Subject: should gcc's LIB_SPEC include -lc when linking shared libraries?
To: None <firstname.lastname@example.org>
From: J.T. Conklin <email@example.com>
Date: 03/09/2006 17:38:32
I work on an application which uses dlopen()-ed shared libraries for
strategied behavior. Recently, we ran into a problem loading a *.so
that turned out to be caused by the fact that it hadn't been linked
against all it's requisite libraries.
To avoid this problem in the future, I tried passing -Wl,-z,defs to
the compiler when linking the *.so. This complained about unresolved
references that would be satisfied by libc.so. With current versions
of the linker, -lc could be wrapped by --as-needed / -no-as-needed so
the ELF DT_NEEDED tag wouldn't be added unless something from libc is
While I could explicitly pass -lc, it appears that other systems like
Linux pass -lc to the linker when -shared is used.
Should NetBSD do the same?