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This addresses https://github.com/libfuse/libfuse/issues/729
commit db35a37def14b72181f3630efeea0e0433103c41 introduced a public
config.h (rename to fuse_config.h to avoid conflicts) that
was installed with the package and included by libfuse users
through fuse_common.h. Probablem is that this file does not have
unique defines so that they are unique to libfuse - on including
the file conflicts with libfuse users came up.
In principle all defines could be prefixed, but then most of them
are internal for libfuse compilation only. So this splits out
publically required defines to a new file 'libfuse_config.h'
and changes back to include of "fuse_config.h" only when
HAVE_LIBFUSE_PRIVATE_CONFIG_H is defined.
This also renames HAVE_LIBC_VERSIONED_SYMBOLS to
LIBFUSE_BUILT_WITH_VERSIONED_SYMBOLS, as it actually
better explains for libfuse users what that variable
is for.
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In fact only gnu-libc fully supports symbol versioning, so it is
better to have a generic macro for it. This also allows to manually
disable symbol version and allows to run tests with that
configuration on gnu-libc. That testing will still not catch compat
issues, but least ensures the code can compile.
Testing for __APPLE__ and __ULIBC__ is now done by meson. More of such
checks can be added by people using other libcs.
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struct fuse_loop_config was passed as a plain struct, without any
version identifer. This had two implications
1) Any addition of new parameters required a FUSE_SYMVER for
fuse_session_loop_mt() and fuse_loop_mt() as otherwise a read
beyond end-of previous struct size might have happened.
2) Filesystems also might have been recompiled and the developer
might not have noticed the struct extensions and unexpected for
the developer (or people recomliling the code) uninitialized
parameters would have been passed.
Code is updated to have struct fuse_loop_config as an opaque/private
data type for file systems that want version 312
(FUSE_MAKE_VERSION(3, 12)). The deprecated fuse_loop_config_v1
is visible, but should not be used outside of internal
conversion functions
File systems that want version >= 32 < 312 get the previous
struct (through ifdefs) and the #define of fuse_loop_mt
and fuse_session_loop_mt ensures that these recompiled file
systems call into the previous API, which then converts
the struct. This is similar to existing compiled applications
when just libfuse updated, but binaries it is solved with
the FUSE_SYMVER ABI compact declarations.
Signed-off-by: Bernd Schubert <bschubert@ddn.com>
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This seems to have been added before 2006 to fix a uclibc bug. It
doesn't seem to be the case anymore so just get rid of it.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
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This actually prevents sshfs linking to it as fuse_new becomes
unavailable.
According to the git history, this seems to predate 2006.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
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add AC_SYS_LARGEFILE to your configure.ac instead.
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MacOSX uses MachO binary format that does not support symbols.
This change comes from fuse4x project (fuse implementation for macosx).
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