Struggling to compile encfs, linking with boost library
Hi there I want to use encfs on a box with a Debian distro that doesn't have recent encfs and boost packages available, so I'm compiling them from source. I installed boost like this:: $ ./configure --prefix=/home/zope/local It seems to complete fine. This incantation finds the libraries, but dies shortly thereafter:: zope@iwlearn:/home/zope/src/encfs-1.5$ CPPFLAGS=-I/home/zope/local/include/boost-1_38 ./configure --with-boost-libdir=/home/zope/local/lib --prefix=/home/zope/local [...] checking for boostlib >= 1.34... yes checking whether the Boost::System library is available... yes checking for exit in -lboost_system-gcc41-mt-1_38... yes configure: WARNING: BOOST_CPPFLAGS -I/usr/include checking whether the Boost::Serialization library is available... yes checking for exit in -lboost_serialization-gcc41-mt-1_38... yes checking whether the Boost::Filesystem library is available... yes checking for exit in -lboost_filesystem-gcc41-mt-1_38... no checking for exit in -lboost_filesystem-gcc41-mt-1_38... (cached) no checking for exit in -lboost_filesystem-gcc41-mt-1_38... (cached) no checking for exit in -lboost_filesystem-gcc41-mt... no checking for exit in -lboost_filesystem-gcc41-mt... (cached) no configure: error: Could not link against boost_filesystem-gcc41-mt ! I wonder why "checking for exit" works in -lboost_serialization-gcc41-mt-1_38 and not in -lboost_filesystem-gcc41-mt-1_38 .. What does that mean, "checking for exit"? (Googling ..) -- jean . .. .... //\\\oo///\\
AMDG Jean Jordaan wrote:
I installed boost like this::
$ ./configure --prefix=/home/zope/local
It seems to complete fine. This incantation finds the libraries, but dies shortly thereafter::
<snip>
checking for exit in -lboost_filesystem-gcc41-mt-1_38... no checking for exit in -lboost_filesystem-gcc41-mt-1_38... (cached) no checking for exit in -lboost_filesystem-gcc41-mt-1_38... (cached) no checking for exit in -lboost_filesystem-gcc41-mt... no checking for exit in -lboost_filesystem-gcc41-mt... (cached) no configure: error: Could not link against boost_filesystem-gcc41-mt !
Can you find out what link commands are failing? autoconf dumps them in config.log, I think. In Christ, Steven Watanabe
Hi Steven
Can you find out what link commands are failing? autoconf dumps them in config.log, I think.
I'm attaching the log. This looks like it corresponds to the error I'm seeing: /usr/bin/ld: warning: libboost_system-gcc41-mt-1_38.so.1.38.0, needed by /home/zope/local/lib/libboost_filesystem-gcc41-mt.so, not found (try using -rpath or -rpath-link) That file does exist: $ ls -lh /home/zope/local/lib/libboost_system-gcc41-mt-1_38.so.1.38.0 -rwxr-xr-x 1 zope zope 14K 2009-03-19 10:48 /home/zope/local/lib/libboost_system-gcc41-mt-1_38.so.1.38.0 -- jean . .. .... //\\\oo///\\
AMDG Jean Jordaan wrote:
I'm attaching the log. This looks like it corresponds to the error I'm seeing:
/usr/bin/ld: warning: libboost_system-gcc41-mt-1_38.so.1.38.0, needed by /home/zope/local/lib/libboost_filesystem-gcc41-mt.so, not found (try using -rpath or -rpath-link)
That file does exist:
$ ls -lh /home/zope/local/lib/libboost_system-gcc41-mt-1_38.so.1.38.0 -rwxr-xr-x 1 zope zope 14K 2009-03-19 10:48 /home/zope/local/lib/libboost_system-gcc41-mt-1_38.so.1.38.0
Ok. There's something a little odd going on because when the output says that it's checking -lboost_filesystem-gcc41-mt-1_38, config.log says that it's checking -lgcc41-mt. Anyway, try running the link command manually and add -Wl,--verbose to see exactly what files the linker searches for. In Christ, Steven Watanabe
Hi there
Ok. There's something a little odd going on because when the output says that it's checking -lboost_filesystem-gcc41-mt-1_38, config.log says that it's checking -lgcc41-mt.
I see those two in different parts of the output.
Anyway, try running the link command manually and add -Wl,--verbose to see exactly what files the linker searches for.
I don't see the link command logged anywhere .. running the g++ commandline directly doesn't help, since conftest.cpp doesn't exist .. I guess it only exists during the build process.
From the logfile, here are two other unrelated ld failures:
""" configure:22229: gcc -o conftest -g -O2 -I/home/zope/local/include/boost-1_38 conftest.c -lpthreads >&5 /usr/bin/ld: cannot find -lpthreads configure:22229: gcc -o conftest -g -O2 -I/home/zope/local/include/boost-1_38 conftest.c -llthread >&5 /usr/bin/ld: cannot find -llthread """ Here are the two relevant-looking ones: """ configure:23688: checking for exit in -lgcc41-mt configure:23723: g++ -o conftest -g -O2 -I/home/zope/local/include/boost-1_38 -I/usr/include -L/home/zope/local/lib conftest.cpp -lgcc41-mt >&5 /usr/bin/ld: cannot find -lgcc41-mt configure:23688: checking for exit in -lboost_filesystem-gcc41-mt configure:23723: g++ -o conftest -g -O2 -I/home/zope/local/include/boost-1_38 -I/usr/include -L/home/zope/local/lib conftest.cpp -lboost_filesystem-gcc41-mt >&5 /usr/bin/ld: warning: libboost_system-gcc41-mt-1_38.so.1.38.0, needed by /home/zope/local/lib/libboost_filesystem-gcc41-mt.so, not found (try using -rpath or -rpath-link) /home/zope/local/lib/libboost_filesystem-gcc41-mt.so: undefined reference to `boost::system::get_system_category()' /home/zope/local/lib/libboost_filesystem-gcc41-mt.so: undefined reference to `boost::system::get_generic_category()' """ I don't understand those last three lines: libboost_filesystem-gcc41-mt.so is a symlink to libboost_system-gcc41-mt-1_38.so.1.38.0, so how can the first one be found and not the second? -- jean . .. .... //\\\oo///\\
participants (2)
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Jean Jordaan -
Steven Watanabe