Hello. Sorry if I didn't study the documentation well, but I don't understand the following aspect: why does libtool not link to its own la archives when linking with a -lname key? $ ls /usr/local/lib libmy.a libmy.la libmy.so libmy.so.0 libmy.so.0.0.0 libmy specifically made it dependent on libfltk and libEGL. $ readelf -a /usr/local/lib/libmy.so | grep NEEDED (NEEDED) Shared library: [libfltk_SHARED.so.1.4] (NEEDED) Shared library: [libEGL.so.1] ...
Let's link a test program with libmy: $ libtool --tag=CXX --mode=link g++ -o test_app test_app.o -lmy test_app does not become dependent on libflt and libEGL (they are not in the dynamic section labeled "NEEDED". Linking test_app with absolute path to libmy does: $ libtool --tag=CXX --mode=link g++ -o test_app test_app.o /usr/local/lib/libmy.la but relying on absolute path is bad. I can’t know in advance where the library will be installed (/usr/lib, /usr/local/lib, ...).