allow to build with helps of cmake

cmake/FindGettextTools/config.cmake.in

@@ -0,0 +1,14 @@
+# This file is automatically generated by GettextTools.
+# It WILL be overwritten by CMake, so editing it is futile. Sorry!
+
+set(hierarchy           "${_parsedArguments_HIERARCHY}")
+set(keywords            "${_parsedArguments_KEYWORDS}")
+set(domain              "${_parsedArguments_DOMAIN}")
+set(sourcePrefix        "${CMAKE_CURRENT_SOURCE_DIR}")
+set(stockDir            "${_parsedArguments_STOCK_DIR}")
+set(langDir             "${_parsedArguments_LANG_DIR}")
+set(outDir              "${_parsedArguments_OUT_DIR}")
+set(XGETTEXT_EXECUTABLE "${GETTEXT_XGETTEXT_EXECUTABLE}")
+set(MSGMERGE_EXECUTABLE "${GETTEXT_MSGMERGE_EXECUTABLE}")
+set(MSGFMT_EXECUTABLE   "${GETTEXT_MSGFMT_EXECUTABLE}")
+set(sourceFiles         "${_parsedArguments_SOURCE}")

cmake/FindGettextTools/script.cmake

@@ -0,0 +1,103 @@
+# ----- Set up variables.
+
+# Read variables from the generated config.
+include(${CMAKE_ARGV3})
+
+# Transform keywords in to flags.
+set(keywordArgs "")
+foreach(keyword ${keywords})
+  list(APPEND keywordArgs "--keyword=${keyword}")
+endforeach()
+
+# ----- Make the pot file.
+
+message("Creating translation template...")
+
+file(MAKE_DIRECTORY ${langDir})
+
+set(potFile "${langDir}/${domain}.pot")
+
+execute_process(COMMAND ${XGETTEXT_EXECUTABLE}
+  "--output=${potFile}"
+  "--omit-header" "--add-comments"
+  ${keywordArgs}
+  ${sourceFiles}
+  WORKING_DIRECTORY ${sourcePrefix})
+
+message(" '${domain}.pot' done.")
+
+# ----- Copy and merge across the po files that come with the source.
+
+message("Copying and updating stock translations...")
+
+file(GLOB poFiles "${stockDir}/*.po")
+
+foreach(file ${poFiles})
+  # Get the language name, like en_US or zh_CN from the name of the po file, so
+  # 'en_US.po' or 'zh_CN.po' become 'en_US' or 'zh_CN.po'
+  get_filename_component(langName ${file} NAME_WE)
+  
+  set(newFile "${langDir}/${langName}.po")
+  
+  if(NOT EXISTS ${newFile})
+    execute_process(COMMAND ${MSGMERGE_EXECUTABLE}
+      "--output-file" ${newFile} ${file} ${potFile}
+      OUTPUT_QUIET ERROR_VARIABLE error RESULT_VARIABLE ret)
+    
+    if(ret) # Have to do this hack as msgmerge prints to stderr.
+      message(SEND_ERROR "${error}")
+    endif()
+    
+    message(" '${langName}' copied.")
+  elseif(${file} IS_NEWER_THAN ${newFile})
+     execute_process(COMMAND ${MSGMERGE_EXECUTABLE}
+       "--update" ${newFile} ${file}
+       OUTPUT_QUIET ERROR_VARIABLE error RESULT_VARIABLE ret)
+     
+     if(ret) # Have to do this hack as msgmerge prints to stderr.
+       message(SEND_ERROR "${error}")
+     endif()
+     
+     message(" '${langName}' merged.")
+  endif()
+endforeach()
+
+# ----- Process the files in to mo files.
+
+message("Compiling translations...")
+
+file(GLOB localPoFiles "${langDir}/*.po")
+
+foreach(file ${localPoFiles})
+  execute_process(COMMAND ${MSGMERGE_EXECUTABLE}
+    "--update" ${file} ${potFile}
+    OUTPUT_QUIET ERROR_VARIABLE error RESULT_VARIABLE ret)
+  
+  if(ret) # Have to do this hack as msgmerge prints to stderr.
+    message(SEND_ERROR "${error}")
+  endif()
+  
+  get_filename_component(langName ${file} NAME_WE)
+  
+  set(binaryFile "${hierarchy}")
+  string(REPLACE "{1}" "${outDir}"   binaryFile "${binaryFile}")
+  string(REPLACE "{2}" "${langName}" binaryFile "${binaryFile}")
+  string(REPLACE "{3}" "LC_MESSAGES" binaryFile "${binaryFile}")
+  string(REPLACE "{4}" "${domain}"   binaryFile "${binaryFile}")
+  
+  if(${file} IS_NEWER_THAN ${binaryFile})
+    get_filename_component(binaryDir ${binaryFile} PATH)
+    
+    file(MAKE_DIRECTORY ${binaryDir})
+    
+    execute_process(COMMAND ${MSGFMT_EXECUTABLE}
+      ${file} "--output-file" ${binaryFile}
+      OUTPUT_QUIET ERROR_VARIABLE error RESULT_VARIABLE ret)
+    
+    if(ret) # Have to do this hack as msgfmt prints to stderr.
+      message(SEND_ERROR "${error}")
+    endif()
+    
+    message(" '${langName}' done.")
+  endif()
+endforeach()