cmake: Convert message_trgt function to support varargs.

Add an additional message_XXX function for printing a path [in brackets].

Author: linuxdude42

mythtv/cmake/PrintConfig.cmake

@@ -4,39 +4,38 @@
 # See the file LICENSE_FSF for licensing information.
 #
 
-function(message_trgt _label _target)
+function(target_to_yn _target _varname)
   if(TARGET ${_target})
-    set(_string yes)
-  else()
-    set(_string no)
-  endif()
-  if(${ARGC} GREATER 2)
-    message("${_label}  ${_string} [${ARGV2}]")
+    set(${_varname} "yes" PARENT_SCOPE)
   else()
-    message("${_label}  ${_string}")
+    set(${_varname} "no" PARENT_SCOPE)
   endif()
 endfunction()
 
-function(message_trg2 _label _target _extra)
-  if(TARGET ${_target})
-    set(_string yes)
-  else()
-    set(_string no)
+function(message_trgt _label _target)
+  target_to_yn(${_target} _yn)
+  if (ARGC LESS 3)
+    message("${_label}  ${_yn}")
+    return()
   endif()
-  message("${_label}  ${_string} ${_extra}")
+
+  set(_args ${ARGN})
+  while(_args)
+    list(POP_FRONT _args _l2 _t2)
+    target_to_yn(${_t2} _yn2)
+    list(APPEND _rest "${_l2} ${_yn2}")
+  endwhile()
+  list(JOIN _rest ", " _rest)
+  message("${_label}  ${_yn} (${_rest})")
 endfunction()
 
-function(message_trg4 _label1 _target1 _label2 _target2)
-  if(NOT TARGET ${_target1})
-    message("${_label1}  no")
-    return()
-  endif()
-  if(TARGET ${_target2})
-    set(_string2 yes)
+function(message_trgp _label _target)
+  target_to_yn(${_target} _string)
+  if(${ARGC} GREATER 2)
+    message("${_label}  ${_yn} [${ARGV2}]")
   else()
-    set(_string12 no)
+    message("${_label}  ${_yn}")
   endif()
-  message("${_label1}  yes (${_label2} ${_string2})")
 endfunction()
 
 function(message_vrbl _label _vname)
@@ -120,7 +119,7 @@ if(CONFIG_FRONTEND)
   message("# Input Support")
   message_trgt("Joystick menu           " joystick)
   message_trgt("lirc support            " lirc)
-  message_trgt("libCEC device support   " PkgConfig::LibCEC
+  message_trgp("libCEC device support   " PkgConfig::LibCEC
                ${LibCEC_INCLUDE_DIRS})
   if(APPLE)
     message("Apple Remote              yes")
@@ -130,7 +129,7 @@ endif()
 if(ENABLE_BACKEND)
   message_trgt("Video4Linux support     " PkgConfig::V4L2)
   message_vrbl("FireWire support        " ENABLE_FIREWIRE)
-  message_trgt("DVB support             " mythtv_dvb ${DVB_PATH})
+  message_trgp("DVB support             " mythtv_dvb ${DVB_PATH})
   message_vrbl("DVB-S2 support          " HAVE_FE_CAN_2G_MODULATION)
   message_trgt("HDHomeRun support       " HDHomerun::HDHomerun)
   message_trgt("Sat>IP support          " mythtv_satip)
@@ -167,25 +166,25 @@ if(ENABLE_FRONTEND)
   if(APPLE)
     message_vrbl("VideoToolBox support    " APPLE_VIDEOTOOLBOX_LIBRARY)
   endif()
-  message_trgt("VAAPI support           " PkgConfig::VAAPI "DRM ${CONFIG_VAAPI_DRM}, GLX ${CONFIG_VAAPI_GLX}, X11 ${CONFIG_VAAPI_X11}")
+  message_trgt("VAAPI support           " PkgConfig::VAAPI "DRM" PkgConfig::VA-DRM "GLX" PkgConfig::VA-GLX "X11" PkgConfig::VA-X11)
   message_trgt("DRM support             " PkgConfig::DRM)
   if(TARGET PkgConfig::DRM)
     message_trgt("DRM Qt integration      " Qt${QT_VERSION_MAJOR}::GuiPrivate)
   endif()
-  message_trg4("Video4Linux codecs      " PkgConfig::V4L2 "DRM" PkgConfig::DRM)
+  message_trgt("Video4Linux codecs      " PkgConfig::V4L2 "DRM" PkgConfig::DRM)
   message_trgt("MMAL decoder support    " mythtv_mmal)
   if(TARGET OpenGL::GL)
     message_trgt("OpenGL                  " OpenGL::GL)
     message_trgt("EGL support             " OpenGL::EGL)
   elseif(TARGET PkgConfig::GLES2)
-    message_trgt("OpenGL                  " PkgConfig::GLES2 "GLES")
+    message_trgt("OpenGL                  " PkgConfig::GLES2 "GLES" true)
     message_trgt("EGL support             " PkgConfig::EGL)
   endif()
   if(WIN32)
     message_vrbl("Windows (Direct3D)      " HAVE_D3D9_H)
     message_vrbl("DXVA2 support           " HAVE_DXVA2)
   endif()
-  message_trg4("Vulkan                  " Vulkan::Vulkan "libglslang"
+  message_trgt("Vulkan                  " Vulkan::Vulkan "libglslang"
                PkgConfig::GLSLANG)
   message_trgt("MHEG support            " mythtv_mheg)
   message_trgt("libass subtitle support " PkgConfig::LIBASS)