https://stackoverflow.com/questions/6429494/undefined-symbols-for-architecture-armv7
Look at common cause 3 in the first answer. These are the undefined symbols:
"_ENGINE_load_builtin_engines", referenced from:
_libssh2_init in global.c.o
__libssh2_init_if_needed in global.c.o
"_ENGINE_register_all_complete", referenced from:
_libssh2_init in global.c.o
__libssh2_init_if_needed in global.c.o
_libssh2_init in global.c.o
__libssh2_init_if_needed in global.c.o
"_ENGINE_register_all_complete", referenced from:
_libssh2_init in global.c.o
__libssh2_init_if_needed in global.c.o
presumably you didn't recompile them for iOS.
Teja Prabhu
Hello.
I have built libssh2 with openssl in windows (MVC 2017), linux (GCC >6),
mac (clang 8 - 10), android (NDK19 / API 21-24 / clang) successfully.
Now I am stuck trying to build it for iOS. The error I get is about an
undefined symbol as folows
ld: warning: -headerpad_max_install_names is ignored when used with
-bitcode_bundle (Xcode setting ENABLE_BITCODE=YES)
undefined symbols for architecture armv7:
"_ENGINE_load_builtin_engines", referenced from:
_libssh2_init in global.c.o
__libssh2_init_if_needed in global.c.o
"_ENGINE_register_all_complete", referenced from:
_libssh2_init in global.c.o
__libssh2_init_if_needed in global.c.o
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
From what I understand, the problem is that the static lib is not
including a symbol?
I am using XCode 10.2.1 and the command I used to build OpenSSL is
./Configure iphoneos-cross
-lsysroot/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.2.sdk
-mios-version-min=10.0 -fembed-bitcode -O3
--sysroot=/Application/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.2.sdk
-fPIC --with-zlib-include=/Users/roll/sdks/zlib/include
--with-zlib-lib=/Users/roll/sdks/zlib/lib
the build process ends without error and a libcrypto.a and libssl.a
files are created.
Can anybody point me what am I doing wrong or misunderstanding?
Thanks in advance.
