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Christian Kellner authored
Test if the copy_file_range(2) function is available and define HAVE_FN_COPY_FILE_RANGE as 1 if so, as 0 otherwise. _GNU_SOURCE must be defined in for glibc to expose it, so add that for all function tests.
3aa83dc3
Test if the copy_file_range(2) function is available and define HAVE_FN_COPY_FILE_RANGE as 1 if so, as 0 otherwise. _GNU_SOURCE must be defined in for glibc to expose it, so add that for all function tests.