copied here.  */" "#include \"arg-nonnull.h\"" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "/* The definition of _GL_WARN_ON_USE is copied here.  */" "#include \"warn-on-use.h\"" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */" "#include \"c++defs.h\"" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@GNULIB_LSTAT@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@GNULIB_MBSINIT@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@GNULIB_SIGACTION@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@GNULIB_SIGPROCMASK@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@GNULIB_STPCPY@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@GNULIB_STPNCPY@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@GNULIB_STRCHRNUL@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@HAVE_ISWCNTRL@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@HAVE_WCTYPE_T@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@HAVE_STRUCT_TIMEVAL@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@HAVE_WINSOCK2_H@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@DLL_VARIABLE@" "" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@HAVE_NEWLOCALE@" "0" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@PRAGMA_COLUMNS@" "" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "#if @GNULIB_UTIME@" "#if 1\n#define utime gl_utime" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@HAVE_UTIME@" "1" HEADER_CONTENT "${HEADER_CONTENT}")
    string(REPLACE "@HAVE_LONG_LONG_INT@" "1" HEADER_CONTENT "${HEADER_CONTENT}")

    string(REGEX REPLACE "^${HEADER_TEMPLATES_ABS_PATH}/" "" HEADER_PATH "${HEADER_TEMPLATE}")
    string(REPLACE ".in" "" HEADER_PATH ${HEADER_PATH})
    string(REPLACE "_" "/" HEADER_PATH ${HEADER_PATH})
    # find_file will create a cache entry for the variable
    # SYSTEM_HEADER, so reset it before each call
    set(SYSTEM_HEADER "SYSTEM_HEADER-NOTFOUND")
    find_file(SYSTEM_HEADER ${HEADER_PATH} PATHS "${LIBICONV_INCLUDE_DIRS}")
    if(SYSTEM_HEADER)
      # Gnulib uses #include_next to extend system header files,
      # but MSVC doesn't support it, so a regular include directive
      # with a relative path is used instead
      string(REGEX REPLACE ".*/(.*/${HEADER_PATH})" "../\\1"
        INCLUDE_PATH "${SYSTEM_HEADER}")
      string(REGEX REPLACE "@INCLUDE_NEXT[^@]*@ @NEXT_[^@\n]+@"
        "include <${INCLUDE_PATH}>" HEADER_CONTENT "${HEADER_CONTENT}")
    endif()

    # Default any remaining template variables to 0
    string(REGEX REPLACE "@[^@\n]+@" "0" HEADER_CONTENT "${HEADER_CONTENT}")

    file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/${HEADER_TEMPLATES_PATH}/${HEADER_PATH}"