find-package.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cf8245b8b..233390a5f 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -127,9 +127,9 @@ mark_as_advanced(OSGEARTH_ASSUME_SINGLE_GL_CONTEXT)
 
 # Mobile/GLES:
 IF (OSGEARTH_USE_GLES)
-    find_package(OpenGLES)
+    find_package(OpenGLES REQUIRED)
 ELSE ()
-    find_package(OpenGL)
+    find_package(OpenGL REQUIRED)
 ENDIF (OSGEARTH_USE_GLES)
 
 
@@ -147,35 +147,54 @@ if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
 endif()
 
 # required
-find_package(OSG REQUIRED)
+find_package(OSG NAMES unofficial-osg)
+find_path(OSG_INCLUDE_DIR osg/Version) # For detecting the version and setting the plugin path
+set(OSG_INCLUDE_DIRS "")
+set(OSG_LIBRARY unofficial::osg::osg)
+set(OSGUTIL_LIBRARY unofficial::osg::osgUtil)
+set(OSGDB_LIBRARY unofficial::osg::osgDB)
+set(OSGTEXT_LIBRARY unofficial::osg::osgText)
+set(OSGSIM_LIBRARY unofficial::osg::osgSim)
+set(OSGVIEWER_LIBRARY unofficial::osg::osgViewer)
+set(OSGGA_LIBRARY unofficial::osg::osgViewer)
+set(OSGSHADOW_LIBRARY unofficial::osg::osgShadow)
+set(OSGMANIPULATOR_LIBRARY unofficial::osg::osgManipulator)
+set(OPENTHREADS_LIBRARY unofficial::osg::OpenThreads)
 find_package(CURL REQUIRED)
 find_package(GDAL REQUIRED)
 
 # optional
-find_package(GEOS)
-find_package(Sqlite3)
-find_package(Draco)
-find_package(BASISU)
-find_package(GLEW)
-find_package(Protobuf)
-find_package(WEBP)
-find_package(Blend2D)
-find_package(Blosc)
+find_package(GEOS CONFIG REQUIRED)
+set(GEOS_LIBRARY GEOS::geos_c)
+find_package(SQLITE3 NAMES unofficial-sqlite3 REQUIRED)
+set(SQLITE3_LIBRARY unofficial::sqlite3::sqlite3)
+find_package(Draco REQUIRED)
+find_package(BASISU REQUIRED)
+find_package(GLEW REQUIRED)
+find_package(Protobuf REQUIRED)
+find_package(WEBP NAMES WebP CONFIG REQUIRED)
+set(WEBP_LIBRARY WebP::webp)
+if(WITH_BLEND2D)
+    find_package(BLEND2D CONFIG REQUIRED)
+    set(BLEND2D_LIBRARY blend2d::blend2d)
+endif()
+find_package(BLOSC REQUIRED)
 
 if(OSGEARTH_ENABLE_PROFILING)
-    find_package(Tracy)
+    find_package(Tracy REQUIRED)
 endif()
 
 if(OSGEARTH_BUILD_ZIP_PLUGIN)
-    find_package(LibZip)
+    find_package(libzip CONFIG REQUIRED)
+    set(LIBZIP_LIBRARY libzip::zip)
 endif()
 
 if(OSGEARTH_BUILD_TRITON_NODEKIT)
-    find_package(Triton QUIET)
+    find_package(Triton QUIET REQUIRED)
 endif()
 
 if(OSGEARTH_BUILD_SILVERLINING_NODEKIT)
-    find_package(SilverLining QUIET)
+    find_package(SilverLining QUIET REQUIRED)
 endif()
 
 # Sqlite enables the MBTiles format:
@@ -221,7 +240,7 @@ SET (PROTOBUF_USE_DLLS FALSE CACHE BOOL "Set this to true if Protobuf is compile
 # Duktape is the JavaScript interpreter
 SET (WITH_EXTERNAL_DUKTAPE FALSE CACHE BOOL "Use bundled or system wide version of Duktape")
 IF (WITH_EXTERNAL_DUKTAPE)
-    find_package(Duktape)
+    find_package(Duktape REQUIRED)
 ENDIF (WITH_EXTERNAL_DUKTAPE)
 
 # Whether to install shaders (glsl files).
@@ -232,7 +251,8 @@ OPTION(OSGEARTH_INSTALL_SHADERS "Whether to deploy GLSL shaders when doing a Mak
 # TinyXML is an XML parsing library
 SET (WITH_EXTERNAL_TINYXML FALSE CACHE BOOL "Use bundled or system wide version of TinyXML")
 IF (WITH_EXTERNAL_TINYXML)
-    find_package(TinyXML)
+    find_package(TINYXML NAMES tinyxml REQUIRED)
+    set(TINYXML_LIBRARY unofficial-tinyxml::unofficial-tinyxml)
 ENDIF (WITH_EXTERNAL_TINYXML)
 
 # postfix settings for various configs
@@ -307,6 +327,7 @@ IF(OSGEARTH_BUILD_SHARED_LIBS)
     SET(OSGEARTH_DYNAMIC_OR_STATIC "SHARED")
 ELSE()
     SET(OSGEARTH_DYNAMIC_OR_STATIC "STATIC")
+    add_definitions(-DOSGEARTH_LIBRARY_STATIC)
 ENDIF()