* Nikolaus Rath <[email protected]>, 2011-05-22, 21:17:
gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions
build/temp.linux-x86_64-2.7/src/llfuse.o -o
build/lib.linux-x86_64-2.7/llfuse.so --as-needed -pthread -lfuse -lrt -ld
You want to use "-Wl,--as-needed", not "--as-needed". ("--as-needed"
is a linker option, not a compiler option.)
Doesn't seem to make any difference:
[...]
gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions
build/temp.linux-x86_64-2.6/src/llfuse.o -o
build/lib.linux-x86_64-2.6/llfuse.so -Wl,--as-needed -pthread -lfuse -lrt -ldl
copying build/lib.linux-x86_64-2.6/llfuse.so -> src
$ ldd src/llfuse.so
linux-vdso.so.1 => (0x00007fff63dff000)
libfuse.so.2 => /usr/lib/libfuse.so.2 (0x00007fe771490000)
libpthread.so.0 => /lib/libpthread.so.0 (0x00007fe771274000)
libc.so.6 => /lib/libc.so.6 (0x00007fe770ef0000)
librt.so.1 => /lib/librt.so.1 (0x00007fe770ce8000)
libdl.so.2 => /lib/libdl.so.2 (0x00007fe770ae4000)
/lib64/ld-linux-x86-64.so.2 (0x00007fe77193b000)
Please keep in mind that ldd is recursive. Since libfuse.so.2 is linked
with librt and libdl, these two will show up in ldd output regardless of
whether llfuse is linked with them or not.
Use "readelf -d /path/to/library | grep NEEDED" instead of ldd.
--
Jakub Wilk
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