Write a dylib
gcc -dynamiclib foo.c -o libfoo.dylib
gcc main.c -L. -lfoo -o main
To specify a install_name of a dylib, use -install_name in gcc
gcc -dynamiclib foo.c -install_name -o libfoo.dylib
The install_name of dylib will be write in main
otool
show all dylib
otool -L <executable>
Check all the dylib linked in main, where the
install_name of a dylib is the path where main links the dylib.
example:
otool -L main
show the id of dylib
otool -D <dylib>
Check the install_name of a dylib
example:
otool -D libfoo.dylib
change the id of dylib
install_name_tool -id <new name> <dylib>
Change the install_name_tool of libfoo.dylib to ../libfoo.dylib
example:
install_name_tool -id ../libfoo.dylib libfoo.dylib
Change the path where executable find the dylib
install_name_tool -change <old value> <new value> <executable>
example:
install_name_tool -change ../libfoo.dylib ../../libfoo.dylib main
NOTE: One more method, if install_name of a dylib is not corret, setting
the environment variable $DYLD_LIBRARY_PATH to the path where the
dylib is can let executable find the dylib successfully. More info can
see man dyld.
More info see
mac/dylib.
libnet Compling from source
brew install automake libtool doxygen libdnet
Use build process from the source of libnet for instance.
1. Find the top source direction with .configure
./configure --prefix=<where you want to install>
2. check if Makefile here
make
make install
3. Done!
Generally the the install_name of libnet.dylib will be set properly.
Use the method above configure, make, make install with
libnet-1.2-rc3.tar.gz (recommand)
Or use the method show in BUILD-FROM-GIT.txt
Jacob Pan ( jacobpan3g.github.io/ )