On Sunday, September 30, 2012 at 10:46 AM, Jon Lederman wrote:
Hi Anthony,I had a question about the LOCAL_LIBADD syntax. I have several libraries I need to add.When I tried:LOCAL_LIBADD=path_to_lib1/lib1.aLOCAL_LIBADD+=path_to_lib2/lib2.aLOCAL_LIBADD+=path_to_lib3/lib3.aHowever, this didn't seem to work. Does the += syntax append libraries? I was able to get around this problem by extracting the .a files and the combining them in a single .a file, which I was able to load into audio weaver. What is the correct syntax to add multiple libraries in the makefile?Thanks.-JonOn Sep 28, 2012, at 9:26 AM, Anthony Minessale <anthony.minessale@gmail.com> wrote:if you want to do it that way then build a static version of your aw.so and use the .a in the LOCAL_LIBADDif you want to do the .so it would have to be installed somewhere and in the LD_LIBRARY_PATH at runtime_________________________________________________________________________
On Fri, Sep 28, 2012 at 10:56 AM, Jon Lederman <jon2718@gmail.com> wrote:Hi,Thanks for your reply. The problem is that I'm not sure I'm linking the external libs correctly. My module makefile is:BASE=../../../..
LOCAL_LIBADD+=./lib/aw.so
include $(BASE)/build/modmake.rules
Shouldn't LOCAL_LIBADD be enough. Or do I need additional statements in my makefile. The aw.so defines the symbol in question yet I still receive the missing symbol message when I try to load the module.Any help would be greatly appreciated.Thanks in advance.Jonto auto-load you also need modules.conf.xml modules.conf is only for building.The module can't load because it's missing the symbol:
ZN10CAWETalker9ConfigureEPKc
So you need to link in any external libs you might be using into your .soOn Fri, Sep 28, 2012 at 12:05 AM, Jon Lederman <jon2718@gmail.com> wrote:Hi,
I am writing a custom module called mod_aw for freeswitch that uses a dynamic library called aw.so containing a c++ class. I edited the makefile for my module to:
BASE=../../../..
LOCAL_LIBADD+=./lib/aw.so
include $(BASE)/build/modmake.rules
I am able to build the module and also modified modules.conf to include the new module.
When I start freeswitch, I don't see a message that the module was loaded.
When I type: reload mod_aw I receive the following error:
2012-09-28 04:49:52.738493 [CRIT] switch_loadable_module.c:1310 Error Loading module /usr/local/freeswitch/mod/mod_aw.so
**/usr/local/freeswitch/mod/mod_aw.so: undefined symbol: _ZN10CAWETalker9ConfigureEPKc**
-ERR unloading module [No such module!]
+OK Reloading XML
-ERR loading module [module load file routine returned an error]
I know the library works as I have tried it in another program outside of freeswitch. I am not sure what I am doing wrong. I am wondering whether I need to provide extern "C" linkage for the c++ library. However, I only have the .h file and .so file for the library. Or, do I need to add something to my Makefile.
Any help on how to configure this would be greatly appreciated.
Thank you in advance.
-Jon
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