cmake: add build translations option

src/common/CMakeLists.txt

@@ -61,8 +61,12 @@ monero_private_headers(common
 monero_add_library(common
   ${common_sources}
   ${common_headers}
-  ${common_private_headers}
-  DEPENDS generate_translations_header)
+  ${common_private_headers})
+
+if(BUILD_TRANSLATIONS)
+  add_dependencies(obj_common generate_translations_header)
+endif()
+
 target_link_libraries(common
   PUBLIC
     cncrypto

src/common/i18n.cpp

@@ -33,7 +33,14 @@
 #include <map>
 #include "file_io_utils.h"
 #include "common/i18n.h"
+
+#if __has_include("translation_files.h")
 #include "translation_files.h"
+#else
+static bool find_embedded_file(const std::string &name, std::string &data) {
+  return false;
+}
+#endif
 
 #include <boost/system/error_code.hpp>
 #include <boost/filesystem.hpp>