Build error when Linux, openssl (plus -DCOMPILED_LIBCRYPTO_PATH), shared lib, toolchain NONE

[lordaule]

The code below, in CMakeLists.txt, modifies the library linking:

1092         elseif(CRYPTO STREQUAL "openssl")
1093             set(CRYPTO_DEPS "-lssl -lcrypto")
1094             if(TOOLCHAIN STREQUAL "NONE")
1095                 target_link_libraries(${LIB_NAME}_crypto
1096                     PUBLIC openssllib
1097                     PUBLIC cryptlib_openssl
1098                 )
1099             else()
1100                 target_link_libraries(${LIB_NAME}_crypto
1101                     PUBLIC ssl
1102                     PUBLIC crypto
1103                 )
1104             endif()
1105         endif()

This results in the following build error:

[ 30%] Linking C shared library lib/libspdm_crypto.so
/xxx/crosscompiler/gcc-4.9__150325/arm/bin/../lib/gcc-cross/arm-linux-gnueabi/4.9/../../../../arm-linux-gnueabi/bin/ld: cannot find -lopenssllib
collect2: error: ld returned 1 exit status

If we remove lines 1094-1099 (and the resulting dangling endif at 1104), libspdm builds without error.

Note that we provide Cmake flags COMPILED_LIBSSL_PATH and COMPILED_LIBCRYPTO_PATH to point to our externally compiled libcrypto.so and libssl.so