dlsym(RTLD_NEXT) + weak symbol doesn't work with LD_PRELOAD

[Takehiko NOZAKI]

related Issue #67

try attached sample code, following works fine.

$ ./test_c
i'm libc!
$ ./test_pthread
i'm libpthread!
$ LD_PRELOAD=./libpthread_dummy.so.0.0  ./test_c
i'm libpthread!

but LD_PRELOAD=./librumphijack_dummy.so doesn't work anymore.

$ LD_PRELOAD=./librumphijack_dummy.so ./test_c
start hijack
i'm libc!
end hijack

[Takehiko NOZAKI]

BUGFIX: Issue #76 -- dlsym(RTLD_NEXT) + weak symbol doesn't work with LD_PRELOAD.

→ <<cset 5e5919d6b823>>