Merge commit 'dec0d4ec4153bf9fc2b78ae6c2df45b6ea8dde7a' as 'external/sdl/SDL'

external/sdl/SDL/cmake/FindRPi_BcmHost.cmake

@@ -0,0 +1,75 @@
+include(FeatureSummary)
+set_package_properties(RPi_BcmHost PROPERTIES
+    URL "https://github.com/raspberrypi/firmware"
+    DESCRIPTION "Broadcom VideoCore host API library"
+)
+
+set(RPi_BcmHost_PKG_CONFIG_SPEC bcm_host)
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_RPi_BcmHost QUIET ${RPi_BcmHost_PKG_CONFIG_SPEC})
+
+find_library(RPi_BcmHost_bcm_host_LIBRARY
+    NAMES bcm_host
+    HINTS
+        ${PC_RPi_BcmHost_LIBRARY_DIRS}
+        /opt/vc/lib
+)
+
+find_path(RPi_BcmHost_bcm_host_h_PATH
+    NAMES bcm_host.h
+    HINTS
+        ${PC_RPi_BcmHost_INCLUDE_DIRS}
+        /opt/vc/include
+)
+
+if(PC_RPi_BcmHost_FOUND)
+    include("${CMAKE_CURRENT_LIST_DIR}/PkgConfigHelper.cmake")
+    get_flags_from_pkg_config("${RPi_BcmHost_bcm_host_LIBRARY}" "PC_RPi_BcmHost" "_RPi_BcmHost")
+else()
+    set(_RPi_BcmHost_include_dirs
+        /opt/vc/include
+        /opt/vc/include/interface/vcos/pthreads
+        /opt/vc/include/interface/vmcs_host/linux
+    )
+    set(_RPi_BcmHost_compile_options
+        -DUSE_VCHIQ_ARM
+    )
+    set(_RPi_BcmHost_link_libraries
+        -lvcos -lvchiq_arm
+    )
+    set(_RPi_BcmHost_link_options
+        -pthread
+    )
+    set(_RPi_BcmHost_link_directories
+        /opt/vc/lib
+    )
+endif()
+
+set(RPi_BcmHost_INCLUDE_DIRS "${_RPi_BcmHost_include_dirs}" CACHE STRING "Extra include dirs of bcm_host")
+
+set(RPi_BcmHost_COMPILE_OPTIONS "${_RPi_BcmHost_compile_options}" CACHE STRING "Extra compile options of bcm_host")
+
+set(RPi_BcmHost_LINK_LIBRARIES "${_RPi_BcmHost_link_libraries}" CACHE STRING "Extra link libraries of bcm_host")
+
+set(RPi_BcmHost_LINK_OPTIONS "${_RPi_BcmHost_link_options}" CACHE STRING "Extra link flags of bcm_host")
+
+set(RPi_BcmHost_LINK_DIRECTORIES "${_RPi_BcmHost_link_directories}" CACHE PATH "Extra link directories of bcm_host")
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(RPi_BcmHost
+    REQUIRED_VARS RPi_BcmHost_bcm_host_LIBRARY RPi_BcmHost_bcm_host_h_PATH
+)
+
+if(RPi_BcmHost_FOUND)
+    if(NOT TARGET RPi_BcmHost::RPi_BcmHost)
+        add_library(RPi_BcmHost::RPi_BcmHost INTERFACE IMPORTED)
+        set_target_properties(RPi_BcmHost::RPi_BcmHost PROPERTIES
+            INTERFACE_INCLUDE_DIRECTORIES "${RPi_BcmHost_INCLUDE_DIRS}"
+            INTERFACE_COMPILE_OPTIONS "${RPi_BcmHost_COMPILE_OPTIONS}"
+            INTERFACE_LINK_LIBRARIES "${RPi_BcmHost_LINK_LIBRARIES}"
+            INTERFACE_LINK_OPTIONS "${RPi_BcmHost_LINK_OPTIONS}"
+            INTERFACE_LINK_DIRECTORIES "${RPi_BcmHost_LINK_DIRECTORIES}"
+          )
+    endif()
+endif()