Source: https://gitlab.archlinux.org/archlinux/packaging/packages/alure/-/blob/main/dumb-2.patch diff -Naur a/src/codec_dumb.cpp b/src/codec_dumb.cpp --- a/src/codec_dumb.cpp 2011-07-29 09:37:48.000000000 +0100 +++ b/src/codec_dumb.cpp 2020-05-10 15:59:48.502632496 +0100 @@ -272,7 +272,11 @@ private: // DUMBFILE iostream callbacks +#if DUMB_VERSION >= 2*10000 + static int skip(void *user_data, dumb_off_t offset) +#else static int skip(void *user_data, long offset) +#endif { std::istream *stream = static_cast(user_data)->fstream; stream->clear(); @@ -282,7 +286,11 @@ return -1; } +#if DUMB_VERSION >= 2*10000 + static dumb_ssize_t read(char *ptr, size_t size, void *user_data) +#else static long read(char *ptr, long size, void *user_data) +#endif { std::istream *stream = static_cast(user_data)->fstream; stream->clear();