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Diffstat (limited to 'doc/largefile.texi')
| -rw-r--r-- | doc/largefile.texi | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/doc/largefile.texi b/doc/largefile.texi index 13572b47e5..b5bfa5116a 100644 --- a/doc/largefile.texi +++ b/doc/largefile.texi @@ -1,9 +1,22 @@ @node Large File Support @section Large File Support -The module provides support for files larger than 2 GB, or with device -or inode numbers or timestamps exceeding 32 bits. To this effect, it -ensures that types like @code{off_t} and @code{time_t} are 64-bit when possible, +The Gnulib @samp{largefile-required} module provides support for files +2 GiB and larger, or with device or inode numbers exceeding 32 bits. +To this effect, it ensures that types like @code{off_t} and +@code{ino_t} are 64-bit, at least on the following platforms: glibc, Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, HP-UX, IRIX, Solaris, Cygwin, mingw, MSVC. + +The Gnulib @samp{largefile} module is similar, except that it gives +@command{configure} an option @samp{--disable-largefile} that +suppresses support for large files. This may be useful if the package +links to other libraries whose user-facing ABIs still require +@code{off_t} or most other file-related types to be 32-bit on your +platform. + +Both modules also add to @command{configure} an option +@code{--enable-year2038}, needed on some platforms to access files +with timestamps past the year 2038. @xref{Avoiding the year 2038 +problem}. |