Hello Jim, * Jim wrote on Wed, Jun 28, 2006 at 09:50:53PM CEST: > One of the classes in the shared library requires/references a system > library. I included the system library in the library list of the > program that is using the shared library but I guess because the objects > in the program don't require it, the loader is ignoring it and complains > that it can't find "....".
> I tried reordering the references, but if that's the solution, I didn't > get it right. Note you list -lsqlite3 both before and after -limageserver-0.1. Try listing it after only (or do they depend on each other mutually? Then you may need --preserve-dup-deps in AM_LIBTOOLFLAGS). But... > Here's the error: > g++ -g -O2 -o vaprobe arc.o probethread.o protocamera.o protosimple.o > vaprobe.o -L/usr/lib/mysql -limageserver-0.1 /usr/lib/libsqlite3.so > -lmysqlpp -lboost_regex /usr/lib/libmysqlclient.so -lpthread -lssl > -lccgnu2 /usr/lib/libcurl.so -lccext2 -ldl /usr/lib/libxml2.so > /usr/local/lib/libimageserver-0.1.so: undefined reference to > `sqlite3_decode_binary(unsigned char const*, unsigned char*)' ...is sqlite3_decode_binary a function with C or C++ linkage? The above error does not find a C++ linkage function, maybe that was the real problem. Also, on my system, the /usr/lib/libsqlite3.so.0 from Debian package libsqlite3-0 3.2.1-1 apparently does not contain a function of this name at all, neither C nor C++ linkage. > Here's the imageserver/Makefile.am file > > INCLUDES = -I/usr/include/cc++2 -I/usr/local/include > -I/usr/include/mysql -I/usr/local/include/imageserver-0.0 > DEPS_CLAGS = -I/usr/include/cc++2 -I/usr/local/include -I/usr/include/mysql > DEPS_LIBS= -L/usr/lib/mysql -lsqlite3 -limageserver-0.1 -lsqlite3 > -lmysqlpp -lboost_regex -lmysqlclient -lpthread -lssl -lccgnu2 -lcurl > -lccext2 -ldl -lxml2 > Note, I tried to put it in before and after but libtool reoders it. > Is there somthing I can do when I generate the shared library that might > get saved so the loader knows I need the sqlite3 library? This worked > fine when the class referencing the sqlite3 library was part of the > vaprobe program. Hope this helps. Cheers, Ralf
