Use the default CMake modules for finding gettext instead of our own.

modules/CMakeLists.txt

@@ -60,7 +60,7 @@ macro(build_modules SRC)
             endif()
             set_target_properties(${SO} PROPERTIES LINKER_LANGUAGE CXX PREFIX "" SUFFIX "" LINK_FLAGS "${TEMP_LDFLAGS} ${WIN32_NO_LIBS}" INSTALL_RPATH_USE_LINK_PATH ON BUILD_WITH_INSTALL_RPATH ON)
             add_dependencies(${SO} ${PROGRAM_NAME})
-            if(GETTEXT_FOUND)
+            if(HAVE_LOCALIZATION)
               add_dependencies(${SO} module_language)
             endif()
             target_link_libraries(${SO} ${TEMP_DEPENDENCIES})
@@ -143,7 +143,7 @@ macro(build_subdir)
     add_library(${SO} MODULE ${MODULES_SUBDIR_SRCS})
     set_target_properties(${SO} PROPERTIES LINKER_LANGUAGE CXX PREFIX "" SUFFIX "" LINK_FLAGS "${SUBDIR_LDFLAGS}" INSTALL_RPATH_USE_LINK_PATH ON BUILD_WITH_INSTALL_RPATH ON)
     add_dependencies(${SO} ${PROGRAM_NAME})
-    if(GETTEXT_FOUND)
+    if(HAVE_LOCALIZATION)
       add_dependencies(${SO} module_language)
     endif()
     target_link_libraries(${SO} ${SUBDIR_EXTRA_DEPENDS})

modules/third/language/CMakeLists.txt

@@ -1,5 +1,5 @@
 # Only do this if gettext is installed
-if(GETTEXT_FOUND)
+if(HAVE_LOCALIZATION)
   # Get all of the .po files
   file(GLOB LANG_SRCS_PO RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*.*.po")
   list(SORT LANG_SRCS_PO)