Re: Cross compilation with openssl > 1.0.2

[Andrey Strunin <acrapmonster@xxxxxxxxx>]

Hi,

Actually I just built the whole library (before even reading your message).
I did it with nasty hack of disabling the whole libcrypto-compat.c with
`#if 0`.

I think there is some problem with detection OPENSSL version when cross
compiling (in my logs I saw that it detected 1.0.2k. It looks like it found
a host library...)

UPD:
Just added this line to my toolchain cmake file and removed `#if 0` hack
from libcrypto-compat.c:
SET(OPENSSL_VERSION 3.0.0)

Everything builds great.

Thanks,
Andrey

ср, 19 мая 2021 г. в 13:25, Anderson Sasaki <ansasaki@xxxxxxxxxx>:

>
>
> On Wed, May 19, 2021 at 11:26 AM Andrey Strunin <acrapmonster@xxxxxxxxx>
> wrote:
>
>> Thank you for the response,
>>
>> I am using my own cmake toolchain file that sets compiler and sysroot. It
>> worked great when it was openssl 1.0.2 in sysroot.
>>
>> Here is the content of my toolchain.cmake file:
>>
>> #CMAKE Toolchain file for PowerPC
>> # this one is important
>> SET(CMAKE_SYSTEM_NAME Linux)
>> #this one not so much
>> SET(CMAKE_SYSTEM_VERSION 1)
>>
>> # specify the cross compiler
>> SET(CMAKE_C_COMPILER
>> /localhome/new_sdk/gnss_tcc-glibc_cgl/x86-linux2/ppc_e500v2-target-linux-gnu-gcc)
>> SET(CMAKE_CXX_COMPILER
>> /localhome/new_sdk/gnss_tcc-glibc_cgl/x86-linux2/ppc_e500v2-target-linux-gnu-g++)
>>
>> # where is the target environment
>> SET(CMAKE_FIND_ROOT_PATH  /localhome/new_sdk/gnss_tcc-glibc_cgl/sysroot)
>>
>> # Local plaform dependent toolchain outputs
>> SET(CMAKE_LOCAL_BASE_ROOT_PATH
>>  /localhome/new_sdk/gnss_tcc-glibc_cgl/sysroot)
>>
>> # search for programs in the build host directories
>> SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
>> # for libraries and headers in the target directories
>> SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
>> SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
>>
>> Here is the output with openssl related errors:
>> https://pastebin.com/raw/NrMXi5M8
>>
>> I should have clarified the version of libssh I am using. It's the latest
>> 0.9.5. However, I have the same build issue (maybe with slightly different
>> errors, but still related to openssl) with older versions (such as 0.8.9).
>>
>> Thanks,
>> Andrey
>>
>>
> Hello,
>
> After checking the log you linked, I suspect cmake failed to detect the
> OpenSSL version and included libcrypto-compat.c into the sources. In my
> machine (Fedora 33), I see this line when running cmake to generate the
> configuration:
>
> -- Found OpenSSL: /usr/lib64/libcrypto.so (found suitable version
> "1.1.1k", minimum required is "1.0.1")
>
> Please check if cmake found the dynamic library you expected. Maybe you
> will have to tweak the places where cmake searches for libraries in your
> custom environment.
>
> In my machine, the "OPENSSL_FOUND" and "OPENSSL_VERSION" are set by the
> cmake module "FindOpenSSL.cmake" which is located at
> /usr/share/cmake/Modules.
>
> Regards,
> Anderson
>