHS ${PC_X_xext_LIBDIR})
+
+set(X_VERSION ${PC_X_x11_VERSION})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(X
+                                  REQUIRED_VARS X_LIBRARY X_EXT_LIBRARY X_INCLUDE_DIR
+                                  VERSION_VAR X_VERSION)
+
+if(X_FOUND)
+  set(X_LIBRARIES ${X_LIBRARY} ${X_EXT_LIBRARY})
+  set(X_INCLUDE_DIRS ${X_INCLUDE_DIR})
+  set(X_DEFINITIONS -DHAVE_X11=1)
+
+  if(NOT TARGET X::X)
+    add_library(X::X UNKNOWN IMPORTED)
+    set_target_properties(X::X PROPERTIES
+                               IMPORTED_LOCATION "${X_LIBRARY}"
+                               INTERFACE_INCLUDE_DIRECTORIES "${X_INCLUDE_DIR}"
+                               INTERFACE_COMPILE_DEFINITIONS HAVE_X11=1)
+  endif()
+  if(NOT TARGET X::Xext)
+    add_library(X::Xext UNKNOWN IMPORTED)
+    set_target_properties(X::Xext PROPERTIES
+                                  IMPORTED_LOCATION "${X_EXT_LIBRARY}"
+                                  INTERFACE_INCLUDE_DIRECTORIES "${X_INCLUDE_DIR}"
+                                  INTERFACE_LINK_LIBRARIES X::X)
+  endif()
+endif()
+
+mark_as_advanced(X_INCLUDE_DIR X_LIBRARY X_EXT_LIBRARY)