aix, dlopen(NULL, .), and gcc

For dlopen() [and the underlying AIX load()] functions to work,the symbols must be visible.  You either need to explicitly export thesymbols you will inquire with GCC -Wl,-bE:symbols.exp where symbols.expcontains a single line:fooor use -Wl,-bexpall which will work in this case but may cause problems inmore complicated settings.