Hi, I'm trying to load libgcrypt library (brew install libgcrypt) with dlopen/dlsym but getting a crash when I use RTLD_LAZY | RTLD_LOCAL mode with dlopen. Any other combination works, for example: RTLD_LAZY | RTLD_GLOBAL RTLD_NOW | RTLD_GLOBAL RTLD_NOW | RTLD_LOCAL I have attached a tiny sample program to reproduce the issue: $ gcc -o dyld_test dyld_test.c $ ./dyld_test gcry_check_version dyld: lazy symbol binding failed: Symbol not found: __gcry_check_version Referenced from: /usr/local/lib/libgcrypt.dylib Expected in: flat namespace dyld: Symbol not found: __gcry_check_version Referenced from: /usr/local/lib/libgcrypt.dylib Expected in: flat namespace I have tried to build dyld myself but failed to succeed. https://opensource.apple.com/source/dyld/dyld-852.2/ Any help would be really appreciated. Thank you, Aleix dyld_test.c