Hi all, I got that, glibc can support SHA in crypt lib since v2.7. There is a requirement in my application to use SHA, but update the whole glibc is too risky. So I want to build a specific crypt lib for the module using crypt function in my application.
Now the calling graph seems like this, from a simple view. crypt_user.c ----> call crypt() function in libcrypt.so myutil.c -----> call functions in crypt_user.c, and it will be build to a shared lib, libmyutil.so Executable program : server -----> need to use libmyutil.so to work. Now I can ONLY use the latest static lib libcrypt.a from the new glibc. How should I use it ? Link it when build libmyutil.so or build server ? I tried to update my Makefile to link the libcrypt.a, but seems that the called crypt function is not as I expected, it's still from the old glibc. Could anybody give me a help with how to use the gcc option and write a working Makefile ? Any reply will be appreciated! Thanks,