CMake: prevent mismatched package name warnings

Use all caps for the packages.

Closes https://github.com/wxWidgets/wxWidgets/pull/1886

build/cmake/modules/FindLIBNOTIFY.cmake

@@ -0,0 +1,55 @@
+# - Try to find LibNotify
+# This module defines the following variables:
+#
+#  LIBNOTIFY_FOUND - LibNotify was found
+#  LIBNOTIFY_INCLUDE_DIRS - the LibNotify include directories
+#  LIBNOTIFY_LIBRARIES - link these to use LibNotify
+#
+# Copyright (C) 2012 Raphael Kubo da Costa <rakuco@webkit.org>
+# Copyright (C) 2014 Collabora Ltd.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1.  Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+# 2.  Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND ITS CONTRIBUTORS ``AS
+# IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR ITS
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+find_package(PkgConfig)
+pkg_check_modules(LIBNOTIFY QUIET libnotify)
+
+find_path(LIBNOTIFY_INCLUDE_DIRS
+    NAMES notify.h
+    HINTS ${LIBNOTIFY_INCLUDEDIR}
+          ${LIBNOTIFY_INCLUDE_DIRS}
+    PATH_SUFFIXES libnotify
+)
+
+find_library(LIBNOTIFY_LIBRARIES
+    NAMES notify
+    HINTS ${LIBNOTIFY_LIBDIR}
+          ${LIBNOTIFY_LIBRARY_DIRS}
+)
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBNOTIFY REQUIRED_VARS LIBNOTIFY_INCLUDE_DIRS LIBNOTIFY_LIBRARIES
+                                            VERSION_VAR   LIBNOTIFY_VERSION)
+
+mark_as_advanced(
+    LIBNOTIFY_INCLUDE_DIRS
+    LIBNOTIFY_LIBRARIES
+)