Re: static library linking issues


Piotr Stanczyk <piotr.s...@...>
 

thanks for catching that one Jeremy; I'll pass it onto our build guys.

Alas, my cmake skills are well below par, though I may have a go at this one ..

Piotr

On Fri, May 11, 2012 at 5:25 PM, Jeremy Selan <jeremy...@...> wrote:
Ok, so I'm able to fully reproduce your error when using static linking with
a simple test case.

g++ main.cpp -Ibuild/dist/include -ostatictest
build/dist/lib/libOpenColorIO.a

I created a main.cpp, where all it does is print the name of linear.
https://gist.github.com/2663280

If I manually add the .a for yaml and tinyxml everything works!

g++ main.cpp -Ibuild/dist/include -ostatictest
build/dist/lib/libOpenColorIO.a build/ext/dist/lib/libyaml-cpp.a
build/ext/dist/lib/libtinyxml.a

So as you noted, the static symbols from these two dependencies are not
making into ocio.  I'm not much of a cmake expert, but it doesnt seem like
this would be too hard to patch up.

-- Jeremy


On Fri, May 11, 2012 at 1:08 PM, Jeremy Selan <jeremy...@...>
wrote:

Sorry, i'll try to look into this.

Is anyone out there successfully statically building against OCIO?

-- Jeremy


On Fri, May 11, 2012 at 10:25 AM, Piotr <piotr.s...@...> wrote:

Just checking in to see if anyone has some magic voodoo for this -
thanks

Piotr


On May 7, 4:51 pm, Piotr Stanczyk <piotr.s...@...> wrote:
Hi Jeremy,

Sorry for the delay in getting this info back to you. This is what our
build people say:

We're actually building verison 1.0.6.  This was a clean build, and
we're not using ocio elsewhere in our codebase.  The ocio build was
invoked via:

cmake -D CMAKE_INSTALL_PREFIX=../dist -D CMAKE_SKIP_RPATH=YES -D
PYTHON=/usr/bin/python2.6 ../

Could it be that the symbols from the the YAML and tinxml libs are
hidden in the ocio build?  Is there a way to disable that and make
them all publicly available?  Taking the first undefined reference,
for example:

objdump -tC libOpenColorIO.so.1.0.6 | grep "YAML::Emitter::Emitter"
00000000000cfb00 l     F .text  000000000000006c              .hidden
YAML::Emitter::Emitter()
00000000000cfb70 l     F .text  000000000000006c              .hidden
YAML::Emitter::Emitter()

And in the ocio code it's definitely referenced ( src/core/Config.cpp
):

void Config::serialize(std::ostream& os) const
{
    try
    {
        YAML::Emitter out;







On Tue, May 1, 2012 at 4:24 PM, Jeremy Selan <jeremy...@...>
wrote:
Ugh!
Sorry to hear you've having trouble with static linking.
Can you post the shell command you're using to build OCIO with?
(At SPI we happen to only use OCIO in a dynamically linked context so
we
havent run into this error yet).
In the latest OCIO release (1.0.7) we bumped the internal yaml-cpp
dependency to 0.3.0. I presume you're building 1.0.7?
A few ideas to test:
- Can you confirm that you're using a clean build?  It's possible
that if
you have old .o files lying around-  built against a prior OCIO - it
could
cause weirdness.
- Is it possible that another part of your codebase is statically
linking
against a different OCIO version? (If you have another part of the
code
statically links to 0.2.X yaml-cpp, I could imagine a yaml-cpp symbol
clash)
-- Jeremy
On Tue, May 1, 2012 at 11:35 AM, Piotr Stanczyk
<piotr.s...@...>
wrote:
Hi All,
So far I've been using the .so's to link against. However, I've run
into an issue with building a binary that links against the static
libs with a sleuth of errors (see below).
I don't think I did anything unusual in the building of this. I'll
start digging into what could be causing this, but if anyone has any
pointers that would be most welcome.
Cheers
Piotr

/var/tmp-ssd/doNotRemove/builds/zeno3_ssd/RHEL5_AMD64_OPT/lib/libOpenColorI
O.a(Config.cpp.o):
In function `OpenColorIO::v1::Config::serialize(std::basic_ostrea
m<char, std::char_traits<char> >&) const':

/home/ewimmer/ewimmer_importlibs/importlibs/src/OpenColorIO/imageworks-Open
ColorIO-a16d9ac/src/core/Config.cpp:1591:
undefined reference to `YAML::Emitter::Emi
tter()'

/var/tmp-ssd/doNotRemove/builds/zeno3_ssd/RHEL5_AMD64_OPT/lib/libOpenColorI
O.a(Config.cpp.o):
In function `operator<<':

/home/ewimmer/ewimmer_importlibs/importlibs/src/OpenColorIO/imageworks-Open
ColorIO-a16d9ac/build/ext/dist/include/yaml-cpp/emitter.h:152:
undefined reference t
o `YAML::Emitter::SetLocalValue(YAML::EMITTER_MANIP)'

/var/tmp-ssd/doNotRemove/builds/zeno3_ssd/RHEL5_AMD64_OPT/lib/libOpenColorI
O.a(Config.cpp.o):
In function `operator<<':

/home/ewimmer/ewimmer_importlibs/importlibs/src/OpenColorIO/imageworks-Open
ColorIO-a16d9ac/src/core/Config.cpp:1594:
undefined reference to `YAML::Emitter::Set
LocalValue(YAML::EMITTER_MANIP)'

/home/ewimmer/ewimmer_importlibs/importlibs/src/OpenColorIO/imageworks-Open
ColorIO-a16d9ac/src/core/Config.cpp:1594:
undefined reference to `YAML::Emitter::Set
LocalValue(YAML::EMITTER_MANIP)'

/var/tmp-ssd/doNotRemove/builds/zeno3_ssd/RHEL5_AMD64_OPT/lib/libOpenColorI
O.a(Config.cpp.o):
In function `operator<<':

/home/ewimmer/ewimmer_importlibs/importlibs/src/OpenColorIO/imageworks-Open
ColorIO-a16d9ac/build/ext/dist/include/yaml-cpp/emitter.h:152:
undefined reference t
o `YAML::Emitter::SetLocalValue(YAML::EMITTER_MANIP)'

/var/tmp-ssd/doNotRemove/builds/zeno3_ssd/RHEL5_AMD64_OPT/lib/libOpenColorI
O.a(Config.cpp.o):
In function `WriteIntegralType<int>':

/home/ewimmer/ewimmer_importlibs/importlibs/src/OpenColorIO/imageworks-Open
ColorIO-a16d9ac/build/ext/dist/include/yaml-cpp/emitter.h:104:
undefined reference t
o `YAML::Emitter::good() const'

/home/ewimmer/ewimmer_importlibs/importlibs/src/OpenColorIO/imageworks-Open
ColorIO-a16d9ac/build/ext/dist/include/yaml-cpp/emitter.h:108:
undefined reference t
o `YAML::Emitter::PreWriteIntegralType(std::basic_stringstream<char,
std::char_traits<char>, std::allocator<char> >&)'

/home/ewimmer/ewimmer_importlibs/importlibs/src/OpenColorIO/imageworks-Open
ColorIO-a16d9ac/build/ext/dist/include/yaml-cpp/emitter.h:110:
undefined reference t
o
`YAML::Emitter::PostWriteIntegralType(std::basic_stringstream<char,
std::char_traits<char>, std::allocator<char> > const&)'

/var/tmp-ssd/doNotRemove/builds/zeno3_ssd/RHEL5_AMD64_OPT/lib/libOpenColorI
O.a(Config.cpp.o):
In function `operator<<':

/home/ewimmer/ewimmer_importlibs/importlibs/src/OpenColorIO/imageworks-Open
ColorIO-a16d9ac/build/ext/dist/include/yaml-cpp/emitter.h:152:
undefined reference t
o `YAML::Emitter::SetLocalValue(YAML::EMITTER_MANIP)'
/home/ewimmer/ewimmer_importlibs/importlibs/src/OpenColorIO/ima
....

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