cmake/modules/OptimizeHeaders.cmake

   1 # Copyright (C) 2015, Ivailo Monev, <xakepa10@gmail.com>
   2 # Redistribution and use is allowed according to the terms of the BSD license.
   3
   4 # UNIFDEF_EXECUTABLE and HEADERS_DIRECTORY origin from the macro call
   5
   6 set(headers_directory "$ENV{DESTDIR}/${HEADERS_DIRECTORY}")
   7 file(GLOB_RECURSE headers "${headers_directory}/*.h")
   8
   9 set(unifdef_arguments
  10     # bootstrap
  11     -UQT_BOOTSTRAPPED
  12     -UQT_MOC
  13     # not supported
  14     -UQT_NO_QOBJECT
  15     -UQT_NO_COMPRESS
  16     -UQT_NO_THREAD
  17     -UQT_NO_PROCESS
  18     -UQT_NO_DATASTREAM
  19     -UQT_NO_TEXTSTREAM
  20     -UQT_NO_REGEXP
  21     -UQT_NO_REGEXP_ANCHOR_ALT
  22     -UQT_NO_REGEXP_BACKREF
  23     -UQT_NO_REGEXP_CAPTURE
  24     -UQT_NO_REGEXP_CCLASS
  25     -UQT_NO_REGEXP_ESCAPE
  26     -UQT_NO_REGEXP_INTERVAL
  27     -UQT_NO_REGEXP_LOOKAHEAD
  28     -UQT_NO_REGEXP_OPTIM
  29     -UQT_NO_REGEXP_WILDCARD
  30     -UQT_NO_STANDARDPATHS
  31     -UQT_NO_SETTINGS
  32     -UQT_NO_TEXTCODEC
  33     # exports
  34     -UKtCore_EXPORTS
  35     -UKtGui_EXPORTS
  36     -UKtNetwork_EXPORTS
  37     -UKtSvg_EXPORTS
  38     -UKtTest_EXPORTS
  39     -UKtDeclarative_EXPORTS
  40     -UKtXml_EXPORTS
  41     -UKtScript_EXPORTS
  42     -UKtScriptTools_EXPORTS
  43     -UKtDBus_EXPORTS
  44     -UKtUiTools_EXPORTS
  45     -UKtDesigner_EXPORTS
  46 )
  47
  48 message(STATUS "Optimizing header in: ${headers_directory}")
  49 execute_process(
  50     COMMAND ${UNIFDEF_EXECUTABLE} -m ${unifdef_arguments} ${headers}
  51     RESULT_VARIABLE unifdef_result
  52     ERROR_VARIABLE unifdef_output
  53     OUTPUT_VARIABLE unifdef_output
  54 )
  55 # unifdef exits with status 1 if the output differes, see its man page
  56 if(unifdef_result GREATER 1)
  57     message(FATAL_ERROR "${unifdef_output} (${unifdef_result})")
  58 endif()